SBOSAI7B November   2023  – July 2024 OPA2891 , OPA891

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information - OPA891
    5. 5.5 Thermal Information - OPA2891
    6. 5.6 Electrical Characteristics - RL = 150Ω
    7. 5.7 Electrical Characteristics - RL = 1kΩ
    8. 5.8 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagrams
    3. 6.3 Feature Description
      1. 6.3.1 Offset Nulling
    4. 6.4 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 Driving a Capacitive Load
      2. 7.1.2 Low-Pass Filter Configurations
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Selection of Multiplexer
        2. 7.2.2.2 Signal Source
        3. 7.2.2.3 Driving Amplifier
        4. 7.2.2.4 Driving Amplifier Bandwidth Restriction
      3. 7.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
        1. 7.4.1.1 General PowerPAD™ Integrated Circuit Package Design Considerations
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Documentation Support
      1. 8.1.1 Related Documentation
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

5.6 Electrical Characteristics - RL = 150Ω

at TA = 25°C, VCC = ±15V, and RL = 150Ω (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
DYNAMIC PERFORMANCE
BW Small-signal bandwidth (–3dB)
Gain = –1V/V or 2V/V
 
VCC = ±15V
 		 140 MHz
VCC = ±5V 135
Bandwidth for 0.1dB flatness
Gain = –1V/V or 2V/V		 VCC = ±15V 9 MHz
VCC = ±5V 9
SR Slew rate(1) Gain = –1V/V VCC = ±15V, 20V step 105 V/μs
VCC = ±5V, 5V step 90
tS Settling time To 0.1%, gain = –1V/V VCC = ±15V, 5V step 70 ns
VCC = ±5V, 2.5V step 55
To 0.01%, gain = –1V/V VCC = ±15V, 5V step 90
VCC = ±5V, 2.5V step 80
AUDIO PERFORMANCE
THD+N Total harmonic distortion + noise Gain = 1V/V, RL = 600Ω, f = 1kHz,
BW = 80kHz		 VCC = ±15V, VO = 3VRMS –137 dB
0.000014 %
VCC = ±5V, VO = 1VRMS –130 dB
0.00003 %
Gain = 2V/V, RL = 600Ω, f = 1kHz,
BW = 80kHz		 VCC = ±15V, VO = 3VRMS –133 dB
0.000022 %
VCC = ±5V, VO = 1VRMS –124 dB
0.00006 %
IMD Intermodulation distortion Gain = 1V/V, RL = 600Ω, SMPTE/DIN two-tone, 4:1 (60Hz and 7kHz) VCC = ±15V, VO = 3VRMS –130 dB
0.000032 %
VCC = ±5V, VO = 1VRMS –126 dB
0.00005 %
Gain = 2V/V, RL = 600Ω, SMPTE/DIN two-tone, 4:1 (60Hz and 7kHz) VCC = ±15V, VO = 3VRMS –126 dB
0.00005 %
VCC = ±5V, VO = 1VRMS –120 dB
0.0001 %
NOISE AND DISTORTION PERFORMANCE
THD Total harmonic distortion Gain = 2V/V, VCC = ±5V or ±15V, f = 1MHz VO(pp) = 2V –91 dBc
Vn Input voltage noise VCC = ±5V or ±15V, f > 10kHz 0.95 nV/√Hz
In Input current noise VCC = ±5V or ±15V, f > 10kHz 2.3 pA/√Hz
Channel-to-channel crosstalk
(OPA2891 only)		 VCC = ±5V or ±15V, f = 1MHz –80 dBc
DC PERFORMANCE
VOS Input offset voltage VCC = ±5V or ±15V, TA = 25°C 0.2 1 mV
Offset voltage drift VCC = ±5V or ±15V, TA = full range 1 μV/°C
IIB Input bias current VCC = ±5V or ±15V TA = 25°C 9 20 μA
TA = full range 33
IOS Input offset current VCC = ±5V or ±15V TA = 25°C 30 250 nA
TA = full range 400
INPUT CHARACTERISTICS
VICR Common-mode input voltage range VCC = ±15V ±13.8 ±14.3 V
VCC = ±5V ±3.8 ±4.3
CMRR Common-mode rejection ratio VCC = ±15V, VICR = ±12V TA = 25°C 85 104 dB
TA = full range 80
VCC = ±5V, VICR = ±2.5V TA = 25°C 90 106
TA = full range 85
Input impedance Common-mode 10 || 1.2 MΩ || pF
Differential-mode 6 || 1.8 kΩ || pF
OUTPUT CHARACTERISTICS
VO Output voltage swing VCC = ±15V, RL = 250Ω ±12 ±12.9 V
VCC = ±5V ±3 ±3.5
IO Output current(2) RL = 10Ω VCC = ±15V 60 200 mA
VCC = ±5V 50 160
RO Output resistance Open loop 5 Ω
POWER SUPPLY
ICC Supply current (each amplifier) VCC = ±15V TA = 25°C 7.5 10 mA
TA = full range 11
VCC = ±5V TA = 25°C 6.5 9
TA = full range 10
PSRR Power-supply rejection ratio VCC = ±5V or ±15V, TA = 25°C 90 105 dB
VCC = ±5V or ±15V, TA = full range 85
(1) Slew rate is measured from an output level range of 25% to 75%.
(2) Keep junction temperature less than the absolute maximum rating when the output is heavily loaded or shorted; see also Section 5.1.