OPA237 Single-Supply Operational Amplifiers MicroAmplifier™ Series | TI.com

OPA237 (ACTIVE)

Single-Supply Operational Amplifiers MicroAmplifier™ Series

 

Description

The OPA237 op amp family is one of Texas Instruments’ MicroAmplifier™ series of miniature products. In addition to small size, these devices feature low offset voltage, low quiescent current, low bias current, and a wide supply range. Single, dual, and quad versions have identical specifications for maximum design flexibility. They are ideal for single-supply, battery-operated, and space-limited applications, such as PCMCIA cards and other portable instruments.

OPA237 series op amps can operate from either single or dual supplies. When operated from a single supply, the input common-mode range extends below ground and the output can swing to within 10mV of ground. Dual and quad designs feature completely independent circuitry for lowest crosstalk and freedom from interaction.

Single, dual, and quad are offered in space-saving surface-mount packages. The single version is available in the ultra-miniature 5-lead SOT23-5 and SO-8 surface-mount. The dual version comes in a miniature MSOP-8 and SO-8 surface-mount. The quad version is obsolete. MSOP-8 has the same lead count as a SO-8 but half the size. The SOT23-5 is even smaller at one-fourth the size of an SO-8. All are specified for -40°C to +85°C operation. A macromodel is available for design analysis.

Features

  • MICRO-SIZE, MINIATURE PACKAGES
    • Single: SOT-23-5, SO-8
    • Dual: MSOP-8, SO-8
    • Quad: SSOP-16 (Obsolete)
  • LOW OFFSET VOLTAGE: 750µV max
  • WIDE SUPPLY RANGE
    • Single Supply: +2.7V to +36V
    • Dual Supply: ±1.35V to ±18V
  • LOW QUIESCENT CURRENT: 350µA max
  • WIDE BANDWIDTH: 1.5MHz
  • APPLICATIONS
    • BATTERY POWERED INSTRUMENTS
    • PORTABLE DEVICES
    • PCMCIA CARDS
    • MEDICAL INSTRUMENTS
    • TEST EQUIPMENT

MicroAmplifier is a trademark of Texas Instruments. All other trademarks are the property of their respective owners.

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Parametrics Compare all products in Precision op amps (Vos<1mV)

 
Number of channels (#)
Total Supply Voltage (Min) (+5V=5, +/-5V=10)
Total Supply Voltage (Max) (+5V=5, +/-5V=10)
GBW (Typ) (MHz)
Slew Rate (Typ) (V/us)
Rail-to-rail
Vos (offset voltage @ 25 C) (Max) (mV)
Offset drift (Typ) (uV/C)
Iq per channel (Typ) (mA)
Vn at 1 kHz (Typ) (nV/rtHz)
CMRR (Typ) (dB)
Rating
Operating temperature range (C)
Package Group
Package size: mm2:W x L (PKG)
Input bias current (Max) (pA)
Output current (Typ) (mA)
Features
Architecture
OPA237 OPA2237
1     2    
2.7     2.7    
36     36    
1.4     1.4    
0.5     0.5    
In to V-     In to V-    
0.95     0.95    
1.3     1.3    
0.2     0.2    
28     28    
90     90    
Catalog     Catalog    
-40 to 70     -40 to 85    
SOIC | 8
SOT-23 | 5    
SOIC | 8
VSSOP | 8    
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)
5SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 5)    
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)    
40000     40000    
4.5     4.5    
   
   
Bipolar     Bipolar    

Design tool

WEBENCH® Designer OPA237

Amplifier Topology
 Non-inverting
 Inverting
Desired Power Supply Voltage
Positive Supply (Vcc):  V
Negative Supply (Vee):  V
Allowed Power Supply(Vcc-Vee) = 2.7 to 36.0 V
Desired Input and Output Requirements
  Min Max
Vin  V  V
Vout  V  V
Minimum Temperature = -40.0 °C
Maximum Temperature = 85.0 °C