Datasheet AD8479 (Analog Devices) - 3
| Manufacturer | Analog Devices |
| Description | Very High Common-Mode Voltage Precision Difference Amplifier |
| Pages / Page | 17 / 3 — Data Sheet. AD8479. SPECIFICATIONS. Table 1. A Grade. B Grade. Parameter. … |
| Revision | C |
| File Format / Size | PDF / 396 Kb |
| Document Language | English |
Data Sheet. AD8479. SPECIFICATIONS. Table 1. A Grade. B Grade. Parameter. Test Conditions/Comments. Min. Typ. Max. Unit
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Data Sheet AD8479 SPECIFICATIONS
VS = ±15 V, REF(−) = REF(+) = 0 V, RL = 2 kΩ, common-mode voltage (VCM) = 0 V, ambient temperature (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 Nominal Gain 1 1 V/V Gain Error1 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 ±18 V 84 100 90 100 dB Ratio (PSRR) INPUT Common-Mode Rejection Ratio (CMRR)2 TA = 25°C, VCM = ±10 V 80 90 90 96 dB Junction temperature (TJ) = 25°C, 80 90 90 96 dB VCM = ±600 V TJ = 25°C, VCM = 1200 V p-p, dc to 80 80 dB 6 kHz CMRR Drift2 TJ = TMIN to TMAX −0.3 ±1.5 −0.25 ±1.3 ppm/°C 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 −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 310 310 kHz Bandwidth Slew Rate 8.8 8.8 V/µs Full Power Bandwidth VOUT = 20 V p-p 140 140 kHz Settling Time 0.01%, VOUT = 10 V step 5.9 5.9 µs 0.001%, VOUT = 10 V step 8.7 8.7 µs OUTPUT VOLTAGE NOISE 0.1 Hz to 10 Hz 30 40 30 40 µV p-p Noise Spectral Density 100 Hz ≤ f ≤ 100 kHz 1.6 1.6 μV/√Hz Rev. C | Page 3 of 17 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE 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
Data Sheet AD8479 SPECIFICATIONS
VS = ±15 V, REF(−) = REF(+) = 0 V, RL = 2 kΩ, common-mode voltage (VCM) = 0 V, ambient temperature (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 Nominal Gain 1 1 V/V Gain Error1 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 ±18 V 84 100 90 100 dB Ratio (PSRR) INPUT Common-Mode Rejection Ratio (CMRR)2 TA = 25°C, VCM = ±10 V 80 90 90 96 dB Junction temperature (TJ) = 25°C, 80 90 90 96 dB VCM = ±600 V TJ = 25°C, VCM = 1200 V p-p, dc to 80 80 dB 6 kHz CMRR Drift2 TJ = TMIN to TMAX −0.3 ±1.5 −0.25 ±1.3 ppm/°C 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 −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 310 310 kHz Bandwidth Slew Rate 8.8 8.8 V/µs Full Power Bandwidth VOUT = 20 V p-p 140 140 kHz Settling Time 0.01%, VOUT = 10 V step 5.9 5.9 µs 0.001%, VOUT = 10 V step 8.7 8.7 µs OUTPUT VOLTAGE NOISE 0.1 Hz to 10 Hz 30 40 30 40 µV p-p Noise Spectral Density 100 Hz ≤ f ≤ 100 kHz 1.6 1.6 μV/√Hz Rev. C | Page 3 of 17 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE 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
