SBOS982G June   2020  – July 2022 OPA2863 , OPA4863 , OPA863

PRODMIX  

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Device Comparison Table
  6. Pin Configuration and Functions
  7. Specifications
    1. 7.1  Absolute Maximum Ratings
    2. 7.2  ESD Ratings
    3. 7.3  Recommended Operating Conditions
    4. 7.4  Thermal Information: OPA863
    5. 7.5  Thermal Information: OPA2863
    6. 7.6  Thermal Information: OPA4863
    7. 7.7  Electrical Characteristics: VS = 10 V
    8. 7.8  Electrical Characteristics: VS = 3 V
    9. 7.9  Typical Characteristics: VS = 10 V
    10. 7.10 Typical Characteristics: VS = 3 V
    11. 7.11 Typical Characteristics: VS = 3 V to 10 V
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Input Stage
      2. 8.3.2 Output Stage
        1. 8.3.2.1 Overload Power Limit
      3. 8.3.3 ESD Protection
    4. 8.4 Device Functional Modes
      1. 8.4.1 Power-Down Mode
  9. Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Low-Side Current Sensing
      1. 9.2.1 Design Requirements
    3. 9.3 Front-End Gain and Filtering
    4. 9.4 Low-Power SAR ADC Driver and Reference Buffer
    5. 9.5 Variable Reference Generator Using MDAC
    6. 9.6 Clamp-On Ultrasonic Flow Meter
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 Thermal Considerations
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Support Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

Electrical Characteristics: VS = 3 V

at VS+ = 3 V, VS– = 0 V, G = 1, RF = 0 Ω for G =1 V/V, otherwise RF = 1 kΩ for other gains, CL = 1 pF, RL = 2 kΩ connected to 1 V, input and output VCM = 1 V, and TA ≅ 25°C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
AC PERFORMANCE
SSBW Small-signal bandwidth VOUT = 20 mVPP, G = 1 97 MHz
GBWP Gain-bandwidth product 50 MHz
LSBW Large-signal bandwidth VOUT = 1 VPP 26 MHz
Bandwidth for 0.1-dB flatness VOUT = 20 mVPP 10 MHz
SR Slew rate VOUT = 1–V step, Gain = –1 105 V/µs
Rise, fall time VOUT = 200–mV step 10 ns
Settling time to 0.1% VOUT = 1–V step 58 ns
Settling time to 0.01% 90
Overshoot VOUT = 1–V step 2 %
Undershoot 16
Overdrive recovery time G = –1, 0.5V overdrive beyond supplies 95 ns
G = 1, 0.5V overdrive beyond supplies 100
HD2 Second-order harmonic distortion f = 20 kHz, VOUT = 1 VPP –123 dBc
HD3 Third-order harmonic distortion –132
HD2 Second-order harmonic distortion f = 100 kHz, VOUT = 1 VPP –109 dBc
HD3 Third-order harmonic distortion –129
eN Input voltage noise Flatband, 1/f corner at 25 Hz 6 nV/√Hz
iN Input current noise Flatband, 1/f corner at 2 kHz 0.4 pA/√Hz
Closed-loop output impedance f = 1 MHz 0.2 Ω
Channel-to-channel crosstalk f = 1 MHz, VOUT = 1 VPP –127 dBc
DC PERFORMANCE
AOL Open-loop voltage gain VOUT = 1 V to 2 V 104 123 dB
VOS Input-referred offset voltage –1.3 ±0.4 1.3 mV
Input offset voltage drift TA = –40°C to +125°C, D and DGK packages  –3.5 ±1 3.5 uV/°C
TA = 0°C to +85°C, DBV package  –4.4 ±1 4.4
TA = –40°C to +125°C, DBV package  –5 ±1 5
Input bias current TA ≅ 25°C 0.3 0.73 µA
TA = –40°C to +85°C 1.2
TA = –40°C to +125°C 1.56
Input bias current drift TA = –40°C to +125°C ±3 7.4 nA/°C
Input offset current -30 ±10 30 nA
INPUT
Input common-mode voltage range VS––0.2 VS++0.2 V
CMRR Common-mode rejection ratio VCM = VS– – 0.2 V to VS+ – 1.6 V 94 115 dB
Input impedance common-mode 360 || 0.9 MΩ || pF
Input impedance differential mode 200 || 0.5 kΩ || pF
OUTPUT
VOL Output voltage, low TA ≅ 25°C VS–+ 0.13 VS–+ 0.15 V
TA = –40°C to +125°C VS–+ 0.13 VS–+ 0.16
VOH Output voltage, high TA ≅ 25°C VS+–0.15 VS+–0.13 V
TA = –40°C to +125°C VS+–0.15 VS+–0.13
Linear output drive (sourcing/sinking) VOUT = ±0.7 V, ΔVOS < 1 mV(4) 23 33 mA
Short-circuit current 45 mA
POWER SUPPLY
IQ Quiescent current per amplifier TA ≅ 25°C 690 910 µA
TA = –40°C to +125°C 1180
PSRR Power-supply rejection ratio ΔVS = ±1 V(1) 100 120 dB
POWER DOWN (Pin Must be Driven)
Enable voltage threshold Specified on above VS+ – 0.5 V 2.5 V
Disable voltage threshold Specified off below VS+ – 1.5 V 1.5 V
Power-down quiescent current per channel PD ≤ VS+ – 1.5 V 0.8 1.5 µA
Power-down pin bias current 1 50 nA
Turn-on time delay 6.5 µs
Turn-off time delay 5 µs
AUXILIARY INPUT STAGE
Gain-bandwidth product 50 MHz
Input voltage noise Flatband, 1/f corner at 25 Hz 6 nV/√Hz
Input current noise Flatband, 1/f corner at 100 Hz 0.4 pA/√Hz
Input-referred offset voltage –1.3 ±0.15 1.3 mV
Input bias current TA ≅ 25°C 0.2 0.6 µA
TA = –40°C to +125°C 0.4 1.2
Common-mode rejection ratio VCM = 2.1 V to 3.2 V 100 120 dB
Power supply rejection ratio ΔVS = ±0.6 V 100 115 dB

Change in supply voltage from the default test condition with only one of the positive or negative supplies changing corresponding to
+PSRR and –PSRR.

Change in input offset voltage from no-load condition.