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TI(德州仪器) OPA333A-EP
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  • TI(德州仪器) OPA333A-EP
  • TI(德州仪器) OPA333A-EP
  • TI(德州仪器) OPA333A-EP
  • TI(德州仪器) OPA333A-EP
  • TI(德州仪器) OPA333A-EP
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OPA333A-EP

OPA333A-EP

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增强型微功耗 1.8V、17μA 零漂移 CMOS 精密运算放大器

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The OPA333A series of CMOS operational amplifiers uses a proprietary auto-calibration technique to simultaneously provide very low offset voltage (10 µV max) and near-zero drift over time and temperature. These miniature, high-precision, low-quiescent-current amplifiers offer high-impedance inputs that have a common-mode range 100 mV beyond the rails, and rail-to-rail output that swings within 50 mV of the rails. Single or dual supplies as low as 1.8 V (±0.9 V) and up to 5.5 V (±2.75 V) may be used. They are optimized for low-voltage single-supply operation.

The OPA333A family offers excellent common-mode rejection ratio (CMRR) without the crossover associated with traditional complementary input stages. This design results in superior performance for driving analog-to-digital converters (ADCs) without degradation of differential linearity.

The OPA333A (single version) is available in the SC70-5 and SOT23-5 packages. The OPA2333A (dual version) is offered in the SO-8 package. All versions are specified for operation from -55°C to 125°C.

  • Low Offset Voltage: 23 µV (Max)
  • 0.01-Hz to 10-Hz Noise: 1.1 VPP
  • Quiescent Current: 17 µA
  • Single-Supply Operation
  • Supply Voltage: 1.8 V to 5.5 V
  • Rail-to-Rail Input/Output
  • MicroSize Packages: SC70 and SOT23
  • APPLICATIONS
    • Transducer Applications
    • Temperature Measurements
    • Electronic Scales
    • Medical Instrumentation
    • Battery-Powered Instruments
    • Handheld Test Equipment
  • SUPPORTS DEFENSE, AEROSPACE, AND MEDICAL APPLICATIONS
    • Controlled Baseline
    • One Assembly/Test Site
    • One Fabrication Site
    • Available in Military (-55°C/125°C) Temperature Range(1)
    • Extended Product Life Cycle
    • Extended Product-Change Notification
    • Product Traceability

(1)Custom temperature ranges available

Number of channels1
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V)5.5
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V)1.8
Vos (offset voltage at 25°C) (max) (mV)0.01
GBW (typ) (MHz)0.35
FeaturesEMI Hardened, Zero Drift
Slew rate (typ) (V/µs)0.16
Rail-to-railIn, Out
Offset drift (typ) (µV/°C)0.02
Iq per channel (typ) (mA)0.017
Vn at 1 kHz (typ) (nV√Hz)65
CMRR (typ) (dB)130
RatingHiRel Enhanced Product
Operating temperature range (°C)-55 to 125
Input bias current (max) (pA)200
Iout (typ) (A)0.005
ArchitectureCMOS
Input common mode headroom (to negative supply) (typ) (V)-0.1
Input common mode headroom (to positive supply) (typ) (V)0.1
Output swing headroom (to negative supply) (typ) (V)0.03
Output swing headroom (to positive supply) (typ) (V)-0.03
SOT-23 (DBV)58.12 mm² 2.9 x 2.8
SOT-SC70 (DCK)54.2 mm² 2 x 2.1
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