OPA2320
Operational AmplifierThe OPA2320 is a operational amplifier from Texas Instruments. View the full OPA2320 datasheet below including electrical characteristics, absolute maximum ratings.
Manufacturer
Texas Instruments
Category
Operational Amplifier
Package
SON (10)
Overview
Part: OPAx320x — Texas Instruments
Type: Precision, Low-Voltage CMOS Operational Amplifier
Description: A new generation of precision, low-voltage CMOS operational amplifiers optimized for very low noise (7 nV/√Hz at 10 kHz) and wide bandwidth (20 MHz) while operating on a low quiescent current of only 1.45 mA.
Operating Conditions:
- Supply voltage: 1.8 V to 5.5 V
- Operating temperature: -40 to 125 °C
Absolute Maximum Ratings:
- Max supply voltage: 6 V
- Max junction temperature: 150 °C
- Max storage temperature: 150 °C
Key Specs:
- Input offset voltage (VOS): 40 μV (typ), 150 μV (max)
- Input offset voltage vs temperature (dVOS/dT): 1.5 μV/°C (typ), 5 μV/°C (max) at VS = 5.5 V, TA = -40°C to 125°C
- Input bias current (IB): ±0.2 pA (typ), ±0.9 pA (max) at TA = 25°C
- Common-mode rejection ratio (CMRR): 114 dB (typ) at VS = 5.5 V, TA = 25°C
- Input voltage noise density (en): 7 nV/√Hz (typ) at f = 10 kHz
- Input current noise density (in): 0.6 fA/√Hz (typ) at f = 1 kHz
- Open-loop gain (AOL): 132 dB (typ) at 0.1 V < VO < (V+) - 0.1 V, RL = 10 kΩ, TA = 25°C
- Quiescent current: 1.45 mA/Ch
Features:
- Precision with Zero-Crossover Distortion
- Rail-to-Rail I/O
- Unity-Gain Stable
- Low Input Bias Current
- Low Noise
- Wide Bandwidth
- Slew Rate: 10 V/μs
- IQ in Shutdown Mode: 0.1 μA (OPA320S and OPA2320S)
Applications:
- High-Z Sensor Signal Conditioning
- Transimpedance Amplifiers
- Test and Measurement Equipment
- Programmable Logic Controllers (PLCs)
- Motor Control Loops
- Communications
- Input/Output ADC/DAC Buffers
- Active Filters
Package:
- SOT-23 (5-pin)
- SOT-23 (6-pin)
- VSSOP (8-pin)
- SOIC (8-pin)
- SON (10-pin)
- VSSOP (10-pin)
Features
- 1 · Precision with Zero-Crossover Distortion:
- -Low Offset Voltage: 150 μV (Maximum)
- -High CMRR: 114 dB
- -Rail-to-Rail I/O
- Low Input Bias Current: 0.9 pA (Maximum)
- Low Noise: 7 nV/ √ Hz at 10 kHz
- Wide Bandwidth: 20 MHz
- Slew Rate: 10 V/μs
- Quiescent Current: 1.45 mA/Ch
- Single-Supply Voltage Range: 1.8 V to 5.5 V
- OPA320S and OPA2320S:
- -IQ in Shutdown Mode: 0.1 μA
- Unity-Gain Stable
- Small Packages:
- -SOT-23, VSSOP, SON, and SOIC
Applications
- High-Z Sensor Signal Conditioning
- Transimpedance Amplifiers
- Test and Measurement Equipment
- Programmable Logic Controllers (PLCs)
- Motor Control Loops
- Communications
- Input/Output ADC/DAC Buffers
- Active Filters
Pin Configuration
OPA320 DBV Package 5-Pin SOT-23 Top View
Electrical Characteristics
At VS = 1.8 V to 5.5 V or ±0.9 V to ±2.75 V, TA = 25°C, RL = 10 k Ω connected to VS/2, VCM = VS/2, VOUT = VS/2, and SHDN x = VS+ (unless otherwise noted).
