- 您现在的位置：买卖IC网 > PDF目录383129 > ISL28238 (Intersil Corporation) 4.5MHz, Single and Dual Precision Rail-to-Rail Input-Output (RRIO) Op Amps with Very Low Input Bias Current(具有极低输入偏流的4.5MHz, 单/双精密轨对轨输入-输出(RRIO)运放) PDF资料下载
参数资料
| 型号： | ISL28238 |
| 厂商： | Intersil Corporation |
| 英文描述： | 4.5MHz, Single and Dual Precision Rail-to-Rail Input-Output (RRIO) Op Amps with Very Low Input Bias Current(具有极低输入偏流的4.5MHz, 单/双精密轨对轨输入-输出(RRIO)运放) |
| 中文描述： | 4.5MHz，单和双精密轨至轨输入，输出（RRIO）运算放大器，极低的输入偏置电流（具有极低输入偏流的4.5MHz，单/双精密轨对轨输入-输出（RRIO）运放） |
| 文件页数： | 11/16页 |
| 文件大小： | 861K |
| 代理商： | ISL28238 |
11
FN6336.1
June 28, 2007
Applications Information
Introduction
The ISL28138 and ISL28238 are single and dual channel
CMOS rail-to-rail input, output (RRIO) micropower precision
operational amplifiers. The parts are designed to operate
from single supply (2.4V to 5.5V) or dual supply (±1.2V to
±2.75V). The parts have an input common mode range that
extends 0.25V above the positive rail and 100mV below the
the negative supply rail. The output operation can swing
within about 3mV of the supply rails with a 100k
Ω
load.
Rail-to-Rail Input
Many rail-to-rail input stages use two differential input pairs,
a long-tail PNP (or PFET) and an NPN (or NFET). Severe
penalties have to be paid for this circuit topology. As the
input signal moves from one supply rail to another, the
operational amplifier switches from one input pair to the
other causing drastic changes in input offset voltage and an
undesired change in magnitude and polarity of input offset
current.
The ISL28138 and ISL28238 achieve input rail-to-rail
operation without sacrificing important precision
specifications and degrading distortion performance. The
devices’ input offset voltage exhibits a smooth behavior
throughout the entire common-mode input range. The input
bias current versus the common-mode voltage range gives
us an undistorted behavior from typically 100mV below the
negative rail and 0.25V higher than the V+ rail.
Pin Descriptions
ISL28138
(6 Ld SOT-23)
ISL28138
(8 Ld SO)
ISL28238
(8 Ld SO)
(8 Ld MSOP)
PIN NAME
FUNCTION
EQUIVALENT CIRCUIT
1, 5
NC
Not connected
4
2
2
6
IN-
IN-_A
IN-_B
inverting input
Circuit 1
3
3
3
5
IN+
IN+_A
IN+_B
Non-inverting
input
(See circuit 1)
2
4
4
V-
Negative supply
Circuit 2
1
6
1
7
OUT
OUT_A
OUT_B
Output
Circuit 3
6
7
8
V+
Positive supply
(See circuit 2)
5
8
EN
Chip enable
Circuit 4
IN-
V+
V-
IN+
V+
V-
CAPACITIVELY
COUPLED
ESD CLAMP
V+
V-
OUT
V+
V-
EN
ISL28138, ISL28238
相关PDF资料 |
PDF描述 |
|---|---|
| ISL28158 | 34μA Micro-power Single and Dual Precision Rail-to-Rail Input-Output (RRIO) Low Input Bias Current Op Amps(34μA，微功率单/双精度轨对轨输入-输出(RRIO)，低输入偏流运放) |
| ISL28258 | 34μA Micro-power Single and Dual Precision Rail-to-Rail Input-Output (RRIO) Low Input Bias Current Op Amps(34μA，微功率单/双精度轨对轨输入-输出(RRIO)，低输入偏流运放) |
| ISL28476 | Dual and Quad Micropower Single Supply Rail-to-Rail Input and Output (RRIO) Precision Op Amp(双/四通道，微功率，单电源，轨对轨输入/输出(RRIO)精密运放) |
| ISL28276 | Dual and Quad Micropower Single Supply Rail-to-Rail Input and Output (RRIO) Precision Op Amp(双/四通道，微功率，单电源，轨对轨输入/输出(RRIO)精密运放) |
| ISL29000IROZ | Ambient Light Photo Detect IC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL28238FBZ | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:4.5MHz, Single and Dual Precision Rail-to-Rail Input-Output (RRIO) Op Amps with Very Low Input Bias Current |
| ISL28238FBZ-T7 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:4.5MHz, Single and Dual Precision Rail-to-Rail Input-Output (RRIO) Op Amps with Very Low Input Bias Current |
| ISL28238FUZ | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:4.5MHz, Single and Dual Precision Rail-to-Rail Input-Output (RRIO) Op Amps with Very Low Input Bias Current |
| ISL28238FUZ-T7 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:4.5MHz, Single and Dual Precision Rail-to-Rail Input-Output (RRIO) Op Amps with Very Low Input Bias Current |
| ISL28246 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:5MHz, Single and Dual Rail-to-Rail Input-Output (RRIO) Op Amps |
发布紧急采购，3分钟左右您将得到回复。