Specifications
| Type | Description |
|---|---|
| Part Number | OPA1622 |
| Manufacturer | Texas Instruments |
| Product Type | Operational Amplifier |
| Category | Signal Chain |
| Component Type | Other |
| Package Case | VSON-10 (DRC), 3.00 mm x 3.00 mm |
| Amplifier channels | 2 |
| Input type | Bipolar input |
| Input voltage noise density | 2.8 nV/√Hz typ |
| THD+N | -119 dB typ |
| Gain-bandwidth product | 32 MHz typ |
| Slew rate | 10 V/μs typ |
| Capacitive load drive capability | >600 pF |
| Open-loop gain | 136 dB typ |
| Quiescent current | 2.6 mA typ, 3.3 mA max |
| Quiescent current over temperature | 4.2 mA max |
| Shutdown current | 5 μA typ, 10 μA max |
| Recommended single-supply voltage | 4 V min, 36 V max |
| Recommended dual-supply voltage | ±2 V min, ±18 V max |
| Specified temperature range | -40°C to +125°C |
| Absolute maximum supply voltage | 40 V max |
| Absolute maximum input voltage | (V-) - 0.5 V to (V+) + 0.5 V |
| Absolute maximum input differential voltage | ±0.5 V |
| Absolute maximum input current | ±10 mA |
| Output short-circuit rating | Continuous |
| Absolute maximum operating temperature | -55°C to +125°C |
| Absolute maximum junction temperature | 200°C |
| Storage temperature | -65°C to +150°C |
| HBM ESD rating | ±4000 V |
| CDM ESD rating | ±1500 V |
| THD+N | 0.000024%, -132 dB typ |
| THD+N | 0.000025%, -132 dB typ |
| THD+N | 0.000071%, -123 dB typ |
| THD+N | 0.000149%, -116 dB typ |
| THD+N | 0.000214%, -113 dB typ |
| Intermodulation distortion | 0.000018%, -135 dB typ |
| Intermodulation distortion | 0.00005%, -126 dB typ |
| Gain-bandwidth product | 8 MHz typ |
| Full-power bandwidth | 1.6 MHz typ |
| Overload recovery time | 300 ns typ |
| Channel separation | 140 dB typ |
| Input voltage noise | 2.1 μVPP typ |
| Input voltage noise density | 10 nV/√Hz typ |
| Input voltage noise density | 4 nV/√Hz typ |
| Input current noise density | 2.5 pA/√Hz typ |
| Input current noise density | 0.8 pA/√Hz typ |
| Input offset voltage | ±100 μV typ, ±500 μV max |
| Input offset voltage over temperature | ±600 μV max |
| Input offset voltage drift | 0.5 μV/°C typ, 2.5 μV/°C max |
| Power-supply rejection ratio | 0.1 μV/V typ, 3 μV/V max |
| Input bias current | 1.2 μA typ, 2.0 μA max |
| Input bias current over temperature | 2.2 μA max |
| Input offset current | ±10 nA typ, ±50 nA max |
| Input offset current over temperature | ±80 nA max |
| Common-mode voltage range | (V-) + 1.5 V to (V+) - 1 V |
| Common-mode rejection ratio | 110 dB min, 127 dB typ |
| Differential input impedance | 60 kΩ || 0.8 pF |
| Common-mode input impedance | 500 MΩ || 0.9 pF |
| Open-loop voltage gain | 114 dB min, 120 dB typ |
| Open-loop voltage gain | 120 dB min, 136 dB typ |
| Positive output swing from rail | 800 mV typ |
| Positive output swing from rail | 900 mV typ |
| Negative output swing from rail | 800 mV typ |
| Negative output swing from rail | 900 mV typ |
| Short-circuit current | +145 mA / -130 mA typ |
| Enable logic high threshold | 0.82 V typ, 0.95 V max |
| Enable logic low threshold | 0.78 V typ, 0.65 V min |
| Enable high input current | 1.5 μA typ |
| Junction-to-ambient thermal resistance | 47.6°C/W |
| Junction-to-case top thermal resistance | 58.1°C/W |
| Junction-to-board thermal resistance | 22.0°C/W |
| Junction-to-case bottom thermal resistance | 4.1°C/W |
| Enable pin function | Shutdown on logic low, enable on logic high |
| Thermal pad connection | Connect thermal die pad to V- |
| Datasheet Status | request_only |
Product Overview
Texas Instruments OPA1622 is a dual audio operational amplifier for Signal Chain designs requiring two bipolar-input amplifier channels. Key audio parameters include 2.8 nV/√Hz typical input voltage noise density at 1 kHz, multiple THD+N operating points down to 0.000024% or -132 dB typical, and 140 dB typical channel separation at 1 kHz.
