Datasheet AD8228 (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | Low Gain Drift Precision Instrumentation Amplifier Fixed G = 10, 100 |
| 页数 / 页 | 25 / 4 — AD8228. SPECIFICATIONS GAIN = 10. Table 2. Conditions. A Grade. B Grade. … |
| 文件格式/大小 | PDF / 492 Kb |
| 文件语言 | 英语 |
AD8228. SPECIFICATIONS GAIN = 10. Table 2. Conditions. A Grade. B Grade. Parameter. (Gain = 10). Min. Typ. Max. Unit
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AD8228
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AD8228 SPECIFICATIONS GAIN = 10
VS = ±15 V, VREF = 0 V, TA = 25°C, RL = 2 kΩ, all specifications referred to input, unless otherwise noted.
Table 2. Conditions A Grade B Grade Parameter (Gain = 10) Min Typ Max Min Typ Max Unit
COMMON-MODE REJECTION RATIO CMRR DC to 60 Hz with 1 kΩ VCM = −10 V to +10 V 94 100 dB Source Imbalance CMRR at 2 kHz VCM = −10 V to +10 V 90 100 dB NOISE VIN+ = VIN− = VREF = 0 V Voltage Noise f = 1 kHz 15 15 nV/√Hz f = 0.1 Hz to 10 Hz 0.5 0.5 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 Referred to input, VS = ±5 V to ±15 V Offset 90 50 μV Over Temperature T = −40°C to +85°C 180 100 μV Average TC T = −40°C to +85°C 1.5 0.8 μV/°C Offset vs. Supply (PSR) 104 120 106 120 dB INPUT CURRENT Input Bias Current 0.5 1.5 0.4 0.6 nA Over Temperature T = −40°C to +85°C 2.0 1 nA Average TC T = −40°C to +85°C 1 1 pA/°C Input Offset Current 0.2 0.6 0.1 0.4 nA Over Temperature T = −40°C to +85°C 0.8 0.6 nA Average TC T = −40°C to +85°C 1 1 pA/°C REFERENCE INPUT RIN 20 20 kΩ IIN VIN+ = VIN− = VREF = 0 V 50 60 50 60 μA Voltage Range −VS +VS −VS +VS V Gain to Output 1 ± 0.0001 1 ± 0.0001 V/V DYNAMIC RESPONSE Small Signal −3 dB Bandwidth 650 650 kHz Settling Time 0.01% 10 V step 6 6 μs Settling Time 0.001% 10 V step 9 9 μs Slew Rate 2 2.5 2 2.5 V/μs GAIN VOUT = −10 V to +10 V Gain Error 0.07 0.02 % Gain Nonlinearity RL = 10 kΩ 3 10 3 10 ppm RL = 2 kΩ 3 10 3 10 ppm Gain vs. Temperature 1 10 1 2 ppm/°C INPUT Input Impedance Differential 100||2 100||2 GΩ||pF Common Mode 100||2 100||2 GΩ||pF Input Operating Voltage Range1 VS = ±2.3 V to ±5 V −VS + 1.9 +VS − 1.1 −VS + 1.9 +VS − 1.1 V Over Temperature T = −40°C to +85°C −VS + 2.0 +VS − 1.2 −VS + 2.0 +VS − 1.2 V Input Operating Voltage Range1 VS = ±5 V to ±18 V −VS + 1.9 +VS − 1.2 −VS + 1.9 +VS − 1.2 V Over Temperature T = −40°C to +85°C −VS + 2.0 +VS − 1.2 −VS + 2.0 +VS − 1.2 V Rev. 0 | Page 3 of 24 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION CONNECTION DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS GAIN = 10 GAIN = 100 ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION ARCHITECTURE SETTING THE GAIN COMMON-MODE INPUT VOLTAGE RANGE REFERENCE TERMINAL LAYOUT Common-Mode Rejection Ratio over Frequency Power Supplies References Input Bias Current Return Path INPUT PROTECTION Input Voltages Beyond the Rails Large Differential Voltages When G = 100 RADIO FREQUENCY INTERFERENCE (RFI) APPLICATIONS INFORMATION DIFFERENTIAL DRIVE PRECISION STRAIN GAGE DRIVING A DIFFERENTIAL ADC OUTLINE DIMENSIONS ORDERING GUIDE
AD8228 SPECIFICATIONS GAIN = 10
VS = ±15 V, VREF = 0 V, TA = 25°C, RL = 2 kΩ, all specifications referred to input, unless otherwise noted.
