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AD8244ARMZ-R7 数据表(PDF) 3 Page - Analog Devices |
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AD8244ARMZ-R7 数据表(HTML) 3 Page - Analog Devices |
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3 / 20 page  Data Sheet AD8244 SPECIFICATIONS +VS = 5 V, –VS = 0 V, TA = 25°C, VIN = 0.2 V, RL = 10 kΩ to ground, unless otherwise noted. Table 1. Parameter Test Conditions/Comments AD8244A AD8244B Unit Min Typ Max Min Typ Max DC PERFORMANCE Offset Voltage 100 600 100 350 µV Over Temperature TA = −40°C to +85°C 1.25 0.675 mV Average Temperature Coefficient TA = −40°C to +85°C 10 5 µV/°C Offset Voltage Matching Channel to channel 800 500 µV Input Bias Current 0.5 10 0.5 2 pA Over Temperature TA = 85°C 150 50 pA Input Bias Current Matching Channel to channel 0.05 0.05 0.2 pA Over Temperature TA = 85°C 2 2 pA SYSTEM PERFORMANCE Nominal Gain 1 1 V/V System Error1 VOUT = 0.2 V to 3 V 0.08 0.05 % Average Temperature Coefficient TA = −40°C to +85°C 2 1 ppm/°C Gain Matching Channel to channel 0.10 0.08 % NOISE PERFORMANCE Voltage Noise Spectral Density f = 1 kHz 13 13 nV/√Hz Peak-to-Peak f = 0.1 Hz to 10 Hz 0.4 0.4 2 µV p-p Current Noise Spectral Density f = 1 kHz 0.8 0.8 fA/√Hz Peak-to-Peak f = 0.1 Hz to 10 Hz 8 8 fA p-p DYNAMIC PERFORMANCE Small Signal Bandwidth −3 dB 3 3 MHz Slew Rate 0.8 0.8 V/µs Settling Time to 0.01% VOUT = 0.2 V to 3 V 8 8 µs INPUT CHARACTERISTICS Input Voltage Range2 0 4 0 4 V Over Temperature TA = −40°C to +85°C 0 3.5 0 3.5 V Input Impedance3 10||4 10||4 TΩ||pF OUTPUT CHARACTERISTICS Output Swing RL = 10 kΩ to ground 0.025 4.9 0.025 4.9 V Over Temperature TA = −40°C to +85°C 0.03 4.88 0.03 4.88 V Output Swing RL = no load 0.025 4.97 0.025 4.97 V Over Temperature TA = −40°C to +85°C 0.03 4.95 0.03 4.95 V Short-Circuit Current 8 8 mA Capacitive Load Drive 200 200 pF POWER SUPPLY Operating Range Single supply 3 36 3 36 V Dual supply ±1.5 ±18 ±1.5 ±18 V Power Supply Rejection VIN = 2.5 V, +VS = 4.5 V to 5.5 V 80 80 dB Supply Current per Amplifier IOUT = 0 mA 180 250 180 250 µA Over Temperature TA = −40°C to +85°C 300 300 µA TEMPERATURE RANGE Specified Performance −40 +85 −40 +85 °C 1 Error as a percentage of the measurement. This includes the effects of open-loop gain and common-mode rejection ratio. 2 The inputs of the AD8244 can go up to the positive supply; however, the input range is derated because error increases near the positive supply as the input transistors start to saturate. The inputs also maintain high impedance when driven slightly below ground. 3 For more information on the input impedance, see Figure 24 and Figure 37. Rev. 0 | Page 3 of 20 |
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