Specifications
| Type | Description |
|---|---|
| Part Number | OPA350 |
| Manufacturer | Texas Instruments |
| Product Type | Operational Amplifier |
| Category | Signal Chain |
| Package Case | OPA350: MSOP/VSSOP-8 3.00mm x 3.00mm, SOIC-8 3.91mm x 4.90mm, PDIP-8 6.35mm x 9.81mm |
| Amplifier Topology | CMOS rail-to-rail input and output operational amplifier; OPA350 series description |
| Number of Channels | Single; OPA350 device variant |
| Gain Bandwidth Product | 38 MHz; G=1, CL=100pF |
| Slew Rate | 22 V/us; G=1, CL=100pF |
| Input Voltage Noise Density | 7 nV/sqrt(Hz); f=10kHz |
| Input Voltage Noise | 4 uVrms; f=100Hz to 400kHz |
| Current Noise Density | 4 fA/sqrt(Hz); f=10kHz |
| Total Harmonic Distortion Plus Noise | 0.0006 %; RL=600 ohm, VO=2.5Vpp, G=1, f=1kHz |
| Input Offset Voltage | typ +/-150 uV, max +/-500 uV; VS=5V, TA=25C |
| Input Offset Voltage Over Temperature | max +/-1 mV; TA=-40C to 85C |
| Input Offset Voltage Drift | typ +/-4 uV/C; TA=-40C to 85C |
| Power Supply Rejection Ratio | typ 40 uV/V, max 150 uV/V; VS=2.7V to 5.5V, VCM=0V |
| Channel Separation | typ 0.15 uV/V; dual and quad versions, DC |
| Input Bias Current | typ +/-0.5 pA, max +/-10 pA; TA=25C |
| Input Offset Current | typ +/-0.5 pA, max +/-10 pA; TA=25C |
| Common-Mode Input Voltage Range | min -0.1 V, max (V+) + 0.1 V; TA=-40C to 85C |
| Common-Mode Rejection Ratio at 2.7 V | min 66 dB, typ 84 dB; VS=2.7V, -0.1V < VCM < 2.8V |
| Common-Mode Rejection Ratio at 5.5 V | min 74 dB, typ 90 dB; VS=5.5V, -0.1V < VCM < 5.6V |
| Common-Mode Rejection Ratio Over Temperature | min 74 dB; TA=-40C to 85C, VS=5.5V, -0.1V < VCM < 5.6V |
| Differential Input Impedance | 10^13 ohm || 2.5 pF; electrical characteristics |
| Common-Mode Input Impedance | 10^13 ohm || 6.5 pF; electrical characteristics |
| Open-Loop Voltage Gain with 10k ohm Load | min 100 dB, typ 122 dB; RL=10k ohm, 50mV < VO < (V+) - 50mV |
| Open-Loop Voltage Gain with 1k ohm Load | min 100 dB, typ 120 dB; RL=1k ohm, 200mV < VO < (V+) - 200mV |
| Settling Time to 0.1% | 0.22 us; 0.1%, G=+/-1, 2V step |
| Settling Time to 0.01% | 0.5 us; 0.01%, G=+/-1, 2V step |
| Overload Recovery Time | 0.1 us; VIN x G = VS |
| Differential Gain Error | 0.17 %; G=2, RL=600 ohm, VO=1.4V, NTSC signal generator |
| Differential Phase Error | 0.17 degrees; G=2, RL=600 ohm, VO=1.4V, NTSC signal generator |
| Output Voltage Swing from Rail with 10k ohm Load | typ 10 mV, max 50 mV; RL=10k ohm, AOL >= 100dB |
| Output Voltage Swing from Rail Over Temperature | max 50 mV; TA=-40C to 85C, RL=10k ohm, AOL >= 100dB |
| Output Voltage Swing from Rail with 1k ohm Load | typ 25 mV, max 200 mV; RL=1k ohm, AOL >= 100dB |
| Output Current | +/-40 mA; see Figure 17 |
| Short-Circuit Current | +/-80 mA; electrical characteristics |
| Operating Voltage Range | min 2.7 V, max 5.5 V; TA=-40C to 85C |
| Minimum Operating Voltage | 2.5 V; electrical characteristics |
| Quiescent Current per Amplifier | typ 5.2 mA, max 7.5 mA; IO=0, TA=25C |
| Quiescent Current per Amplifier Over Temperature | max 8.5 mA; IO=0, TA=-40C to 85C |
| Recommended Supply Voltage | min 2.7 V, nom 5 V, max 5.5 V; (V+) - (V-), equivalent to +/-1.35V min, +/-2.5V nom, +/-2.75V max |
| Specified Temperature Range | min -40 C, nom 25 C, max 85 C; recommended operating conditions |
| Operating Temperature Range | min -55 C, nom 25 C, max 150 C; recommended operating conditions |
| Absolute Maximum Supply Voltage | 7 V; over operating free-air temperature range |
| Absolute Maximum Signal Input Voltage | (V-) - 0.3 V to (V+) + 0.3 V; signal input terminals |
| Absolute Maximum Signal Input Current | 10 mA; input terminals diode-clamped to supply rails |
| Open Short-Circuit Current | Continuous; short-circuit to ground, one amplifier per package |
| Absolute Maximum Operating Temperature | -55 C to 150 C; absolute maximum ratings |
| Maximum Junction Temperature | 150 C; absolute maximum ratings |
