OPA2328 Series

Dual-channel, precision, 50-µV offset voltage, 40-MHz wide-bandwidth RRIO CMOS op amp

Catalog

Dual-channel, precision, 50-µV offset voltage, 40-MHz wide-bandwidth RRIO CMOS op amp

Part	Supplier Device Package	Voltage - Input Offset	Amplifier Type	Voltage - Supply Span (Max) [Max]	Package / Case	Package / Case [y]	Package / Case [x]	Slew Rate	Voltage - Supply Span (Min) [Min]	Current - Output / Channel	Number of Circuits	Current - Supply	Output Type	Mounting Type	Gain Bandwidth Product	Current - Input Bias	Operating Temperature [Min]	Operating Temperature [Max]	Package / Case [custom]	Package / Case
Texas Instruments OPA2328DR	8-SOIC	3 µV	Standard	5.5 V	8-SOIC	3.9 mm	0.154 in	30 V/µs	2.2 V	65 mA	2	3.8 mA	Rail-to-Rail Single Ended	Surface Mount	40 MHz	0.2 pA	-40 °C	125 °C
Texas Instruments OPA2328DGKT		3 µV	CMOS	5.5 V	8-MSOP 8-TSSOP			30 V/µs	2.2 V	65 mA	2	3.8 mA	Rail-to-Rail	Surface Mount	40 MHz	0.2 pA	-40 °C	125 °C	0.118 in	3 mm
Texas Instruments OPA2328DGKR		3 µV	CMOS	5.5 V	8-MSOP 8-TSSOP			30 V/µs	2.2 V	65 mA	2	3.8 mA	Rail-to-Rail	Surface Mount	40 MHz	0.2 pA	-40 °C	125 °C	0.118 in	3 mm

Catalog

Dual-channel, precision, 50-µV offset voltage, 40-MHz wide-bandwidth RRIO CMOS op amp

Key Features

• Precision with zero-crossover distortion:Low offset voltage: 50µV (maximum)High CMRR: 120dBRail-to-rail I/OWide bandwidth: 40MHzLow input bias current: 1pA (maximum)Low noise: 6.1nV/√Hz at 10kHzSlew rate: 30V/µsFast 0.01% settling time: 180nsSingle-supply voltage range: 2.2V to 5.5VUnity-gain stablePrecision with zero-crossover distortion:Low offset voltage: 50µV (maximum)High CMRR: 120dBRail-to-rail I/OWide bandwidth: 40MHzLow input bias current: 1pA (maximum)Low noise: 6.1nV/√Hz at 10kHzSlew rate: 30V/µsFast 0.01% settling time: 180nsSingle-supply voltage range: 2.2V to 5.5VUnity-gain stable

Description

The single-channel OPA328 and dual-channel OPA2328 (OPAx328) are a new generation family of precision, low-voltage CMOS operational amplifiers optimized for very low noise and wide bandwidth. The OPAx328 have a linear input stage with zero-crossover distortion that delivers excellent common-mode rejection ratio (CMRR) of 120dB (typical) over the full input range. The input common-mode voltage range extends 100mV beyond the negative and positive supply rails. The output voltage typically swings within 10mV of the rails. The OPAx328 also use Texas Instrument’s proprietary e‑trim™ operational amplifier technology, enabling a unique combination of ultra-low offset and low input offset drift without the need for any input switching or auto-zero techniques. Low-noise (6.1nV/√Hz) and high-speed operation (40MHz, 30V/µs) make these devices a great choice for driving sampling analog-to-digital converters (ADCs). The OPAx328 are also a great choice for high-impedance-input, single-supply applications. Low input bias current and low input capacitance allows for high-frequency transimpedance gains at low photocurrent operation (< 1nA). The single-channel OPA328 and dual-channel OPA2328 (OPAx328) are a new generation family of precision, low-voltage CMOS operational amplifiers optimized for very low noise and wide bandwidth. The OPAx328 have a linear input stage with zero-crossover distortion that delivers excellent common-mode rejection ratio (CMRR) of 120dB (typical) over the full input range. The input common-mode voltage range extends 100mV beyond the negative and positive supply rails. The output voltage typically swings within 10mV of the rails. The OPAx328 also use Texas Instrument’s proprietary e‑trim™ operational amplifier technology, enabling a unique combination of ultra-low offset and low input offset drift without the need for any input switching or auto-zero techniques. Low-noise (6.1nV/√Hz) and high-speed operation (40MHz, 30V/µs) make these devices a great choice for driving sampling analog-to-digital converters (ADCs). The OPAx328 are also a great choice for high-impedance-input, single-supply applications. Low input bias current and low input capacitance allows for high-frequency transimpedance gains at low photocurrent operation (< 1nA).