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LPV521
  • LPV521
  • LPV521
  • LPV521
  • LPV521
  • LPV521
  • LPV521

LPV521

ACTIVE

Single, 5.5V, 6.2kHz, 350nA quiescent current, 1.6V supply (min), RRIO operational amplifier

Texas Instruments LPV521 Product Info

1 April 2026 0

Parameters

Number of channels

1

Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V)

5.5

Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V)

1.6

Rail-to-rail

In, Out

GBW (typ) (MHz)

0.0062

Slew rate (typ) (V/µs)

0.0024

Vos (offset voltage at 25°C) (max) (mV)

1

Iq per channel (typ) (mA)

0.000351

Vn at 1 kHz (typ) (nV√Hz)

255

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Offset drift (typ) (µV/°C)

0.4

Features

EMI Hardened

Input bias current (max) (pA)

1

CMRR (typ) (dB)

102

Iout (typ) (A)

0.022

Architecture

CMOS

Input common mode headroom (to negative supply) (typ) (V)

0.0004

Input common mode headroom (to positive supply) (typ) (V)

0.000351

Output swing headroom (to negative supply) (typ) (V)

0.003

Output swing headroom (to positive supply) (typ) (V)

-0.003

Package

PDIP (P)-8-92.5083 mm² 9.81 x 9.43

Features

  • For VS = 5V, typical unless otherwise noted:
    • Supply current at VCM = 0.3V: 400nA (max)
    • Operating voltage range: 1.6V to 5.5V
    • Low TCVOS: 3.5µV/°C (max)
    • VOS: 1mV (max)
    • Input bias current: 40fA
    • PSRR: 109dB
    • CMRR: 102dB
    • Open-loop gain: 132dB
    • Gain bandwidth product: 6.2kHz
    • Slew rate: 2.4V/ms
    • Input voltage noise at f = 100Hz: 255nV/√Hz
    • Temperature range: −40°C to +125°C
  • For VS = 5V, typical unless otherwise noted:
    • Supply current at VCM = 0.3V: 400nA (max)
    • Operating voltage range: 1.6V to 5.5V
    • Low TCVOS: 3.5µV/°C (max)
    • VOS: 1mV (max)
    • Input bias current: 40fA
    • PSRR: 109dB
    • CMRR: 102dB
    • Open-loop gain: 132dB
    • Gain bandwidth product: 6.2kHz
    • Slew rate: 2.4V/ms
    • Input voltage noise at f = 100Hz: 255nV/√Hz
    • Temperature range: −40°C to +125°C

Description

The LPV521 is a single, nanopower, 552nW amplifier designed for ultra-long-life battery applications. The operating voltage range of 1.6V to 5.5V coupled with typically 351nA of supply current make this device an excellent choice for RFID readers and remote-sensor nanopower applications. The device has an input common-mode voltage 0.1V over the rails, specified TCVOS, and voltage-swing-to-the-rail output performance. The LPV521 has a carefully designed CMOS input stage that outperforms competitors with typically 40fA IBIAS currents. This low input current significantly reduces IBIAS and IOS errors introduced in megohm resistance, high-impedance photodiode and charge sense applications. The LPV521 is a member of the PowerWise family, and has an exceptional power-to-performance ratio.

The wide input common-mode voltage range, specified 1mV VOS and 3.5µV/°C TCVOS enables accurate and stable measurement for both high-side and low-side current sensing.

EMI protection is designed into the device to reduce sensitivity to unwanted RF signals from cell phones or other RFID readers.

The LPV521 is offered in 5-pin SC70 and 8-pin PDIP packages.

The LPV521 is a single, nanopower, 552nW amplifier designed for ultra-long-life battery applications. The operating voltage range of 1.6V to 5.5V coupled with typically 351nA of supply current make this device an excellent choice for RFID readers and remote-sensor nanopower applications. The device has an input common-mode voltage 0.1V over the rails, specified TCVOS, and voltage-swing-to-the-rail output performance. The LPV521 has a carefully designed CMOS input stage that outperforms competitors with typically 40fA IBIAS currents. This low input current significantly reduces IBIAS and IOS errors introduced in megohm resistance, high-impedance photodiode and charge sense applications. The LPV521 is a member of the PowerWise family, and has an exceptional power-to-performance ratio.

The wide input common-mode voltage range, specified 1mV VOS and 3.5µV/°C TCVOS enables accurate and stable measurement for both high-side and low-side current sensing.

EMI protection is designed into the device to reduce sensitivity to unwanted RF signals from cell phones or other RFID readers.

The LPV521 is offered in 5-pin SC70 and 8-pin PDIP packages.

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