Table 2. Conditions A Grade B Grade Parameter (Gain = 10) Min Typ Max Min Typ Max Unit
COMMON-MODE REJECTION RATIO CMRR DC to 60 Hz with 1 kΩ VCM = −10 V to +10 V 94 100 dB Source Imbalance CMRR at 2 kHz VCM = −10 V to +10 V 90 100 dB NOISE VIN+ = VIN− = VREF = 0 V Voltage Noise f = 1 kHz 15 15 nV/√Hz f = 0.1 Hz to 10 Hz 0.5 0.5 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 Referred to input, VS = ±5 V to ±15 V Offset 90 50 μV Over Temperature T = −40°C to +85°C 180 100 μV Average TC T = −40°C to +85°C 1.5 0.8 μV/°C Offset vs. Supply (PSR) 104 120 106 120 dB INPUT CURRENT Input Bias Current 0.5 1.5 0.4 0.6 nA Over Temperature T = −40°C to +85°C 2.0 1 nA Average TC T = −40°C to +85°C 1 1 pA/°C Input Offset Current 0.2 0.6 0.1 0.4 nA Over Temperature T = −40°C to +85°C 0.8 0.6 nA Average TC T = −40°C to +85°C 1 1 pA/°C REFERENCE INPUT RIN 20 20 kΩ IIN VIN+ = VIN− = VREF = 0 V 50 60 50 60 μA Voltage Range −VS +VS −VS +VS V Gain to Output 1 ± 0.0001 1 ± 0.0001 V/V DYNAMIC RESPONSE Small Signal −3 dB Bandwidth 650 650 kHz Settling Time 0.01% 10 V step 6 6 μs Settling Time 0.001% 10 V step 9 9 μs Slew Rate 2 2.5 2 2.5 V/μs GAIN VOUT = −10 V to +10 V Gain Error 0.07 0.02 % Gain Nonlinearity RL = 10 kΩ 3 10 3 10 ppm RL = 2 kΩ 3 10 3 10 ppm Gain vs. Temperature 1 10 1 2 ppm/°C INPUT Input Impedance Differential 100||2 100||2 GΩ||pF Common Mode 100||2 100||2 GΩ||pF Input Operating Voltage Range1 VS = ±2.3 V to ±5 V −VS + 1.9 +VS − 1.1 −VS + 1.9 +VS − 1.1 V Over Temperature T = −40°C to +85°C −VS + 2.0 +VS − 1.2 −VS + 2.0 +VS − 1.2 V Input Operating Voltage Range1 VS = ±5 V to ±18 V −VS + 1.9 +VS − 1.2 −VS + 1.9 +VS − 1.2 V Over Temperature T = −40°C to +85°C −VS + 2.0 +VS − 1.2 −VS + 2.0 +VS − 1.2 V Rev. 0 | Page 3 of 24 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION CONNECTION DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS GAIN = 10 GAIN = 100 ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION ARCHITECTURE SETTING THE GAIN COMMON-MODE INPUT VOLTAGE RANGE REFERENCE TERMINAL LAYOUT Common-Mode Rejection Ratio over Frequency Power Supplies References Input Bias Current Return Path INPUT PROTECTION Input Voltages Beyond the Rails Large Differential Voltages When G = 100 RADIO FREQUENCY INTERFERENCE (RFI) APPLICATIONS INFORMATION DIFFERENTIAL DRIVE PRECISION STRAIN GAGE DRIVING A DIFFERENTIAL ADC OUTLINE DIMENSIONS ORDERING GUIDE