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參數(shù)資料
| 型號： | SP8537 |
| 英文描述： | Micropower Sampling 10-Bit A/D Converter |
| 中文描述： | 微采樣10位A / D轉(zhuǎn)換器 |
| 文件頁數(shù)： | 7/12頁 |
| 文件大小： | 220K |
| 代理商： | SP8537 |
7
SP8537DS/03
SP8537 Micropower Sampling 10–Bit Voltage A/D Converter
Copyright 2000 Sipex Corporation
In full differential mode, the high and low side
board traces should run close to each other, with
the same layout. This will insure that any noise
coupling will be common mode, and cancelled
by the converters (patent pending) full differen-
tial architecture.
If separate analog and digital ground planes are
not possible, care should be used to prevent
coupling between analog and digital signals. If
analog and digital lines must cross, they should
do so at right angles. Parallel analog and digital
lines should be separated by a circuit board trace
which is connected to common.
The
SP8537
VCC pin is also the reference pin
for the device. This means that noise on the VCC
pin will be proportionally represented as noise
in the converters output data. A noise signal of
4.88mV (at a 5V supply) will produce 1 LSB of
error in the output data. The VCC pin should be
bypassed to the ground pin with a parallel
combination of a 6.8
μ
F tantalum and a 0.1
μ
F
ceramic capacitor. To maintain maximum
system accuracy, the supply connected to the
VCC pin should be well isolated from digital
supplies and wide load variations. A separate
conductor from the supply regulator to the A/D
converter will limit the effects of digital switching
elsewhere in the system. Power supply noise can
degrade the converters performance. Especially
corrupting are noise and spikes from a switching
power supply.
To avoid introducing distortion when driving the
A/D converter input, the input signal source
should be able to charge the
SP8537's
equivalent
20 pF of input capacitance from zero volts to
the signal level in 1.5 clock periods.
SP8537 Timing Diagram
MSB First Conversion
LSB First Conversion
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SP8538JN | RECTIFIER STANDARD SINGLE 1A 50V 50 30A-ifsm 5uA-ir 1.1V-vf MELF 5K/REEL |
| SP8538 | Micropower Sampling 12-Bit A/D Converter |
| SP8538AN | Micropower Sampling 12-Bit A/D Converter |
| SP8538AS | Micropower Sampling 12-Bit A/D Converter |
| SP8538BN | Micropower Sampling 12-Bit A/D Converter |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP8538 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Micropower Sampling 12-Bit A/D Converter |
| SP8538AN | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Micropower Sampling 12-Bit A/D Converter |
| SP8538AS | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Micropower Sampling 12-Bit A/D Converter |
| SP8538BN | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Micropower Sampling 12-Bit A/D Converter |
| SP8538BS | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Micropower Sampling 12-Bit A/D Converter |
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