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PGA204 pdf datasheet (可编程增益仪表放大器)
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The PGA204 and PGA205 are low cost, general purpose
programmable-gain instrumentation amplifiers
offering excellent accuracy. Gains are digitally selected:
PGA204—1, 10, 100, 1000, and PGA205—1,
2, 4, 8V/V. The precision and versatility, and low cost
of the PGA204 and PGA205 make them ideal for a
wide range of applications.
Gain is selected by two TTL or CMOS-compatible
address lines, A0 and A1. Internal input protection can
withstand up to ±40V on the analog inputs without
damage.
The PGA204 and PGA205 are laser trimmed for very
low offset voltage (50mV), drift (0.25mV/°C) and high
common-mode rejection (115dB at G=1000). They operate
with power supplies as low as ±4.5V, allowing use
in battery operated systems. Quiescent current is 5mA.
The PGA204 and PGA205 are available in 16-pin
plastic DIP, and SOL-16 surface-mount packages, specified
for the –40°C to +85°C temperature range.
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