LMP7731 Datasheet | Texas Instruments

FEATURES 23(Typical Values, TA = 25°C, VS = 5V) - Input Voltage Noise - f = 3 Hz 3.3 n V/√Hz - f = 1 k Hz 2.9 n V/√Hz DESCRIPTION The LMP7731 is a single, low noise, rail-to-rail input and output, low voltage amplifier. The LMP7731 is part of the LMP™ precision amplifier family and is ideal for precision and low noise applications with low voltage requirements. - CMRR 130 d B - Open Loop Gain 130 d B - GBW 22 MHz - Slew Rate 2.4 V/µs - THD @ f = 10 k Hz, AV = +1, RL = 2 kΩ 0.001% - Supply Current per Channel 2.2 m A - Supply Voltage Range 1.8V to 5.5V - Operating Temperature Range - 40°C to 125°C - Input Bias Current ±1.5 n A - RRIO This operational amplifier offers low voltage noise of 2.9 n V/√Hz with a 1/f corner of only 3 Hz. The LMP7731 has bipolar input stages with a bias current of only 1.5 n A. This low input bias current, plemented by the very low level of voltage noise, makes the LMP7731 an excellent choice for photometry applications. The LMP7731 provides a wide GBW of 22 MHz while consuming only 2 m A of current. This high gain bandwidth along with the high open loop gain of 130 d B enables accurate signal conditioning in applications with high closed loop gain requirements. APPLICATIONS - Gas Analysis Instruments The LMP7731 has a supply voltage range of 1.8V to 5.5V, making it an ideal choice for battery operated portable applications. - Photometric Instrumentation The LMP7731 is offered in the space saving 5-Pin - Medical Instrumentation SOT-23 and 8-Pin SOIC packages. Typical Performance Characteristics Input Voltage Noise vs. Frequency 100 VS = 2.5V, 3.3V, 5V Input Current Noise vs. Frequency 100 VS = 2.5V, 3.3V, 5V VOLTAGE NOISE (n V/ Hz) CURRENT NOISE (p A/ Hz) VCM = 0.5V VCM =...