| Storage Temperature | -55 C to 150 C; absolute maximum ratings |
| Lead Temperature | 300 C; soldering, 10 seconds |
| ESD Rating HBM | +/-1000 V; all package types, ANSI/ESDA/JEDEC JS-001 |
| ESD Rating CDM | +/-1500 V; SOIC packages only, JEDEC JESD22-C101 |
| Thermal Resistance Junction-to-Ambient VSSOP-8 | 169.2 C/W; OPA350/OPA2350 DGK VSSOP-8 |
| Thermal Resistance Junction-to-Ambient PDIP-8 | 53.1 C/W; OPA350/OPA2350 P PDIP-8 |
| Thermal Resistance Junction-to-Ambient SOIC-8 | 140.1 C/W; OPA350/OPA2350 D SOIC-8 |
| Pin 2 Function | Inverting input; OPA350 8-pin PDIP, SOIC, VSSOP |
| Pin 3 Function | Noninverting input; OPA350 8-pin PDIP, SOIC, VSSOP |
| Pin 4 Function | Negative power supply; OPA350 8-pin PDIP, SOIC, VSSOP |
| Pin 6 Function | Output; OPA350 8-pin PDIP, SOIC, VSSOP |
| Pin 7 Function | Positive power supply; OPA350 8-pin PDIP, SOIC, VSSOP |
| Datasheet Status | request_only |
Product Overview
The OPA350 is a Texas Instruments single CMOS operational amplifier with rail-to-rail input and output behavior. Its signal-chain specifications include a 38 MHz gain bandwidth product at G=1 with 100 pF load capacitance, 22 V/us slew rate under the same condition, and 0.22 us settling to 0.1% for a 2 V step at G=+/-1.
Noise and linearity parameters include 7 nV/sqrt(Hz) input voltage noise density at 10 kHz, 4 uVrms input voltage noise from 100 Hz to 400 kHz, 4 fA/sqrt(Hz) current noise density at 10 kHz, and 0.0006% THD+N with a 600 ohm load, 2.5 Vpp output, unity gain, and 1 kHz input.
For implementation, the OPA350 is available in 8-pin MSOP/VSSOP, SOIC, and PDIP package cases. Pin functions include inverting input, noninverting input, negative supply, output, and positive supply. Supply operation is specified from 2.7 V to 5.5 V over -40 C to 85 C, with recommended nominal operation at 5 V.
Key Features
- Single CMOS rail-to-rail input and output amplifier
- 38 MHz gain bandwidth product at unity gain
- 22 V/us slew rate with 100 pF load
- 7 nV/sqrt(Hz) input voltage noise density
- 0.0006 % THD+N at 1 kHz condition
- 2.7 V to 5.5 V operating voltage range
- Typ 5.2 mA quiescent current per amplifier
- Rail output swing to 10 mV typical with 10k load
- 0.22 us settling time to 0.1%
- Available in MSOP/VSSOP-8, SOIC-8, and PDIP-8
Typical Applications
- Rail-to-rail signal conditioning
- Low-noise signal-chain amplification
- Unity-gain buffer stages
- NTSC signal generator interfaces
- Single-channel analog output buffering
- Low-bias-current sensor front ends
- 2.7 V to 5.5 V analog systems
Procurement Notes
When requesting a quote for OPA350, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For analog and signal-chain sourcing, supply voltage, bandwidth, accuracy, noise level, package, temperature grade, input/output configuration and qualification requirements should be verified before approval.
FAQ
What type of amplifier is the OPA350?
The OPA350 is a Texas Instruments single CMOS rail-to-rail input and output operational amplifier. It is categorized as a Signal_Chain device and is specified with 38 MHz gain bandwidth product and 22 V/us slew rate at unity gain with 100 pF load capacitance.
What supply voltage range does OPA350 support?
OPA350 is specified for operation from 2.7 V to 5.5 V across -40 C to 85 C. The recommended supply voltage entry lists 2.7 V minimum, 5 V nominal, and 5.5 V maximum.
Which packages are listed for the OPA350?
The OPA350 package information lists MSOP/VSSOP-8 at 3.00 mm x 3.00 mm, SOIC-8 at 3.91 mm x 4.90 mm, and PDIP-8 at 6.35 mm x 9.81 mm.
What are the main noise specifications for OPA350?
The extracted specifications list 7 nV/sqrt(Hz) input voltage noise density at 10 kHz, 4 uVrms input voltage noise from 100 Hz to 400 kHz, and 4 fA/sqrt(Hz) current noise density at 10 kHz.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: June 30, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.