SBOS566C June   2017  – October 2018 OPA1692

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Preamplifier for 3-Wire Electret Microphones
      2.      THD + N vs Frequency (3 VRMS, 2-kΩ Load)
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin Functions: OPA1692
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information: OPA1692
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Distortion Reduction
      2. 7.3.2 Phase Reversal Protection
      3. 7.3.3 Electrical Overstress
    4. 7.4 Device Functional Modes
      1. 7.4.1 Operating Voltage
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Capacitive Loads
      2. 8.1.2 Noise Performance
      3. 8.1.3 Basic Noise Calculations
      4. 8.1.4 EMI Rejection
      5. 8.1.5 EMIRR +IN Test Configuration
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
    3. 8.3 Other Application Examples
      1. 8.3.1 Two-Wire Electret Microphone Preamplifier
      2. 8.3.2 Battery-Powered Preamplifier for Professional Microphones
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
    3. 10.3 Power Dissipation
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Development Support
        1. 11.1.1.1 TINA-TI™ (Free Software Download)
        2. 11.1.1.2 DIP Adapter EVM
        3. 11.1.1.3 Universal Operational Amplifier EVM
        4. 11.1.1.4 Smart Amplifier Speaker Characterization Board Evaluation Module
        5. 11.1.1.5 TI Precision Designs
        6. 11.1.1.6 WEBENCH Filter Designer
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Related Links
    4. 11.4 Receiving Notification of Documentation Updates
    5. 11.5 Community Resource
    6. 11.6 Trademarks
    7. 11.7 Electrostatic Discharge Caution
    8. 11.8 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6.5 Electrical Characteristics

at TA = 25°C, VS = ±18 V, RL = 2 kΩ, and VCM = VOUT = midsupply (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
AUDIO PERFORMANCE
THD+N Total harmonic distortion + noise G = 1, f = 20 kHz, RL = 2kΩ, VO = 3 VRMS -118 dB
G = 1, f = 1 kHz, RL = 2kΩ, VO = 3 VRMS –127 dB
IMD Intermodulation distortion G = 1,
VO = 3 VRMS 		SMPTE/DIN two-tone, 4:1
(60 Hz and 7 kHz)		 0.00005%
Intermodulation distortion G = 1,
VO = 3 VRMS 		-126 dB
Intermodulation distortion G = 1,
VO = 3 VRMS 		CCIF twin-tone
(19 kHz and 20 kHz)		 0.0002
Intermodulation distortion G = 1,
VO = 3 VRMS 		CCIF twin-tone
(19 kHz and 20 kHz)		 -114 dB
FREQUENCY RESPONSE
GBW Gain-bandwidth product G = 100 5.1 MHz
SR Slew rate G = –1 23 V/µs
Full power bandwidth(1) VO = 1 VP 3.66 MHz
Overload recovery time G = –10 250 ns
Channel separation (dual and quad) f = 1 kHz –145 dB
NOISE
en Input voltage noise f = 0.1 to 10 Hz 130 nVPP
en Input voltage noise f = 20 Hz to 20 kHz 3.9 µVPP
Input voltage noise density f = 1 kHz 4.2 nV/rtHz
f = 100 Hz 4.5
In Input current noise density f = 1 kHz 0.37 pA/rtHz
f = 100 Hz 0.4
OFFSET VOLTAGE
VOS Input offset voltage VS = ±1.75 V to ±18 V ±0.25 ±0.8 mV
VOS Input offset voltage VS = ±1.75 V to ±18 V ±1.0 mV
VS = ±1.75 V to ±18 V, TA = –40°C to +125°C(2) 0.5 5 µV/°C
PSRR Power-supply rejection ratio VS = ±1.75 V to ±18 V 0.1 1.5 µV/V
PSRR Power-supply rejection ratio TA = –40°C to +125°C(2) 2.25 µV/V
INPUT BIAS CURRENT
IB Input bias current VCM = 0 V 300 550 nA
TA = –40°C to +125°C 600 nA
IOS Input offset current VCM = 0 V ±2 ±15 nA
TA = –40°C to +125°C ±20 nA
INPUT VOLTAGE RANGE
VCM Common-mode voltage range (V–) + 1.5 (V+) – 0.5 V
CMRR Common-mode rejection ratio (V–) + 1.5 V ≤ VCM ≤ (V+) – 0.5 V 0.1 1 uV/V
CMRR Common-mode rejection ratio TA = –40°C to +125°C 4 uV/V
INPUT IMPEDANCE
Differential Resistance 350 kΩ
Differential Capacitance 1.5 pF
Common-Mode Resistance 350 MΩ
Common-Mode Capacitance 1.6 pF
OPEN-LOOP GAIN
AOL Open-loop voltage gain TA = –40°C to +125°C 110 140 dB
AOL Open-loop voltage gain (V–) + 0.2 V ≤ VO ≤ (V+) – 0.2 V, RL = 2 kΩ 120 140 dB
OUTPUT
VOUT Voltage output RL = 2 kΩ -17.8 17.8 V
IOUT Output current See Figure 46, Figure 47 mA
ZO Open-loop output impedance See Figure 14 Ω
ISC Short-circuit current(3) ±50 mA
CLOAD Capacitive load drive 200 pF
POWER SUPPLY
IQ Quiescent current
(per channel)		 IOUT = 0 A 650 750 µA
IOUT = 0 A, TA = –40°C to +125°C(2) 650 975 µA
(1) Full-power bandwidth = SR / (2π × VP), where SR = slew rate.
(2) Specified by design and characterization.
(3) One channel at a time.