VCA810

FEATURES � HIGH GAIN ADJUST RANGE: �40dB � DIFFERENTIAL IN/SINGLE-ENDED OUT � LOW INPUT NOISE VOLTAGE: 2.4nV/�Hz � CONSTANT BANDWIDTH vs GAIN: 35MHz � HIGH dB/V GAIN LINEARITY: �0.3dB � GAIN CONTROL BANDWIDTH: 25MHz � LOW OUTPUT DC ERROR: < �40mV � HIGH OUTPUT CURRENT: �60mA � LOW SUPPLY CURRENT: 24.8mA (max for −40�C to +85�C temperature range) APPLICATIONS � OPTICAL RECEIVER TIME GAIN CONTROL � SONAR SYSTEMS � VOLTAGE-TUNABLE ACTIVE FILTERS � LOG AMPLIFIER � PULSE AMPLITUDE COMPENSATION � AGC RECEIVER WITH RSSI � IMPROVED REPLACEMENT FOR THE VCA610 +5V −5V VOUT VC 0 → −2V −40dB → +40dB Gain VCA810 X1 2 3 V+ V− 1 6 7 5 8 Gain Adjust + DESCRIPTION The VCA810 is a DC-coupled, wideband, continuously variable, voltage-controlled gain amplifier. It provides a differential input to single-ended output conversion with a high-impedance gain control input used to vary the gain over a –40dB to +40dB range linear in dB/V. Operating from ±5V supplies, the gain control voltage for the VCA810 will adjust the gain from –40dB at 0V input to +40dB at –2V input. Increasing the control voltage above ground will attenuate the signal path to > 80dB. Signal bandwidth and slew rate remain constant over the entire gain adjust range. This 40dB/V gain control is accurate within ±1.5dB (±0.9dB for High Grade), allowing the gain control voltage in an AGC application to be used as a Received Signal Strength Indicator (RSSI) with ±1.5dB accuracy. Excellent common-mode rejection and common-mode input range at the two high-impedance inputs allow the VCA810 to provide a differential receiver operation with gain adjust. The output signal is referenced to ground. Zero differential input voltage gives a 0V output with a small DC offset error. Low input noise voltage ensures good output SNR at the highest gain settings. In applications where pulse edge information is critical, and the VCA810 is being used to equalize varying channel loss, minimal change in group delay over gain setting will retain excellent pulse edge information. An improved output stage provides adequate output current to drive the most demanding loads. While principally intended to drive analog-to-digital converters (ADCs) or 2nd-stage amplifiers, the ±60mA output current will easily drive doubly-terminated 50Ω lines or a passive post filter stage over the ±1.7V output voltage range. VCA810 RELATED PRODUCTS SINGLES DUALS GAIN ADJUST RANGE (dB) INPUT NOISE (nV/�Hz) SIGNAL BANDWIDTH (MHz) VCA811 — 80 2.4 80 — VCA2612 45 1.25 80 — VCA2613 45 1 80 — VCA2614 45 3.6 40 — VCA2616 45 3.3 40 — VCA2618 45 5.5 30 All trademarks are the property of their respective owners. VCA810 SBOS275C − JUNE 2003 − REVISED OCTOBER 2004 High Gain Adjust Range, Wideband, Voltage-Controlled Amplifier www.ti.com Copyright  2003−2004, Texas Instruments Incorporated Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. ��������� � � �� �������� �� ������� �� � ����������� ����� �������� ��� ��� �� ����� �������� ��� ��� ����� � ����� ����������� �������� ��������� ���������� ���������! ���� ��� ����������� ������� ������! � ��� ����������� 查询VCA810供应商 "� #$% SBOS275C − JUNE 2003 − REVISED OCTOBER 2004 www.ti.com 2 ABSOLUTE MAXIMUM RATINGS(1) Power Supply ±6.5VDC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internal Power Dissipation See Thermal Analysis Section. . . . . . . Differential Input Voltage ±VS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input Common-Mode Voltage Range ±VS. . . . . . . . . . . . . . . . . . . . Storage Temperature Range: D −40°C to +125°C. . . . . . . . . . . . . . Lead Temperature (soldering, 10s) +300°C. . . . . . . . . . . . . . . . . . . . . Junction Temperature +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ESD Rating (Human Body Model) 2000V. . . . . . . . . . . . . . . . . . . . (Charge Device Model) 1500V. . . . . . . . . . . . . . . . . . . (Machine Model) 200V. . . . . . . . . . . . . . . . . . . . . . . . . . . (1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those specified is not implied. ELECTROSTATIC DISCHARGE SENSITIVITY This integrated circuit can be damaged by ESD. Texas Instruments rec- ommends that all integrated circuits be handled with appropriate pre- cautions. Failure to observe proper handling and installation proce- dures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. PACKAGE/ORDERING INFORMATION(1) PRODUCT PACKAGE-LEAD PACKAGEDESIGNATOR SPECIFIED TEMPERATURE RANGE PACKAGE MARKING ORDERING NUMBER TRANSPORT MEDIA, QUANTITY VCA810ID SO−8 D −40°C to +85°C VCA810 VCA810ID Rails, 100 VCA810ID SO−8 D −40°C to +85°C VCA810 VCA810IDR Tape and Reel, 2500 VCA810AID SO−8 D −40°C to +85°C VCA810A(2) VCA810AID Rails, 100 VCA810AID SO−8 D −40°C to +85°C VCA810A(2) VCA810AIDR Tape and Reel, 2500 (1) For the most current specification and package information, see the Package Option Addendum located at the end of this data sheet. (2) The A indicating high grade will appear opposite the pin 1 marking indicator. PIN CONFIGURATION Top View SO−8 −VS 7 +VS 6 −In 8 A(1) VOUT 5 VCA810 2 GND 31 +In NOTES: (1) High Grade Indicator. (2) NC = Not Connected. 4 Gain Control, VC NC(2) "� #$% SBOS275C − JUNE 2003 − REVISED OCTOBER 2004 www.ti.com 3 ELECTRICAL CHARACTERISTICS: VS = �5V Boldface limits are tested at +25�C. RL = 500Ω, and VIN = single-ended input on V+ with V− at ground, unless otherwise noted. VCA810ID TYP MIN/MAX OVER TEMPERATURE PARAMETER CONDITIONS +25°C +25°C(1) +0°C to +70°C(2) −40°C to +85°C(2) UNITS MIN/ MAX TEST LEVELS(3) AC PERFORMANCE (see Figure 1) Small-Signal Bandwidth −2V ≤ VC ≤ 0 35 30 29 29 MHz min B Large-Signal Bandwidth VO = 2VPP, −2 ≤ VC ≤ −1 35 30 29 29 MHz min B Frequency Response Peaking VO < 500mVPP, −2 ≤ VC ≤ 0 0.1 0.5 0.5 0.5 dB min B Slew Rate VO = 3.5V Step, −2 ≤ VC ≤ −1, 10%−90% 350 300 300 295 V/µs min B Settling Time to 0.1% VO = 1V Step, −2 ≤ VC ≤ −1 30 40 41 41 ns min B Rise-and-Fall Time VO = 1V Step, −2 ≤ VC ≤ −1 10 12 12.1 12.1 ns min B Group Delay G=0dB, VC=−1V, f = 5MHz, VO = 500mVPP 6.2 ns typ C Group Delay Variation VO < 500mVPP, −2 ≤ VC ≤ 0, f = 5MHz 3.5 ns typ C Harmonic Distortion 2nd-Harmonic VO = 1VPP, f = 1MHz, VC = −1V, G = 0dB −71 −51 −50 −49 dBc min B 3rd-Harmonic VO = 1VPP, f = 1MHz,VC = −1V, G = 0dB −35 −34 −32 −29 