型号OPA4830
品牌
分类高速运算放大器 (GBW ≥ 50MHz)
描述四路、低功耗、单电源、宽带运算放大器
相关操作
产品概述

参数

Architecture Voltage FB
Number of channels 4
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.8
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 11
GBW (typ) (MHz) 110
BW at Acl (MHz) 280
Acl, min spec gain (V/V) 1
Slew rate (typ) (V/µs) 560
Vn at flatband (typ) (nV√Hz) 9.2
Vn at 1 kHz (typ) (nV√Hz) 9.5
Iq per channel (typ) (mA) 4.25
Vos (offset voltage at 25°C) (max) (mV) 8
Rail-to-rail In to V-, Out
Rating Catalog
Operating temperature range (°C) -40 to 85
CMRR (typ) (dB) 80
Input bias current (max) (pA) 10000000
Offset drift (typ) (µV/°C) 30
Iout (typ) (mA) 75
2nd harmonic (dBc) 60
3rd harmonic (dBc) 59
Frequency of harmonic distortion measurement (MHz) 5

封装 | 引脚 | 尺寸

TSSOP (PW) 14 32 mm² 5 x 6.4

特性

  • HIGH BANDWIDTH:
    280MHz (G = +1)
    120MHz (G = +2)
  • LOW SUPPLY CURRENT:
    3.9mA/ch (VS = +5V)
  • FLEXIBLE SUPPLY RANGE:
    ±1.4V to ±5.5V Dual Supply
    +2.8V to +11V Single Supply
  • INPUT RANGE INCLUDES GROUND ON SINGLE SUPPLY
  • 4.91V OUTPUT SWING ON +5V SUPPLY
  • HIGH SLEW RATE: 560V/µs
  • LOW INPUT VOLTAGE NOISE: 9.2nV/Hz
  • AVAILABLE IN A TSSOP-14 PACKAGE
  • APPLICATIONS
    • SINGLE-SUPPLY ANALOG-TO-DIGITAL CONVERTER (ADC) INPUT BUFFERS
    • SINGLE-SUPPLY VIDEO LINE DRIVERS
    • CCD IMAGING CHANNELS
    • ACTIVE FILTERS
    • PLL INTEGRATORS
    • PORTABLE CONSUMER ELECTRONICS

All other trademarks are the property of their respective owners.

说明

The OPA4830 is a quad, low-power, single-supply, wideband, voltage-feedback amplifier designed to operate on a single +3V or +5V supply. Operation on ±5V or +10V supplies is also supported. The input range extends below the negative supply and to within 1.8V of the positive supply. Using complementary common-emitter outputs provides an output swing to within 220mV of either supply while driving 150 . High output drive current (±80mA) and low differential gain and phase errors also make this amplifier an excellent choice for single-supply consumer video products.

Low distortion operation is ensured by the high gain bandwidth product (110MHz) and slew rate (560V/µs), making the OPA4830 an ideal input buffer stage to 3V and 5V CMOS analog-to-digital converters (ADCs). Unlike other low-power, single-supply amplifiers, distortion performance improves as the signal swing is decreased. A low 9.2nV/Hz input voltage noise supports wide dynamic range operation.

The OPA4830 is available in an industry-standard quad pinout TSSOP-14 package.