| PARAMETER | PARAMETER | TEST CONDITIONS | TEST CONDITIONS | MIN | TYP | MAX | UNIT |
|---|---|---|---|---|---|---|---|
| OFFSET VOLTAGE | OFFSET VOLTAGE | OFFSET VOLTAGE | OFFSET VOLTAGE | OFFSET VOLTAGE | OFFSET VOLTAGE | OFFSET VOLTAGE | OFFSET VOLTAGE |
| V OS | Input offset voltage | 40 | 150 | μV | |||
| dV OS /dT | Input offset voltage vs temperature | V S = 5.5 V, T A = -40°C to 125°C | V S = 5.5 V, T A = -40°C to 125°C | 1.5 | 5 | μV/°C | |
| PSR | Input offset voltage vs power supply | V S = 1.8 V to 5.5 V, T A = 25°C | V S = 1.8 V to 5.5 V, T A = 25°C | 5 | 20 | μV/V | |
| PSR | Input offset voltage vs power supply | V S = 1.8 V to 5.5 V, T A = -40°C to 125°C | V S = 1.8 V to 5.5 V, T A = -40°C to 125°C | 15 | |||
| Channel separation | 1 kHz | 1 kHz | 130 | dB | |||
| INPUT VOLTAGE | INPUT VOLTAGE | INPUT VOLTAGE | INPUT VOLTAGE | INPUT VOLTAGE | INPUT VOLTAGE | INPUT VOLTAGE | INPUT VOLTAGE |
| V CM | Common-mode | voltage | voltage | (V-) - 0.1 | (V+) + 0.1 | V | |
| CMRR | Common-mode rejection ratio | V S = 5.5 V, (V-) - 0.1 V < V CM < (V+) + 0.1 V, T A = 25°C | V S = 5.5 V, (V-) - 0.1 V < V CM < (V+) + 0.1 V, T A = 25°C | 100 | 114 | dB | |
| CMRR | Common-mode rejection ratio | V S = 5.5 V, (V-) - 0.1 V < V CM < (V+) + 0.1 V, T A = -40°C to 125°C | V S = 5.5 V, (V-) - 0.1 V < V CM < (V+) + 0.1 V, T A = -40°C to 125°C | 96 | |||
| INPUT BIAS CURRENT | INPUT BIAS CURRENT | INPUT BIAS CURRENT | INPUT BIAS CURRENT | INPUT BIAS CURRENT | INPUT BIAS CURRENT | INPUT BIAS CURRENT | INPUT BIAS CURRENT |
| I B | Input bias current | T A = 25°C | T A = 25°C | ±0.2 | ±0.9 | pA | |
| I B | Input bias current | T A = -40°C to 85°C | T A = -40°C to 85°C | ±50 | pA | ||
| I B | Input bias current | T A = -40°C to 125°C | OPA2320 and OPA2320S | ±400 | pA | ||
| I B | Input bias current | T A = -40°C to 125°C | OPA320 and OPA320S | ±600 | pA | ||
| I OS | Input offset current | T A = 25°C | T A = 25°C | ±0.2 | ±0.9 | pA | |
| I OS | Input offset current | T A = -40°C to 85°C | T A = -40°C to 85°C | ±50 | pA | ||
| I OS | Input offset current | T A = -40°C to 125°C | T A = -40°C to 125°C | ±400 | pA |
Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted) (1)
| MIN | MAX | UNIT | ||
|---|---|---|---|---|
| Voltage | Supply, V S = (V+) - (V-) | 6 | V | |
| Voltage | Signal input pin (2) | (V-) - 0.5 | (V+) + 0.5 | V |
| Signal input pin (2) | -10 | 10 | mA | |
| Output short-circuit current (3) | Continuous | Continuous | mA | |
| Temperature | Operating range, T A | -40 | 150 | °C |
| Temperature | Junction, T J | 150 | °C | |
| Temperature | Storage, T stg | -65 | 150 | °C |
Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
| MIN | MAX | UNIT | ||
|---|---|---|---|---|
| V S | Specified voltage | 1.8 | 5.5 | V |
| T A | Specified temperature | -40 | 125 | °C |
Thermal Information
| THERMAL METRIC | OPA320 DBV (SOT-23) | OPA320S DBV (SOT-23) | UNIT | |
|---|---|---|---|---|
| 5 PINS | 6 PINS | |||
| R θ JA | Junction-to-ambient thermal resistance (1) | 219.3 | 177.5 | °C/W |
| R θ JC(top) | Junction-to-case(top) thermal resistance | 107.5 | 108.9 | °C/W |
| R θ JB | Junction-to-board thermal resistance | 57.5 | 27.4 | °C/W |
| ψ JT | Junction-to-top characterization parameter | 7.4 | 13.3 | °C/W |
| ψ JB | Junction-to-board characterization parameter | 56.9 | 26.9 | °C/W |
| R θ JC(bot) | Junction-to-case(bottom) thermal resistance | - | - | °C/W |
Typical Application
The OPA320 family offers outstanding DC and AC performance. These devices operate up to a 5.5-V power supply and offer ultra-low input bias current and 20-MHz bandwidth. These features make the OPA320 family a robust operational amplifier for both battery-powered and industrial applications.
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