OPA4376-Q1

Part: OPA4376AIPWR — Texas Instruments

Type: Low-Noise Precision Operational Amplifier (quad, e-trim series)

Description: Quad, 2.2–5.5 V supply, rail-to-rail input/output precision op amp with 5.5 MHz gain-bandwidth, 7.5 nV/√Hz noise at 1 kHz, 25 μV maximum offset and 760 μA typical quiescent current (per the OPAx376 family datasheet), in a TSSOP-14 package.

Operating Conditions:

• Supply voltage: 2.2–5.5 V
• Operating temperature: -40 to 150 °C (specified range: -40 to 125 °C)
• Common-mode range: (V-) - 0.1 V to (V+) + 0.1 V

Absolute Maximum Ratings:

• Max supply voltage: 7 V
• Signal input pin voltage: (V-) - 0.5 V to (V+) + 0.5 V
• Signal input pin current: ±10 mA
• Output short-circuit: continuous
• Max junction temperature: 150 °C
• Storage temperature: -65 to 150 °C

Key Specs:

• Input offset voltage: 5 μV typ, 25 μV max (TA = 25 °C)
• Offset drift: 0.26 μV/°C typ (-40 to +85 °C); 0.32 μV/°C typ, 2 μV/°C max (-40 to +125 °C)
• Input bias current: 0.2 pA typ, 10 pA max (TA = 25 °C)
• Noise: 7.5 nV/√Hz at 1 kHz; 0.8 μVPP (0.1–10 Hz)
• Gain-bandwidth product: 5.5 MHz; slew rate 2 V/μs (G = 1, VS = 5.5 V)
• Open-loop gain: 134 dB typ, 120 dB min (RL = 10 kΩ)
• CMRR: 90 dB typ, 76 dB min
• Quiescent current: 760 μA typ, 950 μA max per the table (TA = 25 °C, VS = 5.5 V); 1 mA max over -40 to +125 °C
• Short-circuit current: +30 / -50 mA
• THD+N: 0.00027% (VO = 1 VRMS, G = 1, f = 1 kHz, RL = 10 kΩ)

Features:

• Rail-to-rail input and output
• Single-supply operation
• Low noise and low quiescent current
• e-trim offset trimming
• Thermal resistance RθJA of 107.8 °C/W (TSSOP-14)

Applications:

• ADC buffer
• Audio equipment
• Medical instrumentation
• Handheld test equipment
• Active filtering
• Sensor signal conditioning

Package:

• TSSOP (14), PW, 5.00 mm × 4.40 mm

• ADC Buffer
• Audio Equipment
• Medical Instrumentation
• Handheld Test Equipment

The OPA376 family represents a new generation of low-noise operational amplifiers with e-trim™, offering outstanding dc precision and ac performance. Rail-torail input and output, low offset (25 μ V, maximum), low noise (7.5 nV/ √ Hz), quiescent current of 950 μ A (maximum), and a 5.5-MHz bandwidth make this part very attractive for a variety of precision and portable applications. In addition, this device has a reasonably wide supply range with excellent PSRR, making it attractive for applications that run directly from batteries without regulation.

The OPA376 (single version) is available in Micro SIZE SC70-5, SOT-23-5, and SOIC-8 packages. The OPA2376 (dual) is offered in the DSBGA-8, VSSOP-8, and SOIC-8 packages. The OPA4376 (quad) is offered in a TSSOP-14 package. All versions are specified for operation from -40°C to +125°C.

OPA376: DBV Package 5-Pin SOT23 Top View

• (1) NC denotes no internal connection.

OPA376: D Package 8-Pin SOIC Top View

Pin Functions: OPA376

OPA376: DCK Package 5-Pin SC70-5 Top View

Pin Functions: OPA376

At TA = 25°C, RL = 10 k Ω connected to VS / 2, VCM = 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 OPA376 family of operational amplifiers is built using e-trim , a proprietary technique in which offset voltage is adjusted during the final steps of manufacturing. This technique compensates for performance shifts that can occur during the molding process. Through e-trim , the OPA376 family delivers excellent offset voltage (5 μ V, typical). Additionally, the amplifier boasts a fast slew rate, low drift, low noise, and excellent PSRR and AOL. These 5.5-MHz CMOS op amps operate on 760μ A (typical) quiescent current.