LMP7721MA/NOPB

46mA Single-channel 50uV 12.76V/us 100dB 0.003pA 17MHz 1.3mA Rail-to-rail output SOIC-8 Instrumentation, Op Amps, Buffer Amps RoHS

SOIC-8ROHS3 CompliantActive

Femtoampere Input Bias Current Precision Amplifier

Manufacturer: TI
Manufacturer part #: LMP7721MA/NOPB
Store part #: C124427
Package / case: SOIC-8
Category: Instrumentation, Op Amps, Buffer Amps
Packaging: Tube-packed

Datasheet (PDF)

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699 in stock

#C124427

Stock & price checked 21 h ago

Quantity	Unit price	Pack price
1+	₹786.33	₹786.33
10+	₹679.10	₹6,791.00
30+	₹572.95	₹17,188.50
95+	₹518.25	₹49,233.75

Quantity (min 1)

1 × ₹786.33

₹786.33

excl. GST

₹927.87 incl. 18% GST

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Standard pack: 95 per tube

LMP7721MA/NOPB

₹786.33 for 1 + GST

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Specifications

Output Current: 46mA
Number of Channels: Single-channel
Vos - Input Offset Voltage: 50uV
Slew Rate: 12.76V/us
Input Offset Current(Ios): 0.006pA
Operating Temperature: -40℃~+125℃
Common Mode Rejection Ratio(CMRR): 100dB
Ib - Input Bias Current: 0.003pA
Input Offset Voltage Drift(Vos TC): 1.5uV/℃
Gain Bandwidth Product: 17MHz
Quiescent Current: 1.3mA
Features: Reverse-phase input protection
Input Voltage Noise Density: 6.5nV/√Hz@1kHz
Rail to Rail: Rail-to-rail output
Single Supply: 1.8V~5.5V

Packaging & compliance

RoHS: ROHS3 Compliant
Lifecycle: Active
Moisture sensitivity: MSL 1 (unlimited)
ECCN: EAR99
Packaging: Tube-packed
Standard pack: 95 / Tube
Sold per: Piece
Minimum order: 1
Unit weight: 0.173 g

Overview

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.

Applications

Photodiode Amplifier
High Impedance Sensor Amplifier
Ion Chamber Amplifier
Electrometer Amplifier
pH Electrode Amplifier
Transimpedance Amplifier

Key features

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