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OPA4991-Q1 Datasheet Preview

OPA4991-Q1 Datasheet

Low Noise Op Amp

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OPA2991-Q1, OPA4991-Q1
SBOSA12B – MARCH 2020 – REVISED MARCH 2021
OPAx991-Q1 Automotive, 40-V Rail-to-Rail Input/Output, Low Offset Voltage,
Low Noise Op Amp
1 Features
3 Description
• AEC-Q100 qualified for automotive applications
The OPAx991-Q1 family (OPA991-Q1, OPA2991-Q1,
– Temperature grade 1: –40°C to +125°C, TA
– Device HBM ESD classification level 2A
– Device CDM ESD classification level C6
• Low offset voltage: ±125 µV
• Low offset voltage drift: ±0.3 µV/°C
• Low noise: 10.8 nV/√ Hz at 1 kHz
• High common-mode rejection: 130 dB
• Low bias current: ±10 pA
• Rail-to-rail input and output
• Wide bandwidth: 4.5 MHz GBW
• High slew rate: 21 V/µs
and OPA4991-Q1) is a family of high voltage (40 V)
general purpose operational amplifiers for automotive
application. These devices offer exceptional DC
precision and AC performance, including rail-to-rail
input/output, low offset (±125 µV, typ), low offset drift
(±0.3 µV/°C, typ), low noise (10.8 nV/√ Hz and 1.8
µVPP), and 4.5-MHz bandwidth.
Unique features such as differential and common-
mode input-voltage range to the supply rail, high
output current (±75 mA), high slew rate (21 V/µs), and
high capacitive load drive (1 nF) make the OPAx991-
Q1 a robust, high-performance operational amplifier
• High capacitive load drive: 1 nF
for high-voltage automotive applications.
• MUX-friendly/comparator inputs
– Amplifier operates with differential inputs up to
supply rail
– Amplifier can be used in open-loop or as
comparator
• Low quiescent current: 560 µA per amplifier
• Wide supply: ±1.35 V to ±20 V, 2.7 V to 40 V
• Robust EMIRR performance: EMI/RFI filters on
input and supply pins
The OPAx991-Q1 family of op amps is available in
standard packages (such as SOT-23, SOIC, VSSOP,
and TSSOP) and is specified from –40°C to 125°C.
Device Information
PART NUMBER(1)
PACKAGE
BODY SIZE (NOM)
OPA991-Q1
SOT-23 (5)(2)
2.90 mm × 1.60 mm
OPA2991-Q1
SOIC (8)(2)
VSSOP (8)
4.90 mm × 3.90 mm
3.00 mm × 3.00 mm
2 Applications
• Optimized for AEC-Q100 grade 1 applications
Infotainment and cluster
OPA4991-Q1
SOIC (14)(2)
SOT-23 (14)(2)
TSSOP (14)(2)
8.65 mm × 3.90 mm
4.20 mm × 1.90 mm
5.00 mm × 4.40 mm
Passive safety
Body electronics and lighting
HEV/EV inverter and motor control
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
(2) Package is preview only.
On-board (OBC) and wireless charger
Analog Inputs
Powertrain current sensor
REF3140
RC Filter OPA375
RC Filter
Advanced driver assistance systems (ADAS)
High-side current sensing
Bridge Sensor
Thermocouple
Current Sensing
MUX509
OPA991
+
+
OPA991
Gain Network
Gain Network
Gain Network
OPA991
+
Reference Driver
Antialiasing
Filter
VINP
REF
ADS8860
VINM
Photo
LED Detector
Optical Sensor
High-Voltage Multiplexed Input
High-Voltage Level Translation
VCM
OPAx991-Q1 in a High-Voltage Signal Chain
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.




etcTI

OPA4991-Q1 Datasheet Preview

OPA4991-Q1 Datasheet

Low Noise Op Amp

No Preview Available !

OPA2991-Q1, OPA4991-Q1
SBOSA12B – MARCH 2020 – REVISED MARCH 2021
www.ti.com
Table of Contents
1 Features............................................................................1
2 Applications..................................................................... 1
3 Description.......................................................................1
4 Revision History.............................................................. 2
5 Pin Configuration and Functions...................................3
6 Specifications.................................................................. 6
6.1 Absolute Maximum Ratings ....................................... 6
6.2 ESD Ratings............................................................... 6
6.3 Recommended Operating Conditions ........................6
6.4 Thermal Information for Single Channel .................... 6
6.5 Thermal Information for Dual Channel .......................7
6.6 Thermal Information for Quad Channel ..................... 7
6.7 Electrical Characteristics ............................................8
6.8 Typical Characteristics.............................................. 10
7 Detailed Description......................................................17
7.1 Overview................................................................... 17
7.2 Functional Block Diagram......................................... 17
7.3 Feature Description...................................................18
7.4 Device Functional Modes..........................................26
8 Application and Implementation.................................. 27
8.1 Application Information............................................. 27
8.2 Typical Applications.................................................. 27
9 Power Supply Recommendations................................29
10 Layout...........................................................................30
10.1 Layout Guidelines................................................... 30
10.2 Layout Example...................................................... 31
11 Device and Documentation Support..........................32
11.1 Device Support........................................................32
11.2 Documentation Support.......................................... 32
11.3 Receiving Notification of Documentation Updates.. 32
11.4 Support Resources................................................. 32
11.6 Electrostatic Discharge Caution.............................. 33
11.7 Glossary.................................................................. 33
12 Mechanical, Packaging, and Orderable
Information.................................................................... 34
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision A (December 2020) to Revision B (March 2021)
Page
• Changed data sheet status from "Advance Information" to "Production Data"...................................................1
• Deleted preview note from VSSOP (8) package in Device Information table.....................................................1
Changes from Revision * (March 2020) to Revision A (December 2020)
Page
• Updated the numbering format for tables, figures, and cross-references throughout the document..................1
• Added link to all applications in Applications section..........................................................................................1
• Deleted SOT-23(8) package from Device Information in the Description section...............................................1
• Added SOT-23(14) package to Device Information in the Description section...................................................1
• Deleted Table of Graphs from the Specifications section................................................................................. 10
2
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Product Folder Links: OPA2991-Q1 OPA4991-Q1
Copyright © 2021 Texas Instruments Incorporated


Part Number OPA4991-Q1
Description Low Noise Op Amp
Maker etcTI
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