型号OPA237
品牌
分类精密运算放大器 (Vos<1mV)
描述MicroAmplifier™ 系列、单电源运算放大器
相关操作
产品概述

参数

Number of channels 1
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7
Vos (offset voltage at 25°C) (max) (mV) 0.95
GBW (typ) (MHz) 1.5
Slew rate (typ) (V/µs) 0.5
Rail-to-rail In to V-
Offset drift (typ) (µV/°C) 2.5
Iq per channel (typ) (mA) 0.2
Vn at 1 kHz (typ) (nV√Hz) 28
CMRR (typ) (dB) 90
Rating Catalog
Operating temperature range (°C) -40 to 70
Input bias current (max) (pA) 40000
Iout (typ) (A) 0.0045
Architecture Bipolar
Input common mode headroom (to negative supply) (typ) (V) -0.2
Input common mode headroom (to positive supply) (typ) (V) -1.5
Output swing headroom (to negative supply) (typ) (V) 0.3
Output swing headroom (to positive supply) (typ) (V) -0.9

封装 | 引脚 | 尺寸

SOIC (D) 8 29.4 mm² 4.9 x 6
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8

特性

  • 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.

说明

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.