SNOSB93A – AUGUST 2011 – REVISED APRIL 2013
SM73302 88 MHz, Precision, Low Noise, 1.8V CMOS Input, Decompensated Operational
Check for Samples: SM73302
•2 (Typical 5V Supply, Unless Otherwise Noted)
• Renewable Energy Grade
• Input Offset Voltage ±150 µV (max)
• Input Referred Voltage Noise 5.8 nV/√Hz
• Input Bias Current 100 fA
• Gain Bandwidth Product 88 MHz
• Supply Voltage Range 1.8V to 5.5V
• Supply Current 1.15mA
• Rail-to-Rail Output Swing
– @ 10 kΩ Load 25 mV from Rail
– @ 2 kΩ Load 45 mV from Rail
• 2.5V and 5.0V Performance
• Total Harmonic Distortion 0.04% @1 kHz, 600Ω
• Temperature Range −40°C to 125°C
• ADC Interface
• Photodiode Amplifiers
• Active Filters and Buffers
• Low Noise Signal Processing
• Medical Instrumentation
• Sensor Interface Applications
The SM73302 low noise, CMOS input operational
amplifier offers a low input voltage noise density of
5.8 nV/√Hz while consuming only 1.15 mA of
quiescent current. The SM73302 is stable at a gain of
10 and has a gain bandwidth (GBW) product of 88
MHz. The SM73302 has a supply voltage range of
1.8V to 5.5V and can operate from a single supply.
The SM73302 features a rail-to-rail output stage, and
is part of the precision amplifier family and is ideal for
a variety of instrumentation applications.
The SM73302 provides optimal performance in low
voltage and low noise systems. A CMOS input stage,
with typical input bias currents in the range of a few
femtoamperes, and an input common mode voltage
range, which includes ground, makes the SM73302
ideal for low power sensor applications where high
speeds are needed.
The SM73302 is manufactured using an advanced
VIP50 process. The SM73302 is offered in a 5-Pin
CIN = CD + CCM
Figure 1. Photodiode Transimpedance Amplifier
10 100 1k 10k
Figure 2. Input Referred Voltage Noise vs.
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