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TI LMP7721MA/NOPBRoHS

Manufacturer
TI
MPN
LMP7721MA/NOPB
LCSC Part #
C124427
Packaging
SOIC-8
Customer #
Key Attributes
Femtoampere Input Bias Current Precision Amplifier
Datasheetpdf iconTI LMP7721MA/NOPB
In-Stock: 194
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QtyUnit PriceTotal Amount
1+$ 4.3743$ 4.37
10+$ 3.757$ 37.57
30+$ 3.1871$ 95.61
95+$ 2.8158$ 267.50
475+$ 2.6448$ 1256.28
950+$ 2.5682$ 2439.79
Standard Packaging95/Full Tube
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Linear/Amplifiers/Instrumentation, Op Amps, Buffer Amps
ManufacturerTI
PackagingSOIC-8
Number of Channels1
Vos - Input Offset Voltage50uV
Slew Rate12.76V/us
Input Offset Current(Ios)0.006pA
FeaturesReverse-phase input protection
Operating Temperature-40℃~+125℃
Common Mode Rejection Ratio(CMRR)100dB
Ib - Input Bias Current0.003pA
Output Current46mA
Input Offset Voltage Drift(Vos TC)1.5uV/℃
Gain Bandwidth Product17MHz
Quiescent Current1.3mA
Input Voltage Noise Density6.5nV/√Hz@1kHz
Rail to RailRail-to-rail output
Single Supply1.8V~5.5V
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging95
Sales UnitPiece

Introduction

AI Translation

The LMP7721 is the 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 battery-operated, portable applications.

As part of 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.

Features

AI Translation
  • Input Bias Current (VCM = 1ΔV) – Maximum at 25°C ±20 fA, Maximum at 85°C ±900 fA
  • Offset Voltage ±26 μV
  • Offset Voltage Drift -1.5 μV/°C
  • DC Open-Loop Gain 120 dB
  • DC CMRR 100 dB
  • Input Voltage Noise (at f = 1 kHz) 6.5 nV/√Hz
  • THD 0.0007%
  • Supply Current 1.3 mA
  • GBW 17 MHz
  • Slew Rate (Falling Edge) 12.76 V/μs
  • Supply Voltage 1.8 V to 5.5 V
  • Operating Temperature Range -40°C to 125°C
  • 8-Pin SOIC

Applications

AI Translation
  • Photodiode Amplifier
  • High Impedance Sensor Amplifier
  • Ion Chamber Amplifier
  • Electrometer Amplifier
  • pH Electrode Amplifier
  • Transimpedance Amplifier