Datasheet ADA4940-2 (Analog Devices) - 7

Data Sheet ADA4940-1/ADA4940-2 VOCM to VOUT, cm Performance Table 7. Parameter Test Conditions/Comments Min Typ Max Unit
VOCM DYNAMIC PERFORMANCE −3 dB Small Signal Bandwidth VOUT, cm = 0.1 V p-p 36 MHz −3 dB Large Signal Bandwidth VOUT, cm = 1 V p-p 26 MHz Slew Rate VOUT, cm = 1 V p-p 48 V/µs Input Voltage Noise f = 100 kHz 92 nV/√Hz Gain ΔVOUT, cm/ΔVOCM, ΔVOCM = ±0.25 V 0.99 1 1.01 V/V VOCM CHARACTERISTICS Input Common-Mode Voltage Range −VS + 0.8 to V +VS − 0.7 Input Resistance 250 kΩ Offset Voltage VOS, cm = VOUT, cm − VOCM; VIP = VIN = VOCM = 1.5 V −7 ±1 +7 mV Input Offset Voltage Drift TMIN to TMAX 20 µV/°C Input Bias Current −5 +1 +5 µA CMRR ΔVOS,dm/ΔVOCM, ΔVOCM = ±0.25 V 80 100 dB
General Performance Table 8. Parameter Test Conditions/Comments Min Typ Max Unit
POWER SUPPLY Operating Range LFCSP 3 7 V SOIC 3 6 V Quiescent Current per Amplifier Enabled 1 1.18 1.33 mA TMIN to TMAX 4.25 µA/°C Disabled 7 22 µA +PSRR ΔVOS, dm/ΔVS, ΔVS = 0.25 V p-p 80 90 dB −PSRR ΔVOS, dm/ΔVS, ΔVS = 0.25 V p-p 80 96 dB DISABLE (DISABLE PIN) DISABLE Input Voltage Disabled ≤(−VS + 1) V Enabled ≥(−VS + 1.8) V Turn-Off Time 16 µs Turn-On Time 0.6 µs DISABLE Pin Bias Current per Amplifier Enabled DISABLE = +3 V 0.3 1 µA Disabled DISABLE = 0 V −6 −3 µA OPERATING TEMPERATURE RANGE −40 +125 °C Rev. C | Page 7 of 32 Document Outline Features Applications General Description Functional Block Diagrams Revision History Specifications VS = 5 V +DIN or –DIN to VOUT, dm Performance VOCM to VOUT, cm Performance General Performance VS = 3 V +DIN or –DIN to VOUT, dm Performance VOCM to VOUT, cm Performance General Performance Absolute Maximum Ratings Thermal Resistance Maximum Power Dissipation ESD Caution Pin Configurations and Function Descriptions Typical Performance Characteristics Test Circuits Terminology Definition of Terms Differential Voltage Common-Mode Voltage (CMV) Common-Mode Offset Voltage Differential VOS, Differential CMRR, and VOCM CMRR Balance Theory of Operation Applications Information Analyzing an Application Circuit Setting the Closed-Loop Gain Estimating the Output Noise Voltage Impact of Mismatches in the Feedback Networks Calculating the Input Impedance of an Application Circuit Terminating a Single-Ended Input Input Common-Mode Voltage Range Input and Output Capacitive AC Coupling Setting the Output Common-Mode Voltage DISABLE Pin Driving a Capacitive Load Driving a High Precision ADC Layout, Grounding, and Bypassing ADA4940-1 LFCSP Example Outline Dimensions Ordering Guide