ROHM has added 17 CMOS operational amplifiers across two new series, TLRx728 and BD728x, targeting automotive, industrial and consumer precision applications. The lineup spans 1-channel, 2-channel and 4-channel configurations across multiple package options.
The TLRx728 achieves an input offset voltage of 150 µV (typ.), while the BD728x comes in at 1.6 mV (typ.). Both series share a noise voltage density of 12 nV/√Hz at 1 kHz and a slew rate of 10 V/µs. Rail-to-rail input and output extends the usable dynamic range to the supply rails.
In automotive and industrial signal chains, op amp offset voltage and noise floor are the primary limiters on measurement accuracy. At 150 µV (TLRx728) or 1.6 mV (BD728x) offset and a 12 nV/√Hz noise density, the series covers a range of precision requirements across sensor signal processing, current detection, motor driver control and power supply monitoring. The 10 V/µs slew rate supports fast output response, and rail-to-rail I/O is particularly useful in single-supply designs where output headroom is limited.
The devices are available now through DigiKey, Mouser and Farnell. Sample pricing starts at $2.00 per unit for 1-channel, $2.80 for 2-channel and $4.00 for 4-channel (excluding tax).
Source: ROHM
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