MAX5421CEUB+

The MAX5421CEUB+ is a digitally programmable precision voltage divider for PGAs in 10 pin µMAX package. It operates from a single supply or dual supply and consumes only 3µA supply current. This device consists of a digitally selectable resistor array that provides four precision noninverting gains of 1, 2, 4 and 8 for PGAs. Achieve a resistor ratio accuracy of 0.5% and includes an on-chip matching resistor for op amp bias-current compensation. It is ideally used at general purpose programmable noninverting amplifiers and programmable instrumentation amplifiers.

• 5V single or ±5V dual supply operation (single supply range from 4.75V to 5.25V)
• Operating temperature range from -40°C to 85°C
• Four precision divider ratios for noninverting gains of 1, 2, 4 and 8 in PGAs
• Low 3µA supply current
• CMOS/TTL logic compatible 2-wire parallel interface
• ±0.5% divider ratio accuracy
• 300 ohm matching resistor at ratio = 1, VSS = -5V
• 0.5µs switching time

Applications

Signal Processing

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party