Datasheet AD8429 (Analog Devices) - 3
| Manufacturer | Analog Devices |
| Description | 1 nV/√Hz Low Noise Instrumentation Amplifier |
| Pages / Page | 20 / 3 — Data Sheet. AD8429. SPECIFICATIONS. Table 1. A Grade. B Grade. Parameter. … |
| Revision | A |
| File Format / Size | PDF / 668 Kb |
| Document Language | English |
Data Sheet. AD8429. SPECIFICATIONS. Table 1. A Grade. B Grade. Parameter. Test Conditions/Comments. Min. Typ. Max. Unit
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Data Sheet AD8429 SPECIFICATIONS
VS = ±15 V, VREF = 0 V, TA = 25°C, G = 1, RL = 10 kΩ, unless otherwise noted.
Table 1. A Grade B Grade Parameter Test Conditions/Comments Min Typ Max Min Typ Max Unit
COMMON-MODE REJECTION RATIO (CMRR) CMRR DC to 60 Hz with 1 kΩ VCM = ±10 V Source Imbalance G = 1 80 90 dB G = 10 100 110 dB G = 100 120 130 dB G = 1000 134 140 dB CMRR at 5 kHz VCM = ±10 V G = 1 76 80 dB G = 10 90 90 dB G = 100 90 90 dB G = 1000 90 90 dB VOLTAGE NOISE, RTI VIN+, VIN− = 0 V Spectral Density1: 1 kHz Input Voltage Noise, eni 1.0 1.0 nV/√Hz Output Voltage Noise, eno 45 45 nV/√Hz Peak to Peak: 0.1 Hz to 10 Hz G = 1 2 2 µV p-p G = 1000 100 100 nV p-p CURRENT NOISE Spectral Density: 1 kHz 1.5 1.5 pA/√Hz Peak to Peak: 0.1 Hz to 10 Hz 100 100 pA p-p VOLTAGE OFFSET2 Input Offset, VOSI 150 50 µV Average TC 0.1 1 0.1 0.3 µV/°C Output Offset, VOSO 1000 500 µV Average TC 3 10 3 10 µV/°C Offset RTI vs. Supply (PSR) VS = ±5 V to ±15 V G = 1 90 100 dB G = 10 110 120 dB G = 100 130 130 dB G = 1000 130 130 dB INPUT CURRENT VIN+, VIN− = 0 V Input Bias Current 300 150 nA Average TC 250 250 pA/°C Input Offset Current 100 30 nA Average TC 15 15 pA/°C DYNAMIC RESPONSE Small Signal Bandwidth: –3 dB G = 1 15 15 MHz G = 10 4 4 MHz G = 100 1.2 1.2 MHz G = 1000 0.15 0.15 MHz Rev. A | Page 3 of 20 Document Outline FEATURES APPLICATIONS PIN CONNECTION DIAGRAM GENERAL DESCRIPTION REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION ARCHITECTURE RG Power Dissipation REFERENCE TERMINAL INPUT VOLTAGE RANGE LAYOUT Common-Mode Rejection Ratio over Frequency Power Supplies and Grounding Reference Pin INPUT BIAS CURRENT RETURN PATH INPUT PROTECTION Input Voltages Beyond the Rails Large Differential Input Voltage at High Gain IMAX RADIO FREQUENCY INTERFERENCE (RFI) CALCULATING THE NOISE OF THE INPUT STAGE Source Resistance Noise Voltage Noise of the Instrumentation Amplifier Current Noise of the Instrumentation Amplifier Total Noise Density Calculation OUTLINE DIMENSIONS ORDERING GUIDE
Data Sheet AD8429 SPECIFICATIONS
VS = ±15 V, VREF = 0 V, TA = 25°C, G = 1, RL = 10 kΩ, unless otherwise noted.
Table 1. A Grade B Grade Parameter Test Conditions/Comments Min Typ Max Min Typ Max Unit
COMMON-MODE REJECTION RATIO (CMRR) CMRR DC to 60 Hz with 1 kΩ VCM = ±10 V Source Imbalance G = 1 80 90 dB G = 10 100 110 dB G = 100 120 130 dB G = 1000 134 140 dB CMRR at 5 kHz VCM = ±10 V G = 1 76 80 dB G = 10 90 90 dB G = 100 90 90 dB G = 1000 90 90 dB VOLTAGE NOISE, RTI VIN+, VIN− = 0 V Spectral Density1: 1 kHz Input Voltage Noise, eni 1.0 1.0 nV/√Hz Output Voltage Noise, eno 45 45 nV/√Hz Peak to Peak: 0.1 Hz to 10 Hz G = 1 2 2 µV p-p G = 1000 100 100 nV p-p CURRENT NOISE Spectral Density: 1 kHz 1.5 1.5 pA/√Hz Peak to Peak: 0.1 Hz to 10 Hz 100 100 pA p-p VOLTAGE OFFSET2 Input Offset, VOSI 150 50 µV Average TC 0.1 1 0.1 0.3 µV/°C Output Offset, VOSO 1000 500 µV Average TC 3 10 3 10 µV/°C Offset RTI vs. Supply (PSR) VS = ±5 V to ±15 V G = 1 90 100 dB G = 10 110 120 dB G = 100 130 130 dB G = 1000 130 130 dB INPUT CURRENT VIN+, VIN− = 0 V Input Bias Current 300 150 nA Average TC 250 250 pA/°C Input Offset Current 100 30 nA Average TC 15 15 pA/°C DYNAMIC RESPONSE Small Signal Bandwidth: –3 dB G = 1 15 15 MHz G = 10 4 4 MHz G = 100 1.2 1.2 MHz G = 1000 0.15 0.15 MHz Rev. A | Page 3 of 20 Document Outline FEATURES APPLICATIONS PIN CONNECTION DIAGRAM GENERAL DESCRIPTION REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION ARCHITECTURE RG Power Dissipation REFERENCE TERMINAL INPUT VOLTAGE RANGE LAYOUT Common-Mode Rejection Ratio over Frequency Power Supplies and Grounding Reference Pin INPUT BIAS CURRENT RETURN PATH INPUT PROTECTION Input Voltages Beyond the Rails Large Differential Input Voltage at High Gain IMAX RADIO FREQUENCY INTERFERENCE (RFI) CALCULATING THE NOISE OF THE INPUT STAGE Source Resistance Noise Voltage Noise of the Instrumentation Amplifier Current Noise of the Instrumentation Amplifier Total Noise Density Calculation OUTLINE DIMENSIONS ORDERING GUIDE
