OPA4376

Low-Noise, Low Quiescent Current, Precision Operational Amplifier *e-trim*™ Series

Manufacturer

Texas Instruments

Overview

Part: OPA376, OPA2376, OPA4376 from Texas Instruments

Type: Precision Operational Amplifier

Key Specs:

  • Low Noise: 7.5nV/√Hz at 1kHz
  • 0.1Hz to 10Hz Noise: 0.8uVpp
  • Quiescent Current: 760μA (typ)
  • Low Offset Voltage: 5μV (typ)
  • Gain Bandwidth Product: 5.5MHz
  • Supply Voltage: 2.2V to 5.5V

Features:

  • Rail-to-Rail Input and Output
  • Single-Supply Operation
  • Space-saving packages
  • e-trim™ technology
  • Operation from -40°C to +125°C

Applications:

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

Package:

  • SC-70
  • SOT23
  • WCSP
  • MSOP
  • TSSOP
  • SO-8

Features

LOW NOISE: 7.5nV/√Hz at 1kHz 0.1Hz TO 10Hz NOISE: 0.8uVpp

QUIESCENT CURRENT: 760μA (typ) LOW OFFSET VOLTAGE: 5μV (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

Applications

  • ADC BUFFER
  • AUDIO EQUIPMENT
  • MEDICAL INSTRUMENTATION
  • HANDHELD TEST EQUIPMENT
  • ACTIVE FILTERING
  • SENSOR SIGNAL CONDITIONING

Pin Configuration

NOTE: (1) NC denotes no internal connection.

Electrical Characteristics

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

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

PARAMETERSOPA376, OPA2376, OPA4376
CONDITIONSMIN
OFFSET VOLTAGE
Input Offset VoltageVOS
vs TemperaturedVOS/dT–40°C to +85°C
–40°C to +125°C
vs Power SupplyPSRRVS = +2.2V to +5.5V, VCM < (V+) – 1.3V
Over TemperatureVS = +2.2V to +5.5V, VCM < (V+) – 1.3V
Channel Separation, dc (dual, quad)
INPUT BIAS CURRENT
Input Bias CurrentIB
Over Temperature
Input Offset CurrentIOS
NOISE
Input Voltage Noise, f = 0.1Hz to 10Hz
Input Voltage Noise Density, f = 1kHzen
Input Current Noise, f = 1kHzin
INPUT VOLTAGE RANGE
Common-Mode Voltage RangeVCM(V–) – 0.1
Common-Mode Rejection RatioCMRR(V–) < VCM < (V+) – 1.3 V76
INPUT CAPACITANCE
Differential
Common-Mode
OPEN-LOOP GAIN
Open-Loop Voltage GainAOL50mV < VO < (V+) – 50mV, RL = 10kΩ120
100mV < VO < (V+) – 100mV, RL = 2kΩ120
FREQUENCY RESPONSECL = 100pF, VS = 5.5V
Gain-Bandwidth ProductGBW
Slew RateSRG = +1
Settling Time 0.1%tS2V Step , G = +1
Settling Time 0.01%tS2V Step , G = +1
Overload Recovery TimeVIN × Gain > VS
THD + NoiseTHD+NVO = 1VRMS, G = +1, f = 1kHz, RL = 10kΩ
OUTPUT
Voltage Output Swing from Rail(1)
RL = 10kΩ
(2)
RL = 10kΩ
Over TemperatureRL = 10kΩ
Voltage Output Swing from Rail(1)
RL = 2kΩ
(2)
RL = 2kΩ
Over TemperatureRL = 2kΩ
Short-Circuit CurrentISC
Capacitive Load DriveCLOAD
Open-Loop Output ImpedanceRO

(1) SC70-5, SOT23-5, SO-8, MSOP-8, and TSSOP-14 packages only.

(2) Wafer chip-scale package only.

Absolute Maximum Ratings

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

OPA376, OPA2376, OPA4376UNIT
Supply VoltageVS
= (V+) – (V–)		+7V
Voltage(2)(V–) – 0.5 to (V+) + 0.5V
Signal Input TerminalsCurrent(2)±10mA
Output Short-Circuit(3)Continuous
Operating TemperatureTA–40 to +150°C
Storage TemperatureTA–65 to +150°C
Junction TemperatureTJ+150°C
Human Body Model4000V
ESD RatingCharged Device Model1000V
Machine Model200V

Related Variants

The following components are covered by the same datasheet.

Part NumberManufacturerPackage
OPA2376Texas Instruments—
OPA376Texas Instruments—
OPA376-Q1Texas Instruments—
OPA376-Q1.HTMLTexas Instruments—
OPA376AIDTexas Instruments—
OPA376AIDCKRTexas InstrumentsSC-70-5
OPA376AIDG4Texas Instruments—
OPA376AIDRTexas Instruments—
OPAX376Texas Instruments—
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