5V 30MHz dual op

STMicroelectronics has added a 30MHz 50µV input offset dual device to its 5V op amp family.

Called TSV782 and working down to 2V, allowing it to use the same power rail as low-voltage logic devices, and consumption is 3.3mA/channel – there is no shut-down pin to reduce this.

Slew rate is 20V/µs, and TSV782 has maximum input bias is 300pA up to 125°C.

±50µV is the typical input offset value, while the maximum is ±200µV at 25°C and ±700µV over the full operating temperature range of -40 to 125°C.

"The high accuracy lets designers create circuits that require no trimming or calibration during production, " said ST and such bias current enables "accurate signal conditioning with high-impedance sensors or in transimpedance configuration".

Input common-mode range includes 100mV outside the power rails, and both input and output are rail-to-rail.

It is fully specified with a 47pF output load "therefore allowing easy usage as an ADC input buffer", said ST.

Package options are SO-8, MiniSO-8 and 2 x 2mm DFN8. Automotive grade versions are available.

TSV782 joins similar rail-to-rail devices in ST portfolio: TSV772 has a gain bamdwidth product of 20MHz and slews at 13V/µs, while the 50MHz TSV792 operates at 5.5mA/ channel. Not rail-to-rail, TSV7722 is similar, with an input stage optimised for low-side current measurement – that said, the TSV782 data sheet includes a section (6.1, see circuit) on low-side current sensing.

Find the TSV782 here, and its data sheet will download from here.

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