參數(shù)資料
型號(hào)： CS5541-BS
廠商： CIRRUS LOGIC INC
元件分類： ADC
英文描述： Low-power, High-Voltage, 24-Bit Delta-Sigma ADC
中文描述： 2-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO16
封裝： MO-150, SSOP-16
文件頁(yè)數(shù)： 1/26頁(yè)
文件大小： 517K
代理商： CS5541-BS
Preliminary Product Information
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
1
Copyright
Cirrus Logic, Inc. 2000
(All Rights Reserved)
P.O. Box 17847, Austin, Texas 78760
(512) 445 7222 FAX: (512) 445 7581
http://www.cirrus.com
CS5541
Low-Power, Low-Voltage, 24-Bit
Σ
ADC
Features
Σ
Analog-to-Digital Converter
-
Linearity Error: 0.0015% FS
-
RMS Noise: 2
μ
V
Two Channel Differential MUX
Buffered, Fully Differential Analog and
Voltage Reference Inputs
Scalable V
REF
Input: 0.1 V to Analog Supply
Absolute Accuracy via Calibration
Flexible Digital Filters
-
Single Conversion Settling at 13.4 SPS or 4
Conversion Settling at 53.7 SPS with
Simultaneous 50/60 Hz Rejection
-
Single Conversion Settling at 64.8 SPS or Four
Conversion Settling at 260 SPS with 16-bit
Resolution
Simple 3-Wire Serial Interface
-
SPI
TM
and Microwire
TM
Compatible
-
Schmitt Trigger on Serial Clock (SCLK)
Low Power
-
Single +3.0 V Supply
-
330
μ
A Operating; 10
μ
A Sleep Current
Description
The CS5541 is a 24-bit low-power and low-voltage
Σ
analog-to-digital converter (ADC). It is optimized to con-
vert analog signals in DC measurement applications,
such as temperature and pressure measurement, and
various portable devices where low-power consumption
is required.
To accommodate these applications, the ADC integrates
analog input and reference buffers for increased input
impedance and includes a two-channel multiplexer. Ab-
solute accuracy is achieved via one-time or continuous
calibration modes. The device draws less than 330μA.
The CS5541 includes two digital filters. The first filter,
which achieves simultaneous rejection of 50/60 Hz, pro-
vides single conversion settling at 13.4 SPS throughput
or four conversion settling at 53.7 SPS throughput. The
second filter, which achieves 16-bit performance, pro-
vides single conversion settling at 64.8 SPS throughput
or four conversion settling at 260 SPS throughput.
Low-power, low-voltage operation and an easy-to-con-
figure serial interface reduces time-to-market and makes
the CS5541 an ideal device for low-cost, power-con-
scious DC measurement applications.
ORDERING INFORMATION
CS5541-BS-40 oC - +85 oC
16-Pin SSOP
Differential
4th Order
Σ
Modulator
Digital
Filter
Serial
Interface
Calibration
Register
Output
Register
Input
Mux
Clock
Generator
X1
X1
X1
X1
VA+
VA-
VD+
DGND
VREF+
VREF-
OSC1 OSC2
AIN1+
AIN1-
AIN2+
AIN2-
SDI
SDO
SCLK
CS
JUN ‘01
DS500PP1
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