OPA211 Amplifier Datasheet

OPA211 Datasheet PDF, Equivalent


Part Number

OPA211

Description

Precision Operational Amplifier

Manufacture

etcTI

Total Page 30 Pages
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OPA211
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OPA211, OPA2211
SBOS377K – OCTOBER 2006 – REVISED SEPTEMBER 2018
OPAx211 1.1-nv/Hz Noise, Low Power, Precision Operational Amplifier
1 Features
1 Low Voltage Noise: 1.1 nV/Hz at 1 kHz
• Input Voltage Noise: 80 nVPP (0.1 to 10 Hz)
• THD + N: –136 dB (G = 1, ƒ = 1 kHz)
• Offset Voltage: 125 μV (Maximum)
• Offset Voltage Drift: 0.35 μV/°C (Typical)
• Low Supply Current: 3.6 mA/Ch (Typical)
• Unity-Gain Stable
• Gain Bandwidth Product:
– 80 MHz (G = 100)
– 45 MHz (G = 1)
• Slew Rate: 27 V/μs
• 16-Bit Settling: 700 ns
• Wide Supply Range:
– ±2.25 to ±18 V, 4.5 V to 36 V
• Rail-to-Rail Output
• Output Current: 30 mA
• SON-8 (3 mm × 3 mm), VSSOP-8, and SOIC-8
2 Applications
• PLL Loop Filters
• Low-Noise, Low-Power Signal Processing
• 16-Bit ADC Drivers
• DAC Output Amplifiers
• Active Filters
• Low-Noise Instrumentation Amps
• Ultrasound Amplifiers
• Professional Audio Preamplifiers
• Low-Noise Frequency Synthesizers
• Infrared Detector Amplifiers
• Hydrophone Amplifiers
• Geophone Amplifiers
• Medical Instrumentation
3 Description
The OPAx211 series of precision operational
amplifiers achieves very low 1.1-nV/Hz noise density
with a supply current of only 3.6 mA. This series also
offers rail-to-rail output swing, which maximizes
dynamic range.
The extremely low voltage and low current noise,
high-speed, and wide output swing of the OPAx211
series make these devices an excellent choice as a
loop filter amplifier in PLL applications.
In precision data acquisition applications, the
OPAx211 series of operational amplifiers provides
700-ns settling time to 16-bit accuracy throughout 10-
V output swings. This ac performance, combined with
only 125 μV of offset and 0.35 μV/°C of drift over
temperature, makes the OPAx211 series suitable for
driving high-precision 16-bit analog-to-digital
converters (ADCs) or buffering the output of high-
resolution digital-to-analog converters (DACs).
The OPAx211 series is specified over a wide dual-
power supply range of ±2.25 to ±18 V, or for single-
supply operation from 4.5 to 36 V.
The OPA211 is available in the small SON-8 (3 mm ×
3 mm), VSSOP-8, and SOIC-8 packages. A dual
version (OPA2211) is available in a SON-8 (3 mm × 3
mm) or an SO-8 PowerPAD™ package. This series
of operational amplifiers is specified from TA = –40°C
to +125°C.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
SOIC (8)
4.90 mm × 3.90 mm
OPA211
SON (8)
3.00 mm × 3.00 mm
VSSOP (8)
3.00 mm × 3.00 mm
OPA2211
SON (8)
3.00 mm × 3.00 mm
SO PowerPAD (8) 4.90 mm × 3.90 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Input Voltage Noise Density vs Frequency
100
10
1
0.1 1 10 100 1k 10k 100k
Frequency (Hz)
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.

