器件名称: AD8684ARZ-REEL7
功能描述: Dual/Quad Low Power, High Speed JFET Operational Amplifiers
文件大小: 318.1KB 共16页
简 介:Dual/Quad Low Power, High Speed JFET Operational Amplifiers AD8682/AD8684
FEATURES
Low supply current: 250 μA/amp maximum High slew rate: 9 V/μs Bandwidth: 3.5 MHz typical Low offset voltage: 1 mV maximum @ 25°C Low input bias current: 20 pA maximum @ 25°C CMRR: 90 dB typical Fast settling time Unity gain stable
PIN CONFIGURATIONS
OUT A 1 –IN A 2 +IN A 3 V– 4
8
V+ OUT B
06278-001
06278-002
AD8682
TOP VIEW (Not to Scale)
7 6 5
–IN B +IN B
Figure 1. 8-Lead SOIC_N and 8-Lead MSOP
OUT A 1 –IN A 2 +IN A 3 V+ 4 +IN B 5 –IN B 6 OUT B 7 TOP VIEW (Not to Scale)
14 OUT D 13 –IN D 12 +IN D
APPLICATIONS
Portable telecommunication Low power industrial and instrumentation Loop filters Active and precision filters Integrators Strain gauge amplifiers Portable medical instrumentation Supply current monitoring
AD8684
11 V– 10 +IN C 9 8
–IN C OUT C
Figure 2. 14-Lead SOIC_N and 14-Lead TSSOP
GENERAL DESCRIPTION
The AD8682 and AD8684 are dual and quad low power, precision (1 mV) JFET amplifiers featuring excellent speed at low supply currents. The slew rate is typically 9 V/μs with a supply current under 250 μA per amplifier. These unity-gain stable amplifiers have a typical gain bandwidth of 3.5 MHz. The JFET input stage ensures bias current is typically a few picoamps and below 125 pA maximum over the full temperature operating range. The devices are ideal for portable, low power applications, especially with high source impedance. The devices are unity gain stable and can drive h……