dBc min B Input Voltage Noise VC = −2V 2.4 2.8 3.4 3.5 nV/√Hz max B Input Current Noise −2V ≤ VC ≤ 0V 1.4 1.8 2.0 2.1 pA/√Hz max B Fully Attenuated Feedthrough f ≤ 1MHz, VC > +200mV −80 −70 dB max B Overdrive Recovery VIN = 2V to 0V, VC = −2V, G = 40dB 100 150 ns min B DC PERFORMANCE Single-Ended or Differential Input Output Offset Voltage(4) (both inputs grounded) −2V ≤ VC ≤ 0V ±4 �22 ±30 ±32 mV max A Output Offset Voltage Drift ±125 ±125 V/°C max B Input Offset Voltage(4) Both Inputs Grounded ±0.1 �0.25 ±0.30 ±0.35 mV max A Input Offset Voltage Drift ±1 ±1.2 µV/°C max B Input Bias Current −2V ≤ VC ≤ 0V −6 −10 −12 −14 µA max A Input Bias Current Drift ±25 ±30 nA/°C max B Input Offset Current −2V ≤ VC ≤ 0V ±100 �600 ±700 ±800 nA max A Input Offset Current Drift ±1.4 ±2.2 nA/°C max B INPUT Common-Mode Input Range ±2.4 �2.3 ±2.3 ±2.2 V min A Common-Mode Rejection Ratio VCM = 0.5V, VC = −2V, Input Referred 95 85 83 80 dB min A Input Impedance VCM = 0V, Single-Ended 1 || 1 MΩ||pF typ C VCM = 0V, Differential >10||<2 kΩ||pF typ C Differential Input Range(5) VC = 0V, VCM = 0V 3 VPP typ C OUTPUT Voltage Output Swing VC = −2V, RL ≥ 500Ω ±1.8 �1.7 ±1.4 ±1.3 V min A VC = −2V, RL = 100Ω ±1.7 �1.6 ±1.3 ±1.2 V min A Output Current VO = 0V ±60 �40 ±35 ±32 mA min A Output Short-Circuit Current VO = 0V ±120 mA typ C Output Impedance VO = 0V, f < 100kHz 0.2 Ω typ C GAIN CONTROL (VC, Pin 3) Single-Ended or Differential Input Specified Gain Range ∆VC/∆dB = 25mV/dB ±40 dB typ C Maximum Control Voltage G = −40dB 0 V typ C Minimum Control Voltage G = +40dB −2 V typ C Gain Accuracy −1.8V ≤ VC ≤ −0.2V ±0.4 �1.5 ±2.5 ±3.5 dB max A VC < −1.8V, VC > −0.2V ±0.5 �2.2 ±3.7 ±4.7 dB max A Gain Drift −1.8V ≤ VC ≤ −0.2V ±0.02 ±0.03 dB/°C max B VC < −1.8V, VC > −0.2V ±0.03 ±0.04 dB/°C max B Gain Control Slope −40 dB/V typ C Gain Control Linearity(6) −1.8V ≤ VC ≤ 0V ±0.3 �1 ±1.1 ±1.2 dB max A VC < −1.8V ±0.7 �1.6 ±2.5 ±3.2 dB max A Gain Control Bandwidth 25 20 19 19 MHz min B (1) Junction temperature = ambient for +25°C specifications. (2) Junction temperature = ambient at low temperature limit; junction temperature = ambient +30°C at high temperature limit for over temperature specifications. (3) Test levels: (A) 100% tested at +25°C. Over temperature limits by characterization and simulation. (B) Limits set by characterization and simulation. (C) Typical value only for information. (4) Total output offset is: Output Offset Voltage ± Input Offset Voltage x Gain. (5) Maximum input at minimum gain for < 1dB gain compression. (6) Maximum deviation from best line fit. (7) Magnitude. "� #$% SBOS275C − JUNE 2003 − REVISED OCTOBER 2004 www.ti.com 4 ELECTRICAL CHARACTERISTICS: VS = �5V (continued) Boldface limits are tested at +25�C. RL = 500Ω, and VIN = single-ended input on V+ with V− at ground, unless otherwise noted. VCA810ID MIN/MAX OVER TEMPERATURETYP PARAMETER TEST LEVELS(3) MIN/ MAXUNITS −40°C to +85°C(2) +0°C to +70°C(2)+25°C(1)+25°CCONDITIONS Gain Control Slew Rate 80dB Gain Step 900 dB/ns typ C Gain Settling Time 1%, 80dB Step 0.8 µs typ C Input Bias Current VC = −1V −1.5 −3.5 −4.5 −8 µA max A Gain + Power-Supply