Datasheet AD8426 (Analog Devices) - 3
| 制造商 | Analog Devices |
| 描述 | Wide Supply Range, Rail-to-Rail Output Instrumentation Amplifier |
| 页数 / 页 | 28 / 3 — AD8426. SPECIFICATIONS DUAL-SUPPLY OPERATION. Table 2. Test Conditions/. … |
| 文件格式/大小 | PDF / 818 Kb |
| 文件语言 | 英语 |
AD8426. SPECIFICATIONS DUAL-SUPPLY OPERATION. Table 2. Test Conditions/. A Grade. B Grade. Parameter. Comments. Min. Typ. Max. Unit
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AD8426 SPECIFICATIONS DUAL-SUPPLY OPERATION
+VS = +15 V, −VS = −15 V, VREF = 0 V, TA = 25°C, G = 1, RL = 10 kΩ, specifications referred to input, unless otherwise noted.
Table 2. Test Conditions/ A Grade B Grade Parameter Comments Min Typ Max Min Typ Max Unit
COMMON-MODE REJECTION VCM = −10 V to +10 V RATIO (CMRR) CMRR, DC to 60 Hz G = 1 80 90 dB G = 10 100 105 dB G = 100 105 110 dB G = 1000 105 110 dB CMRR at 5 kHz G = 1 80 80 dB G = 10 90 90 dB G = 100 90 90 dB G = 1000 100 100 dB NOISE Total noise: e 2 N = √(eNI + (eNO/G)2) Voltage Noise f = 1 kHz Input Voltage Noise, eNI 24 27 24 27 nV/√Hz Output Voltage Noise, eNO 120 125 120 125 nV/√Hz RTI Noise 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 0.4 0.4 μV p-p Current Noise f = 1 kHz 100 100 fA/√Hz f = 0.1 Hz to 10 Hz 3 3 pA p-p VOLTAGE OFFSET Total offset voltage: VOS = VOSI + (VOSO/G) Input Offset, VOSI VS = ±5 V to ±15 V 200 100 μV Average Temperature TA = −40°C to +125°C 0.5 2 0.5 1 μV/°C Coefficient Output Offset, VOSO VS = ±5 V to ±15 V 1000 500 μV Average Temperature TA = −40°C to +125°C 2 10 1 5 μV/°C Coefficient Offset RTI vs. Supply (PSR) VS = ±5 V to ±15 V G = 1 80 90 dB G = 10 100 105 dB G = 100 105 110 dB G = 1000 105 110 dB INPUT CURRENT Input Bias Current1 TA = +25°C 5 20 27 5 20 27 nA TA = +125°C 5 15 25 5 15 25 nA TA = −40°C 5 30 35 5 30 35 nA Average Temperature TA = −40°C to +125°C 70 70 pA/°C Coefficient Input Offset Current TA = +25°C 1.5 0.5 nA TA = +125°C 1.5 0.5 nA TA = −40°C 2 0.5 nA Average Temperature TA = −40°C to +125°C 5 5 pA/°C Coefficient Rev. 0 | Page 3 of 28 Document Outline FEATURES APPLICATIONS CONNECTION DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS DUAL-SUPPLY OPERATION Dynamic Performance Specifications SINGLE-SUPPLY OPERATION Dynamic Performance Specifications ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION ARCHITECTURE GAIN SELECTION REFERENCE TERMINAL INPUT VOLTAGE RANGE LAYOUT Package Considerations Hidden Paddle Package Common-Mode Rejection Ratio over Frequency Power Supplies References INPUT BIAS CURRENT RETURN PATH INPUT PROTECTION RADIO FREQUENCY INTERFERENCE (RFI) APPLICATIONS INFORMATION PRECISION STRAIN GAGE DIFFERENTIAL DRIVE Differential Output Using Both AD8426 Amplifiers 2-Channel Differential Output Using a Dual Op Amp Tips for Best Differential Output Performance DRIVING A CABLE DRIVING AN ADC OUTLINE DIMENSIONS ORDERING GUIDE
AD8426 SPECIFICATIONS DUAL-SUPPLY OPERATION
+VS = +15 V, −VS = −15 V, VREF = 0 V, TA = 25°C, G = 1, RL = 10 kΩ, specifications referred to input, unless otherwise noted.
Table 2. Test Conditions/ A Grade B Grade Parameter Comments Min Typ Max Min Typ Max Unit
COMMON-MODE REJECTION VCM = −10 V to +10 V RATIO (CMRR) CMRR, DC to 60 Hz G = 1 80 90 dB G = 10 100 105 dB G = 100 105 110 dB G = 1000 105 110 dB CMRR at 5 kHz G = 1 80 80 dB G = 10 90 90 dB G = 100 90 90 dB G = 1000 100 100 dB NOISE Total noise: e 2 N = √(eNI + (eNO/G)2) Voltage Noise f = 1 kHz Input Voltage Noise, eNI 24 27 24 27 nV/√Hz Output Voltage Noise, eNO 120 125 120 125 nV/√Hz RTI Noise 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 0.4 0.4 μV p-p Current Noise f = 1 kHz 100 100 fA/√Hz f = 0.1 Hz to 10 Hz 3 3 pA p-p VOLTAGE OFFSET Total offset voltage: VOS = VOSI + (VOSO/G) Input Offset, VOSI VS = ±5 V to ±15 V 200 100 μV Average Temperature TA = −40°C to +125°C 0.5 2 0.5 1 μV/°C Coefficient Output Offset, VOSO VS = ±5 V to ±15 V 1000 500 μV Average Temperature TA = −40°C to +125°C 2 10 1 5 μV/°C Coefficient Offset RTI vs. Supply (PSR) VS = ±5 V to ±15 V G = 1 80 90 dB G = 10 100 105 dB G = 100 105 110 dB G = 1000 105 110 dB INPUT CURRENT Input Bias Current1 TA = +25°C 5 20 27 5 20 27 nA TA = +125°C 5 15 25 5 15 25 nA TA = −40°C 5 30 35 5 30 35 nA Average Temperature TA = −40°C to +125°C 70 70 pA/°C Coefficient Input Offset Current TA = +25°C 1.5 0.5 nA TA = +125°C 1.5 0.5 nA TA = −40°C 2 0.5 nA Average Temperature TA = −40°C to +125°C 5 5 pA/°C Coefficient Rev. 0 | Page 3 of 28 Document Outline FEATURES APPLICATIONS CONNECTION DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS DUAL-SUPPLY OPERATION Dynamic Performance Specifications SINGLE-SUPPLY OPERATION Dynamic Performance Specifications ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION ARCHITECTURE GAIN SELECTION REFERENCE TERMINAL INPUT VOLTAGE RANGE LAYOUT Package Considerations Hidden Paddle Package Common-Mode Rejection Ratio over Frequency Power Supplies References INPUT BIAS CURRENT RETURN PATH INPUT PROTECTION RADIO FREQUENCY INTERFERENCE (RFI) APPLICATIONS INFORMATION PRECISION STRAIN GAGE DIFFERENTIAL DRIVE Differential Output Using Both AD8426 Amplifiers 2-Channel Differential Output Using a Dual Op Amp Tips for Best Differential Output Performance DRIVING A CABLE DRIVING AN ADC OUTLINE DIMENSIONS ORDERING GUIDE