OPA211
OPA211, OPA2211
SBOS377K – OCTOBER 2006 – REVISED SEPTEMBER 2018
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 4
6 Specifications......................................................... 6
6.1 Absolute Maximum Ratings ...................................... 6
6.2 ESD Ratings.............................................................. 6
6.3 Recommended Operating Conditions....................... 6
6.4 Thermal Information: OPA211 .................................. 7
6.5 Thermal Information: OPA2211 ................................ 7
6.6 Electrical Characteristics: VS = ±2.25 to ±18 V
(OPAx211) ................................................................. 8
6.7 Electrical Characteristics: VS = ±2.25 to ±18 V for
High-Grade OPAx211 .............................................. 11
6.8 Typical Characteristics ............................................ 14
7 Detailed Description ............................................ 21
7.1 Overview ................................................................. 21
7.2 Functional Block Diagram ....................................... 21
7.3 Feature Description................................................. 21
7.4 Device Functional Modes........................................ 23
8 Application and Implementation ........................ 24
8.1 Application Information............................................ 24
8.2 Typical Application ................................................. 29
9 Power Supply Recommendations...................... 30
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 Related Links ........................................................ 33
11.4 Receiving Notification of Documentation Updates 33
11.5 Community Resources.......................................... 33
11.6 Trademarks ........................................................... 33
11.7 Electrostatic Discharge Caution ............................ 33
11.8 Glossary ................................................................ 33
12 Mechanical, Packaging, and Orderable
Information ........................................................... 33
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision J (February 2018) to Revision K
Page
• Changed format of GPN from "OPA2x11" to "OPAx211" ...................................................................................................... 1
• Corrected system-generated errors: "Time" units from "ms/div" back to "µs/div" and unit for resistors from "W" back
to "Ω" in Typical Characteristics .......................................................................................................................................... 14
• Corrected system-generated error in unit for resistors from "W" back to "Ω" in Figure 43 ................................................. 23
• Reverted Figure 51 back to that of rev. I ............................................................................................................................. 31
Changes from Revision I (June 2016) to Revision J
Page
• Added "Medical Instrumentation" to Applications section....................................................................................................... 1
• Changed product status from mixed product status to production data ................................................................................ 1
• Deleted Device Comparison table ......................................................................................................................................... 4
• Added NC pin table notes to pin diagrams in the Pin Configurations and Functions section ............................................... 4
• Changed formatting of document reference in EMI Rejection section ................................................................................. 26
• Changed formatting of document references in SON Layout Guidelines section ................................................................ 31
• Changed formatting of document references in Related Documentation section ................................................................ 32
Changes from Revision H (November 2015) to Revision I
Page
• Changed the SON pin number for V+ from 4 to 7 in the Pin Functions: OPA211 table ....................................................... 4
• Changed the SON pin number for V- From: 7 To: 4 in the Pin Functions: OPA211 table .................................................... 4
2 Submit Documentation Feedback
Copyright © 2006–2018, Texas Instruments Incorporated
Product Folder Links: OPA211 OPA2211


Features Product Folder Order Now Technical Doc uments Tools & Software Support & Com munity OPA211, OPA2211 SBOS377K – OC TOBER 2006 – REVISED SEPTEMBER 2018 O PAx211 1.1-nv/√Hz Noise, Low Power, P recision Operational Amplifier 1 Featu res •1 Low Voltage Noise: 1.1 nV/√H z at 1 kHz • Input Voltage Noise: 80 nVPP (0.1 to 10 Hz) • THD + N: –136 dB (G = 1, ƒ = 1 kHz) • Offset Volt age: 125 μV (Maximum) • Offset Volta ge Drift: 0.35 μV/°C (Typical) • Lo w Supply Current: 3.6 mA/Ch (Typical) Unity-Gain Stable • Gain Bandwidth Product: – 80 MHz (G = 100) – 45 M Hz (G = 1) • Slew Rate: 27 V/μs • 16-Bit Settling: 700 ns • Wide Supply Range: – ±2.25 to ±18 V, 4.5 V to 36 V • Rail-to-Rail Output • Output Current: 30 mA • SON-8 (3 mm × 3 mm ), VSSOP-8, and SOIC-8 2 Applications PLL Loop Filters • Low-Noise, Low- Power Signal Processing • 16-Bit ADC Drivers • DAC Output Amplifiers • A ctive Filters • Low-Noise Instrumentation Amps • Ultrasound Amplifiers • Professional Audio Preamplifiers • Low-Noise Frequen.
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