Rejection Ratio VC = −2V, G = +40dB, +VS = 5V ±0.5V 0.5 1.5 1.8 2 dB/V max A Gain − Power-Supply Rejection Ratio VC = −2V, G = +40dB, −VS = 5V ±0.5V 0.7 1.5 1.8 2 dB/V max A POWER SUPPLY Specified Operating Voltage ±5 V typ C Minimum Operating Voltage �4 ±4 ±4 V min A Maximum Operating Voltage �6 ±6 ±6 V max A Positive Supply Quiescent Current Maximum Quiescent Current +VS = +5V, G = −40dB 10 12.5 12.6 12.7 mA min A Minimum Quiescent Current +VS = +5V, G = −40dB 10 7.5 7.2 7.1 mA max A Maximum Quiescent Current +VS = +5V, G = +40dB 18 20.5 22 22.3 mA min A Minimum Quiescent Current +VS = +5V, G = +40dB 18 15.5 14.5 13.5 mA max A Negative Supply Quiescent Current(7) Maximum Quiescent Current −VS = −5V, G = −40dB 12 14.5 14.6 14.7 mA max A Minimum Quiescent Current −VS = −5V, G = −40dB 12 9.5 9.4 9.3 mA min A Maximum Quiescent Current −VS = −5V, G = +40dB 20 22.5 24.5 24.8 mA max A Minimum Quiescent Current −VS = −5V, G = +40dB 20 17.5 16.5 16 mA min A Positive Power-Supply Rejection Ratio Input Referred, VC = −2V 90 75 75 73 dB min A Negative Power-Supply Rejection Ratio Input Referred, VC = −2V 85 70 70 68 dB min A THERMAL CHARACTERISTICS Specification Operating Range: ID Package −40 to +85 °C typ C Thermal Resistance Junction-to-Ambient D SO−8 125 °C/W typ C (1) Junction temperature = ambient for +25°C specifications. (2) Junction temperature = ambient at low temperature limit; junction temperature = ambient +30°C at high temperature limit for over temperature specifications. (3) Test levels: (A) 100% tested at +25°C. Over temperature limits by characterization and simulation. (B) Limits set by characterization and simulation. (C) Typical value only for information. (4) Total output offset is: Output Offset Voltage ± Input Offset Voltage x Gain. (5) Maximum input at minimum gain for < 1dB gain compression. (6) Maximum deviation from best line fit. (7) Magnitude. HIGH GRADE DC SPECIFICATIONS: VS = �5V (VCA810AID) Boldface limits are tested at +25�C. RL = 500Ω, and VIN = single-ended input on V+ with V− at ground, unless otherwise noted. VCA810AID TYP MIN/MAX OVER TEMPERATURE PARAMETER CONDITIONS +25°C +25°C(1) +0°C to +70°C(2) −40°C to +85°C(2) UNITS MIN/ MAX TEST LEVELS(3) DC PERFORMANCE Single-Ended or Differential Input Output Offset Voltage −2V < VC < 0 ±4 �14 ±24 ±26 mV max A Input Offset Voltage ±0.1 �0.2 ±0.25 ±0.3 mV max A Input Offset Current ±100 �500 ±600 ±700 mA max A GAIN CONTROL (VC, Pin 3) Single-Ended or Differential Input Gain Accuracy −1.8V ≤ VC ≤ −0.2V ±0.4 �0.9 ±1.9 ±2.9 dB max A VC < −1.8V, VC > −0.2V ±0.5 �1.5 ±3.0 ±4.0 dB max A Gain Control Linearity(4) −1.8V ≤ VC ≤ 0V ±0.3 �0.6 ±0.7 ±0.8 dB max A VC < −1.8V ±0.7 �1.1 ±1.9 ±2.7 dB max A (1) Junction temperature = ambient for +25°C specifications. (2) Junction temperature = ambient at low temperature limit; junction temperature = ambient +30°C at high temperature limit for over temperature specifications. (3) Test levels: (A) 100% tested at +25°C. Over temperature limits by characterization and simulation. (B) Limits set by characterization and simulation. (C) Typical value only for information. (4) Maximum