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OPA4350

Operational Amplifier

The OPA4350 is a operational amplifier from Texas Instruments. View the full OPA4350 datasheet below including key specifications, electrical characteristics, absolute maximum ratings.

OPA4350 shares its datasheet with OPA2350, whose page lists every part number it covers.

Official OPA4350 datasheet (PDF) — the source this page was extracted from.

Manufacturer

Texas Instruments

Category

Operational Amplifiers

OPA4350 Key Specifications

ParameterValue
Amplifier TypeCMOS
Input Bias Current0.5 pA
Current - Output / Channel40 mA
Quiescent Current5.2mA (x2 Channels)
Gain Bandwidth Product38 MHz
Mounting TypeSurface Mount
Number of Circuits2
Operating Temperature-40°C ~ 85°C
Output TypeRail-to-Rail
Package / Case8-SOIC (0.154", 3.90mm Width)
Slew Rate22V/µs
Supplier Device Package8-SOIC
Input Offset Voltage150 µV
Supply Voltage Span (Max)5.5 V
Supply Voltage Span (Min)2.7 V

OPA4350 Overview

Part: OPA2350UA — Texas Instruments (dual member of the OPA350/OPA2350/OPA4350 family)

Type: High-Speed, Single-Supply, Rail-to-Rail CMOS Operational Amplifier (Dual)

Description: 2.7–5.5 V, 38 MHz gain-bandwidth, 22 V/μs slew rate, rail-to-rail input/output CMOS op amp with 5 nV/√Hz noise and 0.0006% THD+N.

Operating Conditions:

  • Supply voltage: 2.7–5.5 V (±1.35 to ±2.75 V)
  • Specified temperature: -40 to 85 °C
  • Operating temperature: -55 to 150 °C
  • Minimum operating voltage: 2.5 V (typical)

Absolute Maximum Ratings:

  • Max supply voltage: 7 V
  • Input signal current: 10 mA
  • Input voltage range: (V-) - 0.3 V to (V+) + 0.3 V
  • Max junction temperature: 150 °C
  • Storage temperature: -55 to 150 °C
  • Lead temperature (soldering, 10 s): 300 °C

Key Specs:

  • Input offset voltage: ±150 μV typ, ±500 μV max (VS = 5 V, TA = 25 °C); ±1 mV max over -40 to 85 °C
  • Input bias current: ±0.5 pA typ, ±10 pA max
  • Gain-bandwidth product: 38 MHz (G = 1, CL = 100 pF)
  • Slew rate: 22 V/μs (G = 1)
  • Settling time: 0.22 μs (0.1%), 0.5 μs (0.01%), 2-V step
  • Input voltage noise density: 7 nV/√Hz at 10 kHz; 5 nV/√Hz at 100 kHz
  • Open-loop gain: 122 dB typ, 100 dB min (RL = 10 kΩ)
  • Output swing from rail: 10 mV typ, 50 mV max (RL = 10 kΩ); 25 mV typ, 200 mV max (RL = 1 kΩ)
  • Output current: ±40 mA; short-circuit current ±80 mA
  • Quiescent current: 5.2 mA typ, 7.5 mA max per amplifier (TA = 25 °C); 8.5 mA max over -40 to 85 °C
  • CMRR: 90 dB typ (VS = 5.5 V)

Features:

  • Rail-to-rail input and output (within 10 mV)
  • Wide bandwidth: 38 MHz
  • High slew rate: 22 V/μs
  • Low noise: 5 nV/√Hz
  • Low THD+Noise: 0.0006%
  • Unity-gain stable
  • 75 Ω video drive capability
  • MicroSize packages
  • Single, dual, and quad versions

Applications:

  • Cell phone PA control loops
  • Driving A/D converters
  • Video processing
  • Data acquisition
  • Process controls
  • Audio processing
  • Communications
  • Active filters
  • Test equipment

Package:

  • MSOP-8 / VSSOP-8 (DGK), 3.00 mm × 3.00 mm
  • SOIC-8 (D), 3.91 mm × 4.90 mm
  • PDIP-8 (P), 6.35 mm × 9.81 mm

OPA4350 Applications

  • Cell Phone PA Control Loops
  • Driving A/D Converters
  • Video Processing
  • Data Acquisition
  • Process Controls
  • Audio Processing
  • Communications
  • Active Filters
  • Test Equipment

OPA4350 Pin Configuration

OPA350: P, D, and DGK Packages 8-Pin PDIP, SOIC, and VSSOP Top View

OPA2350: P, D, and DGK Packages 8-Pin PDIP, SOIC, and VSSOP Top View

OPA4350 Electrical Characteristics

VS = 2.7 V to 5.5 V; All specifications at TA = 25°C, RL = 1 k Ω connected to VS/2 and VOUT = VS/2, unless otherwise noted.