The amplifier operates from 4 V to 36 V single supply or ±2 V to ±18 V dual supply across the recommended -40°C to +125°C temperature range. Electrical limits include 40 V maximum supply voltage, ±0.5 V maximum differential input voltage, and continuous output short-circuit rating to VS/2 for one amplifier per package.
OPA1622 is supplied in a VSON-10 (DRC), 3.00 mm x 3.00 mm package. The exposed thermal die pad is specified for connection to V-, with DRC package thermal data including 47.6°C/W junction-to-ambient resistance and 4.1°C/W junction-to-case bottom resistance. The EN pin provides shutdown on logic low and enable on logic high.
Key Features
- Dual-channel audio operational amplifier optimised for high-fidelity sound
- Ultra-low input voltage noise density of 2.8 nV/√Hz at 1 kHz
- Wide gain-bandwidth product of 32 MHz for high-speed audio processing
- Rail-to-rail output swing maximising dynamic range in portable designs
- Low total harmonic distortion plus noise (THD+N) for clean audio reproduction
- Wide supply range: 4 V to 36 V single supply or ±2 V to ±18 V dual supply
- High output current drive capability suitable for headphone amplifiers
- VSON-10 (DRC) 3.00 mm × 3.00 mm compact package for space-constrained designs
- Unity-gain stable with capacitive load tolerance for robust system integration
- Quiescent current of 2.6 mA per channel balancing power and performance
Typical Applications
- High-fidelity headphone amplifiers for portable audio players
- Professional audio mixing consoles and studio equipment
- Active filter circuits for audio pre-amplification stages
- Line driver and receiver circuits in consumer audio systems
- Portable battery-powered audio devices requiring low power consumption
- Audio signal conditioning in automotive infotainment systems
- Analog-to-digital converter (ADC) driver stages for audio codecs
- Multimedia speakers and soundbar amplifier stages
- Medical audio monitoring and diagnostic equipment
- Voice communication and telephony audio processing
Procurement Notes
When requesting a quote for OPA1622, 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
How many amplifier channels does OPA1622 provide?
OPA1622 provides two amplifier channels. The extracted datasheet facts identify it as a dual operational amplifier and as a dual audio operational amplifier in the Texas Instruments Signal_Chain category.
What supply ranges are recommended for OPA1622?
The recommended single-supply range is 4 V to 36 V. The recommended dual-supply range is ±2 V to ±18 V, with operation specified over -40°C to +125°C.
What package is specified for OPA1622?
OPA1622 is specified in a VSON-10 (DRC), 3.00 mm x 3.00 mm package. The exposed thermal die pad on the underside is specified to connect to V-.
What are the OPA1622 noise and distortion figures?
The datasheet facts list 2.8 nV/√Hz typical input voltage noise density at 1 kHz and -119 dB typical THD+N at 142 mW per channel into 32 Ω per channel.
Is the OPA1622 unity-gain stable and suitable for buffer applications?
Yes, the OPA1622 is unity-gain stable, making it suitable for buffer and voltage-follower configurations in audio signal chains.
What is the typical quiescent current of the OPA1622?
The OPA1622 draws a typical quiescent current of 2.6 mA per channel, balancing low power consumption with high audio performance for portable and battery-powered applications.
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.