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TI(德州仪器) OPA827
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  • TI(德州仪器) OPA827
  • TI(德州仪器) OPA827
  • TI(德州仪器) OPA827
  • TI(德州仪器) OPA827
  • TI(德州仪器) OPA827
  • TI(德州仪器) OPA827
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OPA827

OPA827

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低噪声、高精度 JFET 输入运算放大器

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The OPA827 series of JFET operational amplifiers combine outstanding DC precision with excellent AC performance. These amplifiers offer low offset voltage (150 µV, maximum), very low drift over temperature (0.5 µV/°C, typical), low-bias current (3 pA, typical), and very low 0.1-Hz to 10-Hz noise (250 nVPP, typical). The device operates over a wide supply voltage range, ±4 V to ±18 V on a low supply current (4.8 mA/Ch, typical).

Excellent AC characteristics, such as a 22-MHz gain bandwidth product (GBW), a slew rate of 28 V/µs, and precision DC characteristics make the OPA827 series well-suited for a wide range of applications including 16-bit to 18-bit mixed signal systems, transimpedance (I/V-conversion) amplifiers, filters, precision ±10-V front ends, and professional audio applications.

The OPA827 is available in both 8-pin SOIC and 8-pin VSSOP surface-mount packages, and is specified from –40°C to 125°C.

  • Input Voltage Noise Density:
    4 nV/√Hz at 1 kHz
  • Input Voltage Noise:
    0.1 Hz to 10 Hz: 250 nVPP
  • Input Bias Current: 10 pA (Maximum)
  • Input Offset Voltage: 150 µV (Maximum)
  • Input Offset Drift: 2 µV/°C (Maximum)
  • Gain Bandwidth: 22 MHz
  • Slew Rate: 28 V/µs
  • Quiescent Current: 4.8 mA/Ch
  • Wide Supply Range: ±4 V to ±18 V
  • Packages: 8-Pin SOIC and 8-Pin VSSOP
Number of channels1
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V)36
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V)8
Vos (offset voltage at 25°C) (max) (mV)0.15
GBW (typ) (MHz)22
FeaturesBurr-Brown™ Audio
Slew rate (typ) (V/µs)28
Rail-to-railNo
Offset drift (typ) (µV/°C)0.1
Iq per channel (typ) (mA)4.8
Vn at 1 kHz (typ) (nV√Hz)4
CMRR (typ) (dB)114
RatingCatalog
Operating temperature range (°C)-40 to 125
Input bias current (max) (pA)10
Iout (typ) (A)0.03
ArchitectureFET
Input common mode headroom (to negative supply) (typ) (V)3
Input common mode headroom (to positive supply) (typ) (V)-3
Output swing headroom (to negative supply) (typ) (V)3
Output swing headroom (to positive supply) (typ) (V)-3
THD + N at 1 kHz (typ) (%)0.00004
SOIC (D)829.4 mm² 4.9 x 6
VSSOP (DGK)814.7 mm² 3 x 4.9
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