SBOS855E January   2017  – December 2022 OPA1677 , OPA1678 , OPA1679

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  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: OPA1677
    5. 6.5 Thermal Information: OPA1678
    6. 6.6 Thermal Information: OPA1679
    7. 6.7 Electrical Characteristics
    8. 6.8 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 Phase Reversal Protection
      2. 7.3.2 Electrical Overstress
      3. 7.3.3 EMI Rejection Ratio (EMIRR)
        1. 7.3.3.1 EMIRR IN+ Test Configuration
    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. 8.2 Typical Applications
      1. 8.2.1 Phantom-Powered Preamplifier for Piezo Contact Microphones
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Power Supply
          2. 8.2.1.2.2 Input Network
          3. 8.2.1.2.3 Gain
          4. 8.2.1.2.4 Output Network
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Phono Preamplifier for Moving Magnet Cartridges
      3. 8.2.3 Single-Supply Electret Microphone Preamplifier
      4. 8.2.4 Composite Headphone Amplifier
      5. 8.2.5 Differential Line Receiver With AC-Coupled Outputs
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
        1. 8.4.1.1 Power Dissipation
      2. 8.4.2 Layout Example
  9. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Development Support
        1. 9.1.1.1 PSpice® for TI
        2. 9.1.1.2 TINA-TI™ Simulation Software (Free Download)
        3. 9.1.1.3 DIP-Adapter-EVM
        4. 9.1.1.4 DIYAMP-EVM
        5. 9.1.1.5 TI Reference Designs
        6. 9.1.1.6 Filter Design Tool
    2. 9.2 Documentation Support
      1. 9.2.1 Related Documentation
    3. 9.3 Receiving Notification of Documentation Updates
    4. 9.4 Support Resources
    5. 9.5 Trademarks
    6. 9.6 Electrostatic Discharge Caution
    7. 9.7 Glossary
  10. 10Mechanical, Packaging, and Orderable Information

Package Options

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

6.7 Electrical Characteristics

at VS = ±15 V, TA = 25°C, 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, RL = 600 Ω, f = 1 kHz, VO = 3 VRMS 0.0001%
–120 dB
IMD Intermodulation distortion G = 1
VO = 3 VRMS		 SMPTE/DIN two-tone, 4:1
(60 Hz and 7 kHz)		 0.0001%
–120 dB
DIM 30
(3-kHz square wave and
15-kHz sine wave)		 0.0001%
–120 dB
CCIF twin-tone
(19 kHz and 20 kHz)		 0.0001%
–120 dB
FREQUENCY RESPONSE
GBW Gain-bandwidth product G = 1 16 MHz
SR Slew rate G = –1 9 V/µs
Full power bandwidth(1) VO = 1 VP 1.4 MHz
Overload recovery time G = –10 1 µs
Channel separation (dual and quad) f = 1 kHz –130 dB
NOISE
en Input voltage noise f = 20 Hz to 20 kHz 5.4 µVPP
f = 0.1 Hz to 10 Hz 1.74
Input voltage noise density f = 1 kHz 4.5 nV/√Hz
in Input current noise density f = 1 kHz 3 fA/√Hz
OFFSET VOLTAGE
VOS Input offset voltage VS = ±2.25 V to ±18 V ±0.5 ±2 mV
VS = ±2.25 V to ±18 V, TA = –40°C to 125°C(2) 2 µV/°C
PSRR Power-supply rejection ratio VS = ±2.25 V to ±18 V 3 8 µV/V
INPUT BIAS CURRENT
IB Input bias current VCM = 0 V ±10 pA
IOS Input offset current VCM = 0 V ±10 pA
INPUT VOLTAGE RANGE
VCM Common-mode voltage range (V–)+0.5 (V+) – 2 V
CMRR Common-mode rejection ratio 100 110 dB
INPUT IMPEDANCE
Differential 100 || 6 MΩ || pF
Common-mode 6000 || 2 GΩ || pF
OPEN-LOOP GAIN
AOL Open-loop voltage gain (V–) + 0.8 V ≤ VO ≤ (V+) – 0.8 V 106 114 dB
OUTPUT
VO Output voltage (V–) + 0.8 (V+) – 0.8 V
IOUT Output Current See Section 6.8 mA
ZO Open-loop output impedance f = 1 MHz See Section 6.8 Ω
ISC Short-circuit current(3) ±50 mA
CL Capacitive load drive 100 pF
POWER SUPPLY
IQ Quiescent current (per channel) IO = 0 A 2 2.5 mA
IO = 0 A, TA = –40°C to 125°C(2) 2.8
(1) Full-power bandwidth = SR / (2π ×VP), where SR = slew rate.
(2) Specified by design and characterization.
(3) One channel at a time.