OPA1641-Q1 Datasheet, PDF (1/31 Pages) Texas Instruments – SoundPlus JFET-Input, Automotive-Grade, Audio Operational Amplifiers

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OPA1641-Q1, OPA1642-Q1
SBOS791 – JUNE 2017
OPA164x-Q1 SoundPlus™ JFET-Input, Automotive-Grade, Audio Operational Amplifiers
1 Features
•1 Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results:
– Device Temperature Grade 1: –40°C to
+125°C Ambient Operating Temperature
– Device HBM ESD Classification Level 2
– Device CDM ESD Classification Level C6
• Low Noise: 5.1 nV/√Hz at 1 kHz
• Ultra-low Distortion: 0.00005% at 1 kHz
• High Slew Rate: 20 V/μs
• Unity Gain Stable
• No Phase Reversal
• Low Quiescent Current:
1.8 mA per Channel
• Rail-to-Rail Output
• Wide Supply Range: ±2.25 V to ±18 V
• Single, Dual, and Quad Versions Available
2 Applications
• Automotive
• HEV and EV Power Train
• Advanced Driver Assist (ADAS)
• Infotainment Systems
• In-Cabin Microphones
3 Description
The OPA1641-Q1 (single) and OPA1642-Q1 (dual)
series are JFET-input, ultra-low distortion, low-noise
operational amplifiers (op amps) fully specified for
audio applications.
The rail-to-rail output swing allows increased
headroom, making these devices ideal for use in any
audio circuit. Features include 5.1-nV/√Hz noise, low
total harmonic distortion + noise (THD+N)
(0.00005%), a low input bias current of 2 pA, and low
quiescent current of 1.8 mA per channel.
These devices operate over a very wide supply
voltage range of ±2.25 V to ±18 V. The OPA164x-Q1
series of operational amplifiers are unity-gain stable
and provide excellent dynamic behavior over a wide
range of load conditions.
The dual version features completely independent
circuitry for lowest crosstalk and freedom from
interactions between channels, even when overdriven
or overloaded.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
OPA1641-Q1
SOIC (8)
VSSOP (8)
4.90 mm × 3.90 mm
3.00 mm × 3.00 mm
OPA1642-Q1
SOIC (8)
VSSOP (8)
4.90 mm × 3.90 mm
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
space
Simplified Internal Schematic
V+
Extremely Stable Input Capacitance
7.5
7
Traditional JFET-Input Amplifier
6.5
6
OPA164x Family
Pre-Output Driver
OUT
5.5
IN–
IN+
5
4.5
V–
Copyright © 2017 Texas Instruments Inc.
4
–10 –8 –6 –4 –2 0 2 4 6 8 10
Common-Mode Voltage (V)
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.