Datasheet AD8295 (Analog Devices) - 3
| Manufacturer | Analog Devices |
| Description | Precision Instrumentation Amplifier with Signal Processing Amplifiers |
| Pages / Page | 28 / 3 — AD8295. SPECIFICATIONS INSTRUMENTATION AMPLIFIER SPECIFICATIONS, … |
| Revision | A |
| File Format / Size | PDF / 684 Kb |
| Document Language | English |
AD8295. SPECIFICATIONS INSTRUMENTATION AMPLIFIER SPECIFICATIONS, SINGLE-ENDED AND DIFFERENTIAL OUTPUT CONFIGURATIONS
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AD8295 SPECIFICATIONS INSTRUMENTATION AMPLIFIER SPECIFICATIONS, SINGLE-ENDED AND DIFFERENTIAL OUTPUT CONFIGURATIONS
VS = ±15 V, VREF = 0 V, TA = 25°C, G = 1, RL = 2 kΩ, unless otherwise noted. The differential configuration is shown in Figure 65.
Table 2. A Grade B Grade Parameter Test Conditions Min Typ Max Min Typ Max Unit
COMMON-MODE REJECTION VCM = −10 V to +10 V RATIO (CMRR) CMRR, DC to 60 Hz 1 kΩ source imbalance G = 1 80 90 dB G = 10 100 110 dB G = 100 120 130 dB G = 1000 130 140 dB CMRR at 8 kHz G = 1 80 80 dB G = 10 90 100 dB G = 100 100 120 dB G = 1000 110 120 dB NOISE Voltage Noise, 1 kHz RTI noise = √(e 2 NI + (eNO/G)2) Input Voltage Noise, eNI VIN+, VIN−, VREF = 0 V 8 8 nV/√Hz Output Voltage Noise, eNO VIN+, VIN−, VREF = 0 V 75 75 nV/√Hz RTI f = 0.1 Hz to 10 Hz G = 1 2 2 μV p-p G = 10 0.5 0.5 μV p-p G = 100 to 1000 0.25 0.25 μV p-p Current Noise f = 1 kHz 40 40 fA/√Hz f = 0.1 Hz to 10 Hz 6 6 pA p-p VOLTAGE OFFSET RTI VOS = VOSI + (VOSO/G) Input Offset Voltage, VOSI VS = ±5 V to ±15 V 120 60 μV Over Temperature TA = −40°C to +85°C 150 80 μV Average TC 0.4 0.3 μV/°C Output Offset Voltage, VOSO VS = ±5 V to ±15 V 500 350 μV Over Temperature TA = −40°C to +85°C 0.8 0.5 mV Average TC 9 5 μV/°C Offset RTI vs. Supply (PSR) VS = ±2.3 V to ±18 V G = 1 90 110 94 110 dB G = 10 110 120 114 130 dB G = 100 124 130 130 140 dB G = 1000 130 140 140 150 dB INPUT CURRENT Input Bias Current 0.5 2.0 0.2 0.8 nA Over Temperature TA = −40°C to +85°C 3.0 1.5 nA Average TC 1 1 pA/°C Input Offset Current 0.2 1 0.1 0.5 nA Over Temperature TA = −40°C to +85°C 1.5 0.6 nA Average TC 1 0.5 2 pA/°C Rev. A | Page 3 of 28 Document Outline FEATURES APPLICATIONS CONNECTION DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS INSTRUMENTATION AMPLIFIER SPECIFICATIONS, SINGLE-ENDED AND DIFFERENTIAL OUTPUT CONFIGURATIONS OP AMP SPECIFICATIONS INTERNAL RESISTOR NETWORK POWER AND TEMPERATURE SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL CHARACTERISTICS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS IN-AMP OP AMPS SYSTEM THEORY OF OPERATION UNCOMMITTED OP AMPS INSTRUMENTATION AMPLIFIER Gain Selection Common-Mode Input Voltage Range Reference Terminal LAYOUT Routing and Vias Common-Mode Rejection over Frequency Unused Op Amps Reference Power Supplies INPUT PROTECTION INPUT BIAS CURRENT RETURN PATH RF INTERFERENCE DIFFERENTIAL OUTPUT APPLICATIONS INFORMATION CREATING A REFERENCE VOLTAGE AT MIDSCALE HIGH ACCURACY G = −1 CONFIGURATION WITH LOW-PASS FILTER TWO-POLE SALLEN-KEY FILTER AC-COUPLED INSTRUMENTATION AMPLIFIER DRIVING DIFFERENTIAL ADCs OUTLINE DIMENSIONS ORDERING GUIDE
AD8295 SPECIFICATIONS INSTRUMENTATION AMPLIFIER SPECIFICATIONS, SINGLE-ENDED AND DIFFERENTIAL OUTPUT CONFIGURATIONS
VS = ±15 V, VREF = 0 V, TA = 25°C, G = 1, RL = 2 kΩ, unless otherwise noted. The differential configuration is shown in Figure 65.
