OPA376AID

Part: OPA376, OPA2376, OPA4376 — Texas Instruments

Type: Low-Noise, Low Quiescent Current, Precision Operational Amplifier

Description: A family of low-noise operational amplifiers with rail-to-rail input and output, featuring a typical offset voltage of 5 μV, 7.5 nV/√Hz noise density, 760 μA quiescent current, and a 5.5 MHz gain bandwidth product, operating from 2.2V to 5.5V supply.

Operating Conditions:

• Supply voltage: 2.2V to 5.5V
• Operating temperature: -40°C to +125°C

Absolute Maximum Ratings:

• Max supply voltage: +7 V
• Max signal input current: ±10 mA
• Max junction/storage temperature: +150 °C

Key Specs:

• Input Offset Voltage (VOS): 5 μV (typ), 25 μV (max)
• Input Voltage Noise Density (eN): 7.5 nV/√Hz at 1kHz (typ)
• Input Voltage Noise (0.1Hz to 10Hz): 0.8 μVPP (typ)
• Quiescent Current per amplifier (IQ): 760 μA (typ), 950 μA (max) at VS = +5.5V
• Gain-Bandwidth Product (GBW): 5.5 MHz (typ)
• Slew Rate (SR): 2 V/μs (typ)
• Common-Mode Voltage Range (VCM): (V-) - 0.1V to (V+) + 0.1V
• Common-Mode Rejection Ratio (CMRR): 90 dB (typ), 76 dB (min) for (V-) < VCM < (V+) - 1.3V

Features:

• Low Noise: 7.5 nV/√Hz at 1kHz
• 0.1Hz to 10Hz Noise: 0.8 μVPP
• Low Offset Voltage: 5 μV (typ)
• Rail-to-Rail Input and Output
• Single-Supply Operation
• Excellent PSRR

Applications:

• ADC Buffer
• Audio Equipment
• Medical Instrumentation
• Handheld Test Equipment
• Active Filtering
• Sensor Signal Conditioning

Package:

• SC70-5
• SOT23-5
• SO-8
• WCSP-8
• MSOP-8
• TSSOP-14

• 23 • LOW NOISE: 7.5nV/

√ Hz at 1kHz

• 0.1Hz TO 10Hz NOISE: 0.8 μ

VPP

• QUIESCENT CURRENT: 760

μ A (typ)

• LOW OFFSET VOLTAGE: 5

μ V (typ)

• GAIN BANDWIDTH PRODUCT: 5.5MHz

• RAIL-TO-RAIL INPUT AND OUTPUT

• SINGLE-SUPPLY OPERATION

• SUPPLY VOLTAGE: 2.2V to 5.5V

• SPACE-SAVING PACKAGES:

• SC-70, SOT23, WCSP, MSOP, TSSOP

• ADC BUFFER

• AUDIO EQUIPMENT

• MEDICAL INSTRUMENTATION

• HANDHELD TEST EQUIPMENT

• ACTIVE FILTERING

• SENSOR SIGNAL CONDITIONING

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2 e-trim, NanoStar, NanoFree are trademarks of Texas Instruments Incorporated. 3 All other trademarks are the property of their respective owners.

SBOS406F -JUNE 2007-REVISED MARCH 2013

NOTE: (1) NC denotes no internal connection.

Boldface limits apply over the specified temperature range: TA = -40°C to +125°C.

At TA = +25°C, RL = 10k Ω connected to VS/2, VCM = VS/2, and VO UT = VS/2, unless otherwise noted.

over operating free-air temperature range (unless otherwise noted)

The OPA376 family of operational amplifiers is built using e-trim , a proprietary technique in which offset voltage is adjusted during the final steps of manufacturing. This technique compensates for performance shifts that can occur during the molding process. Through e-trim , the OPA376 family delivers excellent offset voltage (5 μ V, typ). Additionally, the amplifier boasts a fast slew rate, low drift, low noise, and excellent PSRR and AOL. These 5.5MHz CMOS op amps operate on 760 μ A (typ) quiescent current.