deviation from best line fit. (5) Magnitude. "� #$% SBOS275C − JUNE 2003 − REVISED OCTOBER 2004 www.ti.com 5 HIGH GRADE DC SPECIFICATIONS: VS = �5V (VCA810AID) (continued) Boldface limits are tested at +25�C. RL = 500Ω, and VIN = single-ended input on V+ with V− at ground, unless otherwise noted. VCA810AID MIN/MAX OVER TEMPERATURETYP PARAMETER TEST LEVELS(3) MIN/ MAXUNITS −40°C to +85°C(2) +0°C to +70°C(2)+25°C(1)+25°CCONDITIONS POWER SUPPLY Positive Supply Quiescent Current Maximum Quiescent Current +VS = +5V, G = −40dB 10 11.5 11.6 11.7 mA min A Minimum Quiescent Current +VS = +5V, G = −40dB 10 8.5 8.2 8.1 mA max A Maximum Quiescent Current +VS = +5V, G = +40dB 18 19.5 21 21.3 mA min A Minimum Quiescent Current +VS = +5V, G = +40dB 18 16.5 15.5 14.5 mA max A Negative Supply Quiescent Current(5) Maximum Quiescent Current −VS = −5V, G = −40dB 12 14 14.1 14.2 mA min A Minimum Quiescent Current −VS = −5V, G = −40dB 12 10 9.9 9.8 mA max A Maximum Quiescent Current −VS = −5V, G = +40dB 20 22 24 24.3 mA min A Minimum Quiescent Current −VS = −5V, G = +40dB 20 18 17 16.5 mA max A (1) Junction temperature = ambient for +25°C specifications. (2) Junction temperature = ambient at low temperature limit; junction temperature = ambient +30°C at high temperature limit for over temperature specifications. (3) Test levels: (A) 100% tested at +25°C. Over temperature limits by characterization and simulation. (B) Limits set by characterization and simulation. (C) Typical value only for information. (4) Maximum deviation from best line fit. (5) Magnitude. "� #$% SBOS275C − JUNE 2003 − REVISED OCTOBER 2004 www.ti.com 6 TYPICAL CHARACTERISTICS: VS = �5V RL = 500Ω and VIN = single-ended input on V+ with V− at ground, unless otherwise noted. 60 40 20 0 −20 −40 −60 SMALL−SIGNAL FREQUENCY RESPONSE Frequency (MHz) Ga in (dB ) 1 10 100 1000 VIN = 10mVPP, VOUT = 1VPP VIN = 100mVPP, VOUT = 1VPP VIN = 1VPP, VOUT = 1VPP VOUT = 2VPP, VIN = 200mVPP VOUT = 2VPP, VIN = 20mVPP 3 0 −3 −6 −9 −12 −15 −18 GAIN CONTROL FREQUENCY RESPONSE Frequency (MHz) G ai n (dB ) 1 10 100 RL = 500Ω VC = −1VDC + 10mVPP 150 100 50 0 −50 −100 −150 ATTENUATED PULSE RESPONSE Time (20ns/div) O ut pu tV ol ta ge (m V) VIN = 2VPPG = −20dB G = −40dB 0.6 0.4 0.2 0 −0.2 −0.4 −0.6 HIGH GAIN PULSE RESPONSE Time (20ns/div) Ou tp ut Vo lta ge (V ) VIN = 10mVPPG = +40dB G = +20dB 1.2 1.0 0.8 0.6 0.4 0.2 0 −0.2 Time (20ns/div) GAIN CONTROL PULSE RESPONSE O u tp u tV o lta ge (V ) G = 0dB to −40dB, VIN = 1VDC G = 0dB to +40dB, VIN = 10mVDC 60 40 20 0 −20 −40 −60 −80 −100 GAIN vs CONTROL VOLTAGE Control Voltage, VC (V) G ai n (dB ) 0.5 0 −0.5 −1.0 −2.0−1.5 −2.5 Specified Operating Range Output Disabled for +0.15V ≤ VC ≤ +2V "� #$% SBOS275C − JUNE 2003 − REVISED OCTOBER 2004 www.ti.com 7 TYPICAL CHARACTERISTICS: VS = �5V continued RL = 500Ω and VIN = single-ended input on V+ with V− at ground, unless otherwise noted. −30 −35 −40 −45 −50 −55 −60 −65 −70 −75 HARMONIC DISTORTION vs FREQUENCY Frequency (MHz) H ar m on ic D is to rti on (dB c) 0.1 1 10 G = 0dB, 3rd−Harmonic G = +40dB, 3rd−Harmonic G = 0dB, 2nd−Harmonic G = +40dB, 2nd−Harmonic VO = 