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參數(shù)資料
| 型號： | MAX5426CEUD+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 6/9頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC INSTR AMP PROGR PREC 14-TSSOP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 系列： | * |
| 類型： | * |
| 應(yīng)用： | * |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 14-TSSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 14-TSSOP |
| 包裝： | 帶卷 (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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| MAX5427ETA+T | 功能描述:數(shù)字電位計 IC 32-Tap One-Time Programmable RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| MAX5427ETA-T | 功能描述:數(shù)字電位計 IC RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
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