PARAMETERPARAMETERPARAMETERTEST CONDITIONSMINTYP (1)MAXUNIT
OFFSET VOLTAGEOFFSET VOLTAGEOFFSET VOLTAGEOFFSET VOLTAGEOFFSET VOLTAGEOFFSET VOLTAGEOFFSET VOLTAGEOFFSET VOLTAGE
V S = 5 V±150±500μV
V OSInput offset voltageT A = - 40°C to 85°C±1mV
vs TemperatureT A = -40°C to 85°C±4μ V/°C
PSRRvs Power-supply
rejection ratio		V = 2.7 V to 5.5 V, V CM = 0 V
S		40150
175		μV/V
Channel separation (dual, quad)Channel separation (dual, quad)Channel separation (dual, quad)DC0.15μV/V
INPUT BIAS CURRENTINPUT BIAS CURRENTINPUT BIAS CURRENTINPUT BIAS CURRENTINPUT BIAS CURRENTINPUT BIAS CURRENT
IInput bias current±0.5±10pA
Bvs TemperatureSeeTypical Characteristics
I OSInput offset current±0.5±10pA
NOISENOISENOISENOISENOISENOISENOISENOISE
Input voltage noise, f = 100 Hz to 400kHz4μ Vrms
e nInput voltage noise density, f = 10 kHzInput voltage noise density, f = 10 kHz7nV/ √ Hz
Input current noise density, f = 100kHz5nV/ √ Hz
i nCurrent noise density, f = 10 kHzCurrent noise density, f = 10 kHz4fA/ √ Hz
INPUT VOLTAGE RANGEINPUT VOLTAGE RANGEINPUT VOLTAGE RANGEINPUT VOLTAGE RANGEINPUT VOLTAGE RANGEINPUT VOLTAGE RANGEINPUT VOLTAGE RANGEINPUT VOLTAGE RANGE
V CMCommon-mode voltagerangeT A = - 40°C to 85°C
V S = 2.7 V, - 0.1 V < V CM < 2.8 V		-0.1
66		84+ 0.1V
CMRRCommon-mode rejection ratioCommon-mode rejection ratioV S = 5.5 V, - 0.1 V < V CM < 5.6 V
T A = - 40°C to 85°C, V S = 5.5 V, - 0.1 V < V CM < 5.6 V		74
74		90dB
INPUT IMPEDANCEINPUT IMPEDANCE
Differential
Common-mode		INPUT IMPEDANCEINPUT IMPEDANCEINPUT IMPEDANCEINPUT IMPEDANCE
10 13 || 2.5
10 13 || 6.5		INPUT IMPEDANCEINPUT IMPEDANCE
Ω || pF
Ω || pF
OPEN-LOOP GAINOPEN-LOOP GAINOPEN-LOOP GAINOPEN-LOOP GAIN
R L = 10 k Ω , 50 mV < V O < (V+) -50 mV		OPEN-LOOP GAIN
100		OPEN-LOOP GAIN
122		OPEN-LOOP GAINOPEN-LOOP GAIN
A OLOpen-loop voltageT A = -40°C to 85°CR L = 10 k Ω , 50 mV < V O < (V+) -50 mV100
gainR L = 1 k Ω , 200 mV < V O < (V+) -200 mV
R L = 1 k Ω , 200 mV < V O < (V+) -200 mV		100
100		120dB
FREQUENCY RESPONSE (C L = 100 pF)FREQUENCY RESPONSE (C L = 100 pF)FREQUENCY RESPONSE (C L = 100 pF)FREQUENCY RESPONSE (C L = 100 pF)FREQUENCY RESPONSE (C L = 100 pF)FREQUENCY RESPONSE (C L = 100 pF)FREQUENCY RESPONSE (C L = 100 pF)FREQUENCY RESPONSE (C L = 100 pF)
GBWGain-bandwidth productG = 138MHz
SRSlew rate0.1%G = 1
G = ±1, 2-V		22
0.22		V/μs
Settling time0.01%Step0.5μs
Overload recovery timeV IN × G = V S0.1μs
THD+NTotal harmonic distortion
Differential gain error		+ noiseR L = 600 Ω , V O = 2.5 V PP (2) , G = 1, f = 1
G = 2, R L = 600 Ω , V O = 1.4 V (3)		0.0006%
0.17%
Differential phase errorG = 2, R L = 600 Ω , V O = 1.4 V (3)0.17°
OUTPUTOUTPUTOUTPUTOUTPUT
R L = 10 k Ω , A OL ≥ 100 dB		OUTPUTOUTPUT
10		OUTPUT
50		OUTPUT
V OUTVoltage output swing from rail (4)T A = -40°C toR L = 10 k Ω , A OL ≥ 100 dB50mV
85°CR L = 1 k Ω , A OL ≥ 100 dB25200
I OUTOutput current±40 (5)mA
I SCshort circuit current±80mA

