Datasheet LT1884, LT1885 (Analog Devices) - 3

FabricanteAnalog Devices
DescripciónDual/Quad Rail-to-Rail Output, Picoamp Input Precision Op Amps
Páginas / Página12 / 3 — ELECTRICAL CHARACTERISTICS. The
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ELECTRICAL CHARACTERISTICS. The

ELECTRICAL CHARACTERISTICS The

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LT1884/LT1885
ELECTRICAL CHARACTERISTICS The

denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. Single supply operation VEE = 0, VCC = 5V; VCM = VCC/2 unless otherwise noted. (Note 5) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
IB Input Bias Current (LT1884A) 100 400 pA 0°C < TA < 70°C ● 500 pA – 40°C < TA < 85°C ● 600 pA Input Bias Current (LT1884/LT1885) 150 900 pA 0°C < TA < 70°C ● 1200 pA – 40°C < TA < 85°C ● 1400 pA Input Noise Voltage 0.1Hz to 10Hz 0.4 µVP-P en Input Noise Voltage Density f = 1kHz 9.5 nV/√Hz in Input Noise Current Density f = 1kHz 0.05 pA/√Hz VCM Input Voltage Range VEE + 1.0 VCC – 1.0 V ● VEE + 1.2 VCC – 1.2 V CMRR Common Mode Rejection Ratio 1V < VCM < 4V 108 128 dB 1.2V < VCM < 3.8V ● 106 dB PSRR Power Supply Rejection Ratio VEE = 0, VCM = 1.5V 0°C < TA < 85°C, 2.7V < VCC < 32V ● 108 132 dB TA = – 40°C, 3V < VCC < 32V 108 132 dB Minimum Operating Supply Voltage ● 2.4 2.7 V AVOL Large-Signal Voltage Gain RL = 10k; 1V < VOUT < 4V 500 1600 V/mV ● 350 V/mV RL = 2k; 1V < VOUT < 4V 400 800 V/mV ● 300 V/mV RL = 1k; 1V < VOUT < 4V 300 400 V/mV ● 200 V/mV VOL Output Voltage Swing Low No Load ● 20 40 mV ISINK = 100µA ● 25 50 mV ISINK = 1mA ● 70 150 mV ISINK = 5mA ● 270 600 mV VOH Output Voltage Swing High No Load ● 120 220 mV (Referred to VCC) ISOURCE = 100µA ● 130 230 mV ISOURCE = 1mA ● 180 300 mV ISOURCE = 5mA ● 360 600 mV IS Supply Current per Amplifier VCC = 3V 0.45 0.65 0.85 mA ● 1.30 mA VCC = 5V 0.50 0.65 0.9 mA ● 1.4 mA VCC = 12V 0.50 0.70 1.0 mA ● 1.5 mA ISC Short-Circuit Current VOUT Short to GND ● 15 30 mA VOUT Short to VCC ● 15 30 mA GBW Gain-Bandwidth Product f = 20kHz 1.2 2 MHz tS Settling Time 0.01%, VOUT = 1.5V to 3.5V, 10 µs AV = –1, RL = 2k SR + Positive Slew Rate AV = – 1 0.45 0.9 V/µs ● 0.36 V/µs SR – Negative Slew Rate AV = – 1 0.35 0.7 V/µs ● 0.25 V/µs 3