OPA320S

Part: OPA320AIDBVR (OPA320 family, SOT-23-5 DBV package) — Texas Instruments

Type: Precision Low-Noise RRIO CMOS Operational Amplifier

Description: 1.8–5.5 V, 20 MHz, 10 V/μs rail-to-rail I/O CMOS op amp with 150 μV max offset, 0.9 pA max input bias current, and 1.45 mA/channel quiescent current.

Operating Conditions:

• Supply voltage: 1.8–5.5 V (specified)
• Operating temperature: -40 to 125 °C (specified)
• Input common-mode range: (V-) - 0.1 V to (V+) + 0.1 V

Absolute Maximum Ratings:

• Max supply voltage: 6 V
• Signal input pin voltage: (V-) - 0.5 V to (V+) + 0.5 V
• Signal input pin current: ±10 mA
• Output short-circuit current: continuous
• Max junction temperature: 150 °C
• Storage temperature: -65 to 150 °C

Key Specs:

• Input offset voltage: 40 μV typ, 150 μV max (TA = 25 °C)
• Offset drift: 1.5 μV/°C typ, 5 μV/°C max (VS = 5.5 V, -40 to 125 °C)
• CMRR: 114 dB typ, 100 dB min (VS = 5.5 V, TA = 25 °C)
• PSRR: 5 μV/V typ, 20 μV/V max (VS = 1.8–5.5 V, TA = 25 °C)
• Input bias current: ±0.2 pA typ, ±0.9 pA max (25 °C); ±600 pA max for OPA320/OPA320S (-40 to 125 °C)
• Channel separation: 130 dB typ (1 kHz; dual versions)
• Noise: 7 nV/√Hz at 10 kHz
• Bandwidth 20 MHz, slew rate 10 V/μs, IQ 1.45 mA/ch (features list)
• Thermal resistance RθJA (SOT-23-5): 219.3 °C/W

Features:

• Zero-crossover distortion input stage with rail-to-rail I/O
• Output swings typically within 10 mV of the rails
• Unity-gain stable
• Shutdown mode on OPA320S/OPA2320S variants (0.1 μA IQ)
• ESD: HBM ±4000 V, CDM ±1000 V, MM ±200 V

Applications:

• High-Z sensor signal conditioning
• Transimpedance amplifiers
• Test and measurement equipment
• PLCs
• Motor control loops
• Communications
• ADC/DAC input/output buffers
• Active filters

Package:

• SOT-23 (5-pin DBV), 2.90 mm × 1.60 mm (OPA320)

• 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

• 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

OPA320 DBV Package 5-Pin SOT-23 Top View

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).

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

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

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.