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Details for Texas Instruments


3 Femtoampere Input Bias Current Precision Amplifier
Buy Directly from Texas Instruments (11187 in Stock)
$2.2500 per unit
Series Information for LMP7721MA/NOPB - Texas Instruments


  • feature
    8-Pin SOIC
  • feature
    DC CMRR 100 dB
  • feature
    DC Open-Loop Gain 120 dB
  • feature
    GBW 17 MHz
  • feature
    Input Bias Current (VCM = 1 V) u2013 Maximum at 25u00b0C u00b120 fA u2013 Maximum at 85u00b0C u00b1900 fA
  • feature
    Input Voltage Noise (at f = 1 kHz) 6.5 nV/u221aHz
  • feature
    Offset Voltage Drift u22121.5 u03bcV/u00b0C
  • feature
    Offset Voltage u00b126 u00b5V
  • feature
    Operating Temperature Range u221240u00b0C to 125u00b0C
  • feature
    Slew Rate (Falling Edge) 12.76 V/u03bcs
  • feature
    Supply Current 1.3 mA
  • feature
    Supply Voltage 1.8 V to 5.5 V
  • feature
    THD 0.0007%
  • feature
    Unless Otherwise Noted, Typical Values at TA = 25u00b0C, VS = 5 V.


The LMP7721 is the industry’s lowest specified input bias current precision amplifier. The ultra-low input bias current is 3 fA, with a specified limit of ±20 fA at 25°C and ±900 fA at 85°C. This is achieved with the latest patent-pending technology of input bias current cancellation amplifier circuitry. This technology also maintains the ultra-low input bias current over the entire input common-mode voltage range of the amplifier. Other outstanding features, such as low voltage noise (6.5 nV/√Hz), low DC-offset voltage (±150 µV maximum at 25°C) and low-offset voltage temperature coefficient (−1.5 µV/°C), improve system sensitivity and accuracy in high-precision applications. With a supply voltage range of 1.8 V to 5.5 V, the LMP7721 is the ideal choice for batteryoperated, portable applications. The LMP7721 is part of the LMP™ precision amplifier family. As part of Texas Instruments' PowerWise™ products, the LMP7721 provides the remarkably wide-gain bandwidth product (GBW) of 17 MHz while consuming only 1.3 mA of current. This wide GBW along with the high open-loop gain of 120 dB enables accurate signal conditioning. With these specifications, the LMP7721 has the performance to excel in a wide variety of applications such as electrochemical cell amplifiers and sensor interface circuits. The LMP7721 is offered in an 8-pin SOIC package with a special pinout that isolates the amplifier’s input from the power supply and output pins. With proper board layout techniques, the unique pinout of the LMP7721 will prevent PCB leakage current from reaching the input pins. Thus system error will be further reduced.


No. of Amplifiers:
Slew Rate:
Supply Voltage Range:
1.8V to 5.5V
Amplifier Case Style:
No. of Pins:
Operating Temperature Min:
Operating Temperature Max:
Product Range:
Automotive Qualification Standard:
RoHS Phthalates Compliant:
MSL 1 - Unlimited
No SVHC (27-Jun-2018)
Amplifer Supply Voltage:
1.8V to 5.5V
Gain Bandwidth:
Op Amp Type:
Operating Temperature Range:
-40°C to +125°C
Supply Voltage Max:
Supply Voltage Min:

Alternate Descriptions

Avnet America

OP Amp Single GP 5.5V 8-Pin SOIC N Rail

Avnet America product

Avnet Europe

OP Amp Single GP 5.5V 8-Pin SOIC N Rail

Avnet Europe product

Texas Instruments

3 Femtoampere Input Bias Current Precision Amplifier

Texas Instruments product