OPA4350 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted) (1)

MINMAXUNIT
Supply voltageSupply voltage7V
Voltage(V - ) - 0.3(V+) + 0.3V
Current10mA
Open short circuit current (3)Open short circuit current (3)ContinuousContinuous
Operating temperatureOperating temperature-55150°C
Lead temperature (soldering, 10 s)Lead temperature (soldering, 10 s)300°C
Junction temperatureJunction temperature150°C
T stg Storage temperatureT stg Storage temperature-55150°C

OPA4350 Recommended Operating Conditions

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

MINNOMMAXUNIT
Power supply voltage, (V+)-(V-)2.7 (±1.35)5 (±2.5)5.5 (±2.75)V
Specified temperature-402585°C
Operating temperature-5525150°C

OPA4350 Thermal Information

THERMAL METRIC (1)OPA350, OPA2350 - DGK (VSSOP) - 8 PINSOPA350, OPA2350 - P (PDIP) - 8 PINSOPA350, OPA2350 - D (SOIC) - 8 PINSUNIT
R θ JAJunction-to-ambient thermal resistance169.253.1140.1°C/W
R θ JC(top)Junction-to-case (top) thermal resistance62.842.589.8°C/W
R θ JBJunction-to-board thermal resistance89.830.380.6°C/W
ψ JTJunction-to-top characterization parameter7.519.728.7°C/W
ψ JBJunction-to-board characterization parameter88.230.280.1°C/W
R θ JC(bot)Junction-to-case (bottom) thermal resistanceN/AN/AN/A°C/W

OPA4350 Typical Application

Low pass filters are commonly employed in signal processing applications to reduce noise and prevent aliasing. The OPAx350 are ideally suited to construct high speed, high precision active filters. Figure 29 illustrates a second order low pass filter commonly encountered in signal processing applications.

Variants on the same datasheet

These parts have exact links to the same datasheet. They are candidates to compare, not verified drop-in replacements; check package, pinout and electrical limits.

Part NumberManufacturerPackage
OPA2350Texas InstrumentsPDIP (8)
OPA2350EA/250Texas InstrumentsVSSOP-8
OPA2350EA/250G4Texas InstrumentsVSSOP-8
OPA2350EA/2K5Texas InstrumentsVSSOP-8
OPA2350EA/2K5G4Texas InstrumentsVSSOP-8
OPA2350UATexas Instruments8-SOIC (0.154", 3.90mm Width)
OPA2350UA/2K5Texas InstrumentsSOIC-8
OPA2350UA/2K5G4Texas InstrumentsSOIC-8
OPA2350UAG4Texas InstrumentsSOIC-8
OPA350Texas Instruments—
OPAX350Texas Instruments—

Other Operational Amplifiers

  • LM358 – onsemi, Dual Operational Amplifier
  • AD623A – Analog Devices, Rail-to-Rail Instrumentation Amplifier
  • AD623ARMZ-REEL7 – Analog Devices, Rail-to-Rail Instrumentation Amplifier
  • AD623ARZ – Analog Devices, Rail-to-Rail Instrumentation Amplifier
  • AD623ARZ-RL – Analog Devices, Rail-to-Rail Instrumentation Amplifier
  • AD623B – Analog Devices, Rail-to-Rail Instrumentation Amplifier
  • AD623BNZ – Analog Devices, Rail-to-Rail Instrumentation Amplifier
  • AD623BRZ-R7 – Analog Devices, Rail-to-Rail Instrumentation Amplifier

All Operational Amplifiers datasheetsAll Texas Instruments datasheets (2,442)

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