The AD8544ARUZ-REEL from Analog Devices is a CMOS, quad, rail to rail, single supply amplifier in 14 lead TSSOP package. This general purpose, input and output amplifier features very low supply current and 1MHz bandwidth. It operates from a 2.7V single supply as well as a 5V supply. This device provides 1MHz bandwidth at a low current consumption of 45μA per amplifier. Very low input bias currents enable the AD8544 to be used for integrators, photodiode amplifiers, piezoelectric sensors and other applications with high source impedance. The supply current is only 45μA per amplifier, ideal for battery operation. Rail to rail inputs and outputs are useful to designers buffering ASICs in single supply systems. The AD8544 is optimized to maintain high gains at lower supply voltages, making them useful for active filters and gain stages. It has large signal voltage gain of 40V/mV (RL = 100Kohm, VO = 0.5 to 2.2V) at VS = 5V, -40°C <= TA <= +125°C.
- Gain bandwidth product (GBP) of 1000KHz, phase margin of 67degree at Vs= 5V
- Full power bandwidth of 70KHz, settling time (to 0.1% (1V step)) of 6μs at VS = 5V
- No phase reversal, unity gain stable, low input current of 4pA
- 42nV/√Hz (f=1KHz), 38nV/√Hz (f=10KHz) voltage noise density at VS=5V
- Offset voltage of 1mV at VS = 5V, -40°C <= TA <= +125°C and <0.1pA/√Hz current noise density at VS=5V
- Slew rate of 0.92V/μs at RL = 100Kohm, CL = 200pF, Vs = 5V
- Input bias current of 4pA, input offset current of 0.1pA at VS = 5V, -40°C <= TA <= +125°C
- CMRR of 48dB (VCM = 0V to 5V) at VS = 5V, -40°C <= TA <= +125°C and PSRR of 76dB (VS = 2.5V to 6V)
- Single supply operation from 2.7V to 5.5V
- Operating temperature range from -40°C to +125°C
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