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OPA4328

ACTIVO

Amp. operacional CMOS RRIO de 4 can., prec., tensión de comp. de 50 µV y ancho de banda de 40 MHz

Detalles del producto

Number of channels 4 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.2 Vos (offset voltage at 25°C) (max) (mV) 0.05 Offset drift (typ) (µV/°C) 0.15 Input bias current (max) (pA) 1 GBW (typ) (MHz) 40 Features EMI Hardened, Zero Crossover, e-Trim™ Slew rate (typ) (V/µs) 30 Rail-to-rail In, Out Iq per channel (typ) (mA) 3.8 Vn at 1 kHz (typ) (nV√Hz) 9.8 CMRR (typ) (dB) 120 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.065 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) -0.1 Output swing headroom (to negative supply) (typ) (V) 0.005 Output swing headroom (to positive supply) (typ) (V) 0.005 THD + N at 1 kHz (typ) (%) 0.0001
Number of channels 4 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.2 Vos (offset voltage at 25°C) (max) (mV) 0.05 Offset drift (typ) (µV/°C) 0.15 Input bias current (max) (pA) 1 GBW (typ) (MHz) 40 Features EMI Hardened, Zero Crossover, e-Trim™ Slew rate (typ) (V/µs) 30 Rail-to-rail In, Out Iq per channel (typ) (mA) 3.8 Vn at 1 kHz (typ) (nV√Hz) 9.8 CMRR (typ) (dB) 120 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.065 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) -0.1 Output swing headroom (to negative supply) (typ) (V) 0.005 Output swing headroom (to positive supply) (typ) (V) 0.005 THD + N at 1 kHz (typ) (%) 0.0001
TSSOP (PW) 14 32 mm² (5 mm × 6.4 mm)
  • Precision with zero-crossover distortion:
    • Low offset voltage: 50µV (maximum)
    • High CMRR: 120dB
    • Rail-to-rail I/O
  • Wide bandwidth: 40MHz
  • Low input bias current: 1pA (maximum)
  • Low noise: 6.1nV/√Hz at 10kHz
  • Slew rate: 30V/µs
  • Fast 0.01% settling time: 180ns
  • Single-supply voltage range: 2.2V to 5.5V
  • Unity-gain stable
  • Precision with zero-crossover distortion:
    • Low offset voltage: 50µV (maximum)
    • High CMRR: 120dB
    • Rail-to-rail I/O
  • Wide bandwidth: 40MHz
  • Low input bias current: 1pA (maximum)
  • Low noise: 6.1nV/√Hz at 10kHz
  • Slew rate: 30V/µs
  • Fast 0.01% settling time: 180ns
  • Single-supply voltage range: 2.2V to 5.5V
  • Unity-gain stable

The single-channel OPA328, dual-channel OPA2328 and quad-channel OPA4328 (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, dual-channel OPA2328 and quad-channel OPA4328 (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).

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* Hoja de datos OPAx328 Precision, 40MHz, 1pA, Low-Noise, RRIO, CMOS Operational Amplifiers With Shutdown datasheet (Rev. G) PDF | HTML 9/03/2026

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