Datasheet AD8479 - 4
| Description | Very High Common-Mode Voltage Precision Difference Amplifier |
| Pages / Page | 17 / 4 — Data Sheet. AD8479. SPECIFICATIONS. Table 1. A Grade. B Grade. Parameter. … |
| File Format / Size | PDF / 464 Kb |
| Document Language | English |
Data Sheet. AD8479. SPECIFICATIONS. Table 1. A Grade. B Grade. Parameter. Test Conditions/Comments Min. Typ. Max. Min. Unit
Model Line for this Datasheet
Text Version of Document
Data Sheet AD8479 SPECIFICATIONS
VS = ±15 V, REF(−) = REF(+) = 0 V, RL = 2 kΩ, TA = 25°C, unless otherwise noted.
Table 1. A Grade B Grade Parameter Test Conditions/Comments Min Typ Max Min Typ Max Unit
GAIN VOUT = ±10 V, RL = 2 kΩ Nominal Gain 1 1 V/V Gain Error 0.01 0.02 0.005 0.01 % Gain Nonlinearity 4 10 2 5 ppm Gain Drift TA = TMIN to TMAX 3 5 3 5 ppm/°C OFFSET VOLTAGE Offset Voltage VS = ±15 V 0.5 3 0.5 1 mV VS = ±5 V 0.5 3 0.5 1 mV Offset Voltage Drift TA = TMIN to TMAX 3 15 3 10 µV/°C Power Supply Rejection VS = ±2.5 V to ±15 V 84 100 90 100 dB Ratio (PSRR) INPUT Common-Mode Rejection VCM = ±600 V dc Ratio (CMRR) TA = 25°C 80 90 90 96 dB TA = TMIN to TMAX 80 90 dB VCM = 1200 V p-p, dc to 12 kHz 80 80 dB Operating Voltage Range Common-mode ±600 ±600 V Differential ±14.7 ±14.7 V Input Operating Common-mode 500 500 kΩ Impedance Differential 2 2 MΩ OUTPUT Output Voltage Swing RL = 2 kΩ −VS + 0.3 +VS − 0.3 −VS + 0.3 +VS − 0.3 V Output Short-Circuit ±55 ±55 mA Current Capacitive Load Stable operation 500 500 pF DYNAMIC RESPONSE Small Signal −3 dB 130 130 kHz Bandwidth Slew Rate 7.5 8 7.5 8 V/µs Full Power Bandwidth VOUT = 20 V p-p 100 100 kHz Settling Time 0.01%, VOUT = 10 V step 11 11 µs 0.001%, VCM = 10 V step 15.4 15.4 µs OUTPUT VOLTAGE NOISE 0.01 Hz to 10 Hz 30 35 30 35 µV p-p Noise Spectral Density f ≥ 100 Hz 1.6 1.6 μV/√Hz POWER SUPPLY Operating Voltage Range ±2.5 ±18 ±2.5 ±18 V Supply Current VOUT = 0 V 550 650 550 650 μA TA = TMIN to TMAX 850 850 μA TEMPERATURE RANGE Specified Performance TA = TMIN to TMAX −40 +85 −40 +85 °C Operational −40 +125 −40 +125 °C Rev. A | Page 3 of 16 Document Outline Features Applications Functional Block Diagram General Description Table of Contents Revision History Specifications Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Applications Information Basic Connections Single-Supply Operation System-Level Decoupling and Grounding Using a Large Shunt Resistor Output Filtering Gain of 60 Differential Amplifier Error Budget Analysis Example Outline Dimensions Ordering Guide
VS = ±15 V, REF(−) = REF(+) = 0 V, RL = 2 kΩ, TA = 25°C, unless otherwise noted.
Table 1. A Grade B Grade Parameter Test Conditions/Comments Min Typ Max Min Typ Max Unit
GAIN VOUT = ±10 V, RL = 2 kΩ Nominal Gain 1 1 V/V Gain Error 0.01 0.02 0.005 0.01 % Gain Nonlinearity 4 10 2 5 ppm Gain Drift TA = TMIN to TMAX 3 5 3 5 ppm/°C OFFSET VOLTAGE Offset Voltage VS = ±15 V 0.5 3 0.5 1 mV VS = ±5 V 0.5 3 0.5 1 mV Offset Voltage Drift TA = TMIN to TMAX 3 15 3 10 µV/°C Power Supply Rejection VS = ±2.5 V to ±15 V 84 100 90 100 dB Ratio (PSRR) INPUT Common-Mode Rejection VCM = ±600 V dc Ratio (CMRR) TA = 25°C 80 90 90 96 dB TA = TMIN to TMAX 80 90 dB VCM = 1200 V p-p, dc to 12 kHz 80 80 dB Operating Voltage Range Common-mode ±600 ±600 V Differential ±14.7 ±14.7 V Input Operating Common-mode 500 500 kΩ Impedance Differential 2 2 MΩ OUTPUT Output Voltage Swing RL = 2 kΩ −VS + 0.3 +VS − 0.3 −VS + 0.3 +VS − 0.3 V Output Short-Circuit ±55 ±55 mA Current Capacitive Load Stable operation 500 500 pF DYNAMIC RESPONSE Small Signal −3 dB 130 130 kHz Bandwidth Slew Rate 7.5 8 7.5 8 V/µs Full Power Bandwidth VOUT = 20 V p-p 100 100 kHz Settling Time 0.01%, VOUT = 10 V step 11 11 µs 0.001%, VCM = 10 V step 15.4 15.4 µs OUTPUT VOLTAGE NOISE 0.01 Hz to 10 Hz 30 35 30 35 µV p-p Noise Spectral Density f ≥ 100 Hz 1.6 1.6 μV/√Hz POWER SUPPLY Operating Voltage Range ±2.5 ±18 ±2.5 ±18 V Supply Current VOUT = 0 V 550 650 550 650 μA TA = TMIN to TMAX 850 850 μA TEMPERATURE RANGE Specified Performance TA = TMIN to TMAX −40 +85 −40 +85 °C Operational −40 +125 −40 +125 °C Rev. A | Page 3 of 16 Document Outline Features Applications Functional Block Diagram General Description Table of Contents Revision History Specifications Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Applications Information Basic Connections Single-Supply Operation System-Level Decoupling and Grounding Using a Large Shunt Resistor Output Filtering Gain of 60 Differential Amplifier Error Budget Analysis Example Outline Dimensions Ordering Guide
