SBOS962F April   2020  – March 2023 OPA205 , OPA2205 , OPA4205

PRODMIX  

  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: OPA205
    5. 6.5 Thermal Information: OPA2205
    6. 6.6 Thermal Information: OPA4205
    7. 6.7 Electrical Characteristics: VS = ±5 V
    8. 6.8 Electrical Characteristics: VS = ±15 V
    9. 6.9 Typical Characteristics
  7. 7 Parameter Measurement Information
    1. 7.1 Typical Specifications and Distributions
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Input Offset Trimming
      2. 8.3.2 Lower Input Bias With Super-Beta Inputs
      3. 8.3.3 Overload Power Limiter
      4. 8.3.4 EMI Rejection
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 High-Precision Signal-Chain Input Buffer
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curves
      2. 9.2.2 Discrete, Two-Op-Amp Instrumentation Amplifier
      3. 9.2.3 Second-Order Low-Pass Filter
    3. 9.3 Power Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  10. 10Device and Documentation Support
    1. 10.1 Device Support
      1. 10.1.1 Development Support
        1. 10.1.1.1 PSpice® for TI
    2. 10.2 Documentation Support
      1. 10.2.1 Related Documentation
    3. 10.3 Receiving Notification of Documentation Updates
    4. 10.4 Support Resources
    5. 10.5 Trademarks
    6. 10.6 Electrostatic Discharge Caution
    7. 10.7 Glossary
  11. 11Mechanical, Packaging, and Orderable Information

Package Options

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

6.8 Electrical Characteristics: VS = ±15 V

at TA = 25°C, VCM = VOUT = midsupply, and RL = 10 kΩ connected to VS / 2 (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
OFFSET VOLTAGE
VOS Input offset voltage OPA2205 ±2 ±15 μV
TA = –40°C to +125°C ±25
OPAx205A     ±4 ±25
TA = –40°C to +125°C ±55
dVOS/dT Input offset voltage drift OPA2205 TA = –40°C to +125°C ±0.04 ±0.2 μV/°C
OPAx205A TA = –40°C to +125°C ±0.08 ±0.5
PSRR Power supply rejection ratio OPA2205,
VS = ±2.25 V to ±18 V		 ±0.05 ±0.25 μV/V
TA = –40°C to +125°C ±0.5
OPAx205A,
VS = ±2.25 V to ±18 V		 ±0.05 ±0.5
TA = –40°C to +125°C ±1
Channel separation, (dual, quad) f = dc 130 dB
f = 100 kHz 110
INPUT BIAS CURRENT
IB Input bias current OPA2205 ±0.1 ±0.4 nA
TA = 0°C to 85°C ±0.6
TA = –40°C to +125°C ±0.9
OPAx205A ±0.1 ±0.5
TA = 0°C to 85°C ±1
TA = –40°C to +125°C ±1.2
IOS Input offset current ±0.1 ±0.4 nA
TA = 0°C to 85°C ±0.8
TA = –40°C to +125°C ±0.9
NOISE
Input voltage noise f = 0.1 Hz to 10 Hz   0.2 μVPP
en Input voltage noise density f = 10 Hz   7.4   nV/√Hz
f = 100 Hz   7.2  
f = 1 kHz   7.2  
in Input current noise density f = 1 kHz   110   fA/√Hz
INPUT VOLTAGE
VCM Common-mode voltage (V–) + 1 (V+) – 1.4 V
CMRR Common-mode rejection ratio OPA2205,
(V–) + 1 V < VCM < (V+) – 1.4 V		 126 140 dB
TA = –40°C to +125°C 124 140
OPAx205A,
(V–) + 1 V < VCM < (V+) – 1.4 V		 126 140
TA = –40°C to +125°C 124 140
INPUT IMPEDANCE
ZID Differential 9 || 4.4 MΩ || pF
ZICM Common-mode 300 || 4.3 GΩ || pF
OPEN-LOOP GAIN
AOL Open-loop voltage gain OPA2205,
TA = –40°C to +125°C		 RL = 10 kΩ,
(V–) + 200 mV < VO < (V+) – 200 mV		 132 135 dB
RL = 2 kΩ,
(V–) + 350 mV < VO < (V+) – 350 mV		 132 135
OPAx205A,
TA = –40°C to +125°C		 RL = 10 kΩ,
(V–) + 200 mV < VO < (V+) – 200 mV		 126 132
RL = 2 kΩ,
(V–) + 350 mV < VO < (V+) – 350 mV		 126 130
FREQUENCY RESPONSE
GBW Gain-bandwidth product CL = 30 pF 3.6 MHz
SR Slew rate 10-V step, gain = –1 4 V/μs
Phase margin RL = 10 kΩ, CL = 25 pF 58 degrees
tS Settling time To 0.024% (12-bit),
10-V step, gain = 1,
CL = 30 pF		 Falling 2.8 μs
Rising 4.5
Overload recovery time Gain = –10 0.2 μs
THD+N Total harmonic distortion + noise VO = 5 VPP, gain = +1, f = 1 kHz, RL = 2 kΩ 0.0004 %
OUTPUT
Voltage output swing from rail AOL > 126 dB RL = 10 kΩ (V–) + 0.2 (V+) – 0.2 V
RL = 2 kΩ (V–) + 0.35 (V+) – 0.35
TA = –40°C to +125°C, RL = 10 kΩ (V–) + 0.2 (V+) – 0.2
ISC Short-circuit current ±25 mA
CLOAD Capacitive load drive See Typical Characteristics
RO Open-loop output impedance See Typical Characteristics
POWER SUPPLY
IQ Quiescent current per amplifier IO = 0 mA 220 240 μA
TA = –40°C to +125°C 310