Table 2. A Grade B Grade Parameter Test Conditions Min Typ Max Min Typ Max Unit
COMMON-MODE REJECTION VCM = −10 V to +10 V RATIO (CMRR) CMRR, DC to 60 Hz 1 kΩ source imbalance G = 1 80 90 dB G = 10 100 110 dB G = 100 120 130 dB G = 1000 130 140 dB CMRR at 8 kHz G = 1 80 80 dB G = 10 90 100 dB G = 100 100 120 dB G = 1000 110 120 dB NOISE Voltage Noise, 1 kHz RTI noise = √(e 2 NI + (eNO/G)2) Input Voltage Noise, eNI VIN+, VIN−, VREF = 0 V 8 8 nV/√Hz Output Voltage Noise, eNO VIN+, VIN−, VREF = 0 V 75 75 nV/√Hz RTI f = 0.1 Hz to 10 Hz G = 1 2 2 μV p-p G = 10 0.5 0.5 μV p-p G = 100 to 1000 0.25 0.25 μV p-p Current Noise f = 1 kHz 40 40 fA/√Hz f = 0.1 Hz to 10 Hz 6 6 pA p-p VOLTAGE OFFSET RTI VOS = VOSI + (VOSO/G) Input Offset Voltage, VOSI VS = ±5 V to ±15 V 120 60 μV Over Temperature TA = −40°C to +85°C 150 80 μV Average TC 0.4 0.3 μV/°C Output Offset Voltage, VOSO VS = ±5 V to ±15 V 500 350 μV Over Temperature TA = −40°C to +85°C 0.8 0.5 mV Average TC 9 5 μV/°C Offset RTI vs. Supply (PSR) VS = ±2.3 V to ±18 V G = 1 90 110 94 110 dB G = 10 110 120 114 130 dB G = 100 124 130 130 140 dB G = 1000 130 140 140 150 dB INPUT CURRENT Input Bias Current 0.5 2.0 0.2 0.8 nA Over Temperature TA = −40°C to +85°C 3.0 1.5 nA Average TC 1 1 pA/°C Input Offset Current 0.2 1 0.1 0.5 nA Over Temperature TA = −40°C to +85°C 1.5 0.6 nA Average TC 1 0.5 2 pA/°C Rev. A | Page 3 of 28 Document Outline FEATURES APPLICATIONS CONNECTION DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS INSTRUMENTATION AMPLIFIER SPECIFICATIONS, SINGLE-ENDED AND DIFFERENTIAL OUTPUT CONFIGURATIONS OP AMP SPECIFICATIONS INTERNAL RESISTOR NETWORK POWER AND TEMPERATURE SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL CHARACTERISTICS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS IN-AMP OP AMPS SYSTEM THEORY OF OPERATION UNCOMMITTED OP AMPS INSTRUMENTATION AMPLIFIER Gain Selection Common-Mode Input Voltage Range Reference Terminal LAYOUT Routing and Vias Common-Mode Rejection over Frequency Unused Op Amps Reference Power Supplies INPUT PROTECTION INPUT BIAS CURRENT RETURN PATH RF INTERFERENCE DIFFERENTIAL OUTPUT APPLICATIONS INFORMATION CREATING A REFERENCE VOLTAGE AT MIDSCALE HIGH ACCURACY G = −1 CONFIGURATION WITH LOW-PASS FILTER TWO-POLE SALLEN-KEY FILTER AC-COUPLED INSTRUMENTATION AMPLIFIER DRIVING DIFFERENTIAL ADCs OUTLINE DIMENSIONS ORDERING GUIDE
