参数资料
型号: ISL28325FBZ-T13
厂商: Intersil
文件页数: 7/10页
文件大小: 0K
描述: IC OP AMP DUAL 1.2MHZ LN 8SOIC
标准包装: 2,500
放大器类型: 通用
电路数: 2
转换速率: 0.4 V/µs
增益带宽积: 1.2MHz
电流 - 输入偏压: 200pA
电压 - 输入偏移: 100µV
电流 - 电源: 500µA
电流 - 输出 / 通道: 40mA
电压 - 电源,单路/双路(±): 4.5 V ~ 40 V,±2.25 V ~ 20 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 带卷 (TR)
ISL28325, ISL28345
6
September 27, 2011
FN7854.0
Applications Information
Functional Description
The ISL28325 and ISL28345 are dual and quad general purpose
amplifiers featuring low noise vs power consumption. They are
offered in industry standard pinouts in 8 Ld SOIC, 8 Ld MSOP and
14 Ld SOIC packages. Applications for this amplifier include
active filters, medical and analytical instrumentation, power
supply controls, and industrial controls..
Operating Voltage Range
The devices are designed to operate over the 4.5V (±2.25V) to
40V (±20V) range over the -40°C to +125°C temperature range.
For best amplifier performance, decouple the power supply with
a 0.01F or larger capacitors by placing them close to the supply
pins of the amplifier.
Input ESD Diode Protection
The input terminals (IN+ and IN-) have internal ESD protection
diodes to the positive and negative supply rails, series connected
500
Ω current limiting resistors and an anti-parallel diode pair
across the inputs.
The series resistors limit the high feed-through currents that can
occur in pulse applications when the input dV/dT exceeds the
0.4V/s slew rate of the amplifier. Without the series resistors, the
input can forward-bias the anti-parallel diodes causing current to
flow to the output resulting in severe distortion and possible diode
failure.
In applications where one or both amplifier input terminals are at
risk of exposure to high voltages beyond the power supply rails,
current limiting resistors may be needed at the input terminal to
limit the current through the power supply ESD diodes to 20mA
max.
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