参数资料
| 型号： | AD7724ASTZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC MOD SIGMA-DELTA DUAL 48LQFP |
| 标准包装： | 1 |
| 类型： | 调制器 |
| 分辨率（位）： | 15 b |
| 采样率（每秒）： | 250k |
| 数据接口： | 串行 |
| 电压电源： | 模拟和数字 |
| 电源电压： | 2.85 V ~ 5.25 V，4.75 V ~ 5.25 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-LQFP |
| 供应商设备封装： | 48-LQFP（7x7） |
| 包装： | 托盘 |
REV. B
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
a
AD7724
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
Analog Devices, Inc., 2002
Dual CMOS - Modulators
FUNCTIONAL BLOCK DIAGRAM
AVIN(+)
AVIN(–)
BVIN(+)
BVIN(–)
MZERO
GC
BIP
STBY
RESET
DVDD
DVDD1
DGND
AVDD
AGND
ADATA
SCLK
BDATA
XTAL OFF
XTAL1
XTAL2/MCLK
DVAL
REF1 REF2A
REF2B
CLOCK
CIRCUITRY
AD7724
2.5V
REFERENCE
-
MODULATOR A
-
MODULATOR B
CONTROL
LOGIC
FEATURES
13 MHz Master Clock Frequency
0 V to +2.5 V or
1.25 V Input Range
Single Bit Output Stream
90 dB Dynamic Range
Power Supplies
AVDD, DVDD: 5 V
5%
DVDD1: 3 V
5%
Logic Outputs 3 V/5 V Compatible
On-Chip 2.5 V Voltage Reference
48-Lead LQFP
GENERAL DESCRIPTION
This device consists of two seventh order sigma-delta modula-
tors. Each modulator converts its analog input signal into a high
speed 1-bit data stream. The part operates from a 5 V power
supply and accepts a differential input range of 0 V to +2.5 V or
±1.25 V centered about a common-mode bias. The analog inputs
are continuously sampled by the analog modulators, eliminating
the need for external sample-and-hold circuitry. The input
information is contained in the output stream as a density of
ones. The original information can be digitally reconstructed
with an appropriate digital filter.
The part provides an accurate on-chip 2.5 V reference for each
modulator. A reference input/output function is provided to
allow either the internal reference or an external system refer-
ence to be used as the reference source for the modulator.
The device is offered in a 48-lead LQFP package and designed
to operate from –40
°C to +85°C.
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相关代理商/技术参数 |
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| AD7724ASTZ-REEL | 功能描述:IC MOD SIGMA-DELTA DUAL 48LQFP RoHS:是 类别:集成电路 (IC) >> 数据采集 - ADCs/DAC - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 类型:数据采集系统（DAS） 分辨率（位）:16 b 采样率（每秒）:21.94k 数据接口:MICROWIRE?，QSPI?，串行，SPI? 电压电源:模拟和数字 电源电压:1.8 V ~ 3.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（6x6） 包装:托盘 |
| AD7725 | 制造商:AD 制造商全称:Analog Devices 功能描述:16-Bit 900 kSPS ADC with a Programmable Postprocessor |
| AD7725BS | 制造商:Analog Devices 功能描述:ADC Single Delta-Sigma 900ksps 16-bit Parallel/Serial 44-Pin MQFP 制造商:Rochester Electronics LLC 功能描述:16-BIT PROGRAMMABLE SIGMA-DELTA ADC I.C. - Bulk 制造商:Analog Devices 功能描述:IC 16BIT ADC SMD 7725 MQFP44 |
| AD7725BSC-REEL | 制造商:Analog Devices 功能描述: |
| AD7725BS-REEL | 制造商:Analog Devices 功能描述:ADC Single Delta-Sigma 900ksps 16-bit Parallel/Serial 44-Pin MQFP T/R 制造商:Rochester Electronics LLC 功能描述:16-BIT PROGRAMMABLE SIGMA-DELTA ADC I.C. - Tape and Reel |
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