SBOS637D October   2016  – June 2019 OPA2325 , OPA325 , OPA4325

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
    1.     Offset Voltage vs Input Common-Mode Voltage
  3. 3 Description
    1.     The OPAx325 as an ADC Driver Amplifier
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin Functions: OPA325
    2.     Pin Functions: OPA2325
    3.     Pin Functions: OPA4325
  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: OPA325
    5. 6.5 Thermal Information: OPA2325
    6. 6.6 Thermal Information: OPA4325
    7. 6.7 Electrical Characteristics: VS = 2.2 V to 5.5 V or ±1.1 V to ±2.75 V
    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 Zero-Crossover Input Stage
      2. 7.3.2 Low Input Offset Voltage
      3. 7.3.3 Input and ESD Protection
    4. 7.4 Device Functional Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Operating Characteristics
      2. 8.1.2 Basic Amplifier Configurations
      3. 8.1.3 Driving an Analog-to-Digital Converter
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Related Links
    3. 11.3 Receiving Notification of Documentation Updates
    4. 11.4 Community Resources
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

6.7 Electrical Characteristics: VS = 2.2 V to 5.5 V or ±1.1 V to ±2.75 V

at TA = 25°C, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and VOUT = VS / 2 (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
OFFSET VOLTAGE
VOS Input offset voltage 40 150 µV
dVOS/dT Input offset voltage drift VS = 5.5 V, TA = –40°C to +125°C 2 7.5 µV/°C
PSRR Power-supply rejection ratio VS = 2.2 V to +5.5 V 6 20 µV/V
VS = 2.2 V to 5.5 V, TA = –40°C to +125°C 15
Channel separation At 1 kHz 130 dB
INPUT VOLTAGE
VCM Common-mode voltage range (V–) – 0.1 (V+) + 0.1 V
CMRR Common-mode rejection ratio VS = 5.5 V, (V–) – 0.1 V < VCM < (V+) + 0.1 V 100 114 dB
TA = –40°C to +125°C 95
INPUT BIAS CURRENT
IB Input bias current ±0.2 ±10 pA
TA = –40°C to +85°C ±500
TA = –40°C to +125°C ±10 nA
IOS Input offset current ±0.2 ±10 pA
TA = –40°C to +85°C ±500
TA = –40°C to +125°C ±10 nA
NOISE
Input voltage noise f = 0.1 Hz to 10 Hz 2.8 µVPP
en Input voltage noise density f = 1 kHz 10 nV/√Hz
f = 10 kHz 9
in Input current noise density f = 1 kHz 1.3 fA/√Hz
INPUT CAPACITANCE
Differential 5 pF
Common-mode 4 pF
OPEN-LOOP GAIN
AOL Open-loop voltage gain 0.1 V < VO < (V+) – 0.1 V, RL = 10 kΩ 105 130 dB
0.1 V < VO < (V+) – 0.1 V, RL = 10 kΩ,
TA = –40°C to +125°C		 95 128
0.2 V < VO < (V+) – 0.2 V, RL = 2 kΩ 100 110
PM Phase margin G = 1 V/V, VS = 5 V, CL = 15 pF 67 Degrees
FREQUENCY RESPONSE (VS = 5.0 V, CL = 50 pF)
GBP Gain bandwidth product Unity gain 10 MHz
SR Slew rate G = +1 5 V/μs
tS Settling time To 0.1%, 2-V step, G = +1 0.6 µs
To 0.01%, 2-V step, G = +1 1
Overload recovery time VIN × G > VS 200 ns
THD+N Total harmonic distortion + noise(1) VO = 4 VPP, G = +1, f = 10 kHz, RL = 10 kΩ 0.0005%
VO = 2 VPP, G = +1, f = 10 kHz, RL = 600 Ω 0.005%
OUTPUT
VO Voltage output swing from both rails RL = 10 kΩ 10 20 mV
RL = 10 kΩ, TA = –40°C to +125°C 30
RL = 2 kΩ 25 45
RL = 2 kΩ, TA = –40°C to +125°C 55
ISC Short-circuit current VS = 5.5 V See the Typical Characteristics mA
CL Capacitive load drive See the Typical Characteristics
RO Open-loop output resistance IO = 0 mA, f = 1 MHz 180 Ω
POWER SUPPLY
IQ Quiescent current per amplifier IO = 0 mA, VS = 5.5 V 0.65 0.75 mA
IO = 0 mA, VS = 5.5 V, TA = –40°C to +125°C 0.8
Power-on time V+ = 0 V to 5 V, to 90% IQ level 28 µs
(1) Third-order filter; bandwidth = 80 kHz at –3 dB.