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| 型号： | MAX5426CEUD+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/9页 |
| 文件大小： | 0K |
| 描述： | IC INSTR AMP PROGR PREC 14-TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 系列： | * |
| 类型： | * |
| 应用： | * |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 14-TSSOP |
| 包装： | 带卷 (TR) |
MAX5426
Precision Resistor Network for
Programmable Instrumentation Amplifiers
6
_______________________________________________________________________________________
Applications Information
The MAX5426 is ideal for programmable instrumentation
amplifier applications. The typical application circuit of
Figure 1 uses the MAX5426 in classical instrumentation
amplifier configurations. Two digital inputs set the gain to
1, 2, 4, or 8.
Op Amp Selection Guidelines
Selection of an op amp for instrumentation amplifier cir-
cuits depends on the accuracy requirements of the
specific application. General guidelines are to choose
an op amp with sufficient open-loop gain, low input-off-
set voltage, and a high common-mode rejection ratio.
High open-loop gain is needed to increase the gain
accuracy, while low input-offset voltage and low input-
offset current help meet gain and offset requirements.
Other parameters such as low input capacitance, low
input bias current, high input common-mode range,
and low noise often need to be considered for a wide
input voltage range stability and AC considerations.
The MAX427 is an excellent choice to use with the
MAX5426.
Stereo Audio-Taper Attenuator
Figure 2 shows the application of the MAX5426 as a dual
attenuator that can be used in stereo audio systems.
Power Supplies and Bypassing
The MAX5426 operates from dual ±5V to ±15V sup-
plies. In many applications the MAX5426 does not
require bypassing. If power-supply noise is excessive,
bypass VDD and VSS with 0.1F ceramic capacitors to
GND.
Layout Concerns
For best performance, reduce parasitic board capaci-
tance by minimizing the circuit board trace from ampli-
fier outputs to inverting inputs. Also choose op amps
with low input capacitance.
CM
FB2
INDIF-
OUT2
INDIF+
OUT
OFFSET
VDD
VIN-
VIN+
GND
D1
D0
FB1
OUT1
VSS
VOUT
MAX5426
MAX427
Figure 1. Programmable Instrumentation Amplifier Using MAX5426
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5427EGA | 制造商:Maxim Integrated Products 功能描述:ONE-TIME PROGRAMMABLE, LINEAR-TAPER DIGITAL P - Rail/Tube |
| MAX5427ETA | 制造商:Maxim Integrated Products 功能描述:ONE-TIME PROGRAMMABLE, LINEAR-TAPER DIGITAL P - Rail/Tube |
| MAX5427ETA+ | 制造商:Maxim Integrated Products 功能描述:DGTL POTENTIOMETER 32POS 100KOHM SGL 8TDFN EP - Rail/Tube |
| MAX5427ETA+T | 功能描述:数字电位计 IC 32-Tap One-Time Programmable RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
| MAX5427ETA-T | 功能描述:数字电位计 IC RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
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