The LMP8100A high-precision PGA delivers a guaranteed 0.03% gain accuracy using a software-adjustable gain (in 1-V/V increments) from 1 to 16 V/V over the full industrial temperature range of 40 to 125C, while the LMP8100 semi-precision-grade PGA provides a guaranteed 0.075% gain accuracy over 40 to 85C. Housed in 14-pin SOIC packages, the amplifiers’ closed-loop gain is set by an array of 16 precision thin-film resistors.
At the core of the PGAs is a precision 33-MHz CMOS input, rail-to-rail, input/output (RRIO) operational amplifier with a typical open-loop gain of 110 dB. The LMP8100A provides a slew rate of 12 V/µs, a voltage range of 2.7 to 5.5 V, a supply current of 5.3 mA, and an output current of 20 mA. A power-conserving shutdown mode reduces current consumption to 20 µA. (Ea/1,000: LMP8100A, $7; LMP8100, $2.50—available now.)
National Semiconductor , Santa Clara , CA
Sales 800-272-9959
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