OPA2340

Part: OPA2340 (OPAx340 family: OPA340, OPA2340, OPA4340) — Texas Instruments

Type: Single-Supply Rail-to-Rail CMOS Operational Amplifier (dual)

Description: Dual rail-to-rail input/output CMOS op amp with 5.5 MHz gain-bandwidth, 6 V/μs slew rate, 750 μA/channel typical quiescent current, operating from a 2.5 V to 5.5 V single supply.

Operating Conditions:

• Supply voltage: 2.7–5.5 V specified (operation down to 2.5 V)
• Operating temperature: -40 to 85 °C specified; -55 to 125 °C operating range
• Input common-mode range: -0.3 V to (V+) + 0.3 V

Absolute Maximum Ratings:

• Max supply voltage: 5.5 V
• Signal input terminal current: 10 mA
• Output short circuit: continuous
• Max junction temperature: 150 °C
• Storage temperature: -55 to 125 °C

Key Specs:

• Input offset voltage: ±150 μV typ, ±500 μV max (VS = 5 V)
• Input offset voltage drift: ±2.5 μV/°C typ (-40 to 85 °C)
• Input bias current: ±0.2 pA typ, ±10 pA max (25 °C)
• Gain-bandwidth product: 5.5 MHz (G = 1)
• Slew rate: 6 V/μs (VS = 5 V, G = 1, CL = 100 pF)
• Open-loop gain: 100 dB min, 120 dB typ (RL = 10 kΩ)
• CMRR: 70 dB min, 84 dB typ (VS = 5 V, -0.3 V < VCM < 5.3 V)
• Voltage noise density: 25 nV/√Hz at 1 kHz
• THD+N: 0.0007% (VS = 5 V, VO = 3 VPP, G = 1, f = 1 kHz)
• Output short-circuit current: ±50 mA typ

Features:

• Rail-to-rail input
• Rail-to-rail output (within 1 mV)
• Micro-size packages
• Wide bandwidth (5.5 MHz) and high slew rate (6 V/μs)
• Low THD + noise
• Low quiescent current
• Single, dual, and quad versions

Applications:

• Driving A/D converters
• PCMCIA cards
• Data acquisition
• Process control
• Audio processing
• Communications
• Active filters
• Test equipment

Package:

• PDIP (8) — 9.81 mm × 6.35 mm
• SOIC (8) — 4.90 mm × 3.91 mm
• VSSOP (8) — 3.00 mm × 3.00 mm

• 1 · Rail-to-Rail Input
• Rail-to-Rail Output (Within 1 mV)
• Micro Size Packages
• Wide Bandwidth: 5.5 MHz
• High Slew Rate: 6 V/μs
• Low THD + Noise: 0.0007% (f = 1 kHz)
• Low Quiescent Current: 750 μA/Channel
• Single, Dual, and Quad Versions

• Driving A/D Converters
• PCMCIA Cards
• Data Acquisition
• Process Control
• Audio Processing
• Communications
• Active Filters
• Test Equipment

OPA340: DBV Package 5-Pin SOT-23 Top View

Pin Functions: OPA340

At TA = 25°C, RL = 10 k Ω connected to VS/2, and VOUT = VS/2, unless otherwise noted.

At TA = 25°C, RL = 10 k Ω connected to VS/2, and VOUT = VS/2, unless otherwise noted.

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

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

The OPAx340 amplifier is a single-supply, CMOS operational amplifier with 5.5-MHz unity-gain bandwidth and supply current of 950 μA. Its performance is optimized for low-voltage (2.7 V to 5.5 V), single-supply applications, with its input common-mode voltage linear range extending 300 mV beyond the rails and the output voltage swing within 5 mV of either rail. The OPAx340 series features wide bandwidth and unity-gain stability with rail-torail input and output for increased dynamic range. Power-supply pins must be bypassed with 0.01-μF ceramic capacitors.