1VPP RL = 500Ω −20 −30 −40 −50 −60 −70 −80 HARMONIC DISTORTION vs RLOAD Load (Ω) H ar m on ic D is to rti on (dB c) 100 1000 G = 0dB, 3rd−Harmonic G = +40dB, 3rd−Harmonic G = 0dB, 2nd−Harmonic G = +40dB, 2nd−Harmonic f = 1MHz VO = 1VPP RL = 500Ω −20 −30 −40 −50 −60 −70 −80 −90 −100 HARMONIC DISTORTION vs OUTPUT VOLTAGE Output Voltage (VPP) H a rm o ni c D is to rti on (dB c) 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 G = 0dB, 3rd−Harmonic G = +40dB, 2nd−Harmonic G = 0dB, 2nd−Harmonic G = +40dB, 3rd−Harmonic f = 1MHz RL = 500Ω −20 −30 −40 −50 −60 −70 −80 HARMONIC DISTORTION vs GAIN Gain (dB) H ar m on ic D is to rti on (dB c) 0 5 10 15 20 25 30 35 40 3rd−Harmonic f = 1MHz VO = 1VPP RL = 500Ω 2nd−Harmonic 10 1 0.1 0.01 INPUT/OUTPUT RANGE vs GAIN Gain (dB) In pu t/O ut pu tV ol ta ge (V PP ) −40 −30 −20 −10 0 10 20 30 40 Max Useful Input Voltage Range Resulting Output Voltage Input and Output Measured at 1dB Compression Resulting Input Voltage Max Useful Output Voltage Range Input Limited Output Limited −20 −30 −40 −50 −60 −70 −80 HARMONIC DISTORTION vs ATTENUATION Attenuation (dB) H ar m on ic D is to rti on (dB c) −40 −35 −30 −25 −20 −15 −10 −5 0 f = 1MHz VIN = 1VPP RL = 500Ω 3rd−Harmonic 2nd−Harmonic "� #$% SBOS275C − JUNE 2003 − REVISED OCTOBER 2004 www.ti.com 8 TYPICAL CHARACTERISTICS: VS = �5V continued RL = 500Ω and VIN = single-ended input on V+ with V− at ground, unless otherwise noted. 10000 1000 100 10 1 NOISE DENSITY vs CONTROL VOLTAGE Control Voltage (V) e n (nv √ H z) e O (nv √ H z) 0 −0.2 −0.4 −0.6 −0.8 −1.0 −1.2 −1.4 −1.6 −1.8 −2.0 Input−Referred Voltage Noise Density Output−Referred Voltage Noise Density RS = 20Ω on Each Input 10 1 INPUT VOLTAGE AND CURRENT NOISE Frequency (Hz) e n (nv √ H z) i n (pA √ H z) 100 1k 10k 100k 1M 10M Current Noise (1.8pA/√Hz) Each Input Differential Input Voltage Noise (2.4nV/√Hz) 0 −20 −40 −60 −80 −100 −120 FULLY ATTENUATED ISOLATION vs FREQUENCY Frequency (Hz) Is o la tio n (dB ) 1M 10M 100M VC = +0.1V VC = +0.2V 50 40 30 20 10 0 −10 −20 −30 −40 −50 OUTPUT OFFSET VOLTAGE TOTAL ERROR BAND vs GAIN Gain (dB) Ou tp u tO ffs et Er ro r (m V) −40 −30 −20 −10 0 10 20 30 40 Maximum Error Band Typical Devices 0.4 0.3 0.2 0.1 0 −0.1 −0.2 −0.3 −0.4 −0.5 TYPICAL GAIN ERROR PLOT Control Voltage (V) Ga in Er ro r (dB ) 0 −0.5 −1 −1.5 −2 Deviation from −40dB/V Gain Slope 250 200 150 100 50 0 OUTPUT OFFSET VOLTAGE DISTRIBUTION Total Tested = 1462 G = +40dB Output Offset Voltage (mV) Co u n t < − 50 < − 45 < − 40 < − 35 < − 30 < − 25 < − 20 < − 15 < − 10 < − 5 < 0 < 5 < 10 < 15 < 20 < 25 < 30 < 35 < 40 < 45 < 50 > 50 "� #$% SBOS275C − JUNE 2003 − REVISED OCTOBER 2004 www.ti.com 9 TYPICAL CHARACTERISTICS: VS = �5V continued RL = 500Ω and VIN = single-ended input on V+ with V− at ground, unless otherwise noted. 10 9 8 7 6 5 4 GROUP DELAY vs GAIN Gain (dB) G ro u p D el ay (ns ) −40 −30 −20 −10 0 10 20 30 40 VO = 1VPP RL = 500Ω 1MHz 5MHz 10MHz 10 8 6 4 2 0 GROUP DELAY vs FREQUENCY Frequency (MHz) G ro u p D el a y (ns ) 1 10 100 VO = 1VPP RL = 500Ω G = 0dB G = +40dB 2.5 2.0 1.5 1.0 0.5 0 −0.5 −1.0 −1.5 −2.0 −2.5 OVERDRIVE RECOVERY AT MAXIMUM