EEWORLDEEWORLDEEWORLD

Part Number

Search

ADS-947

Description
14-Bit, 10MHz Sampling A/D Converters
File Size125KB,8 Pages
ManufacturerETC
Download Datasheet Compare View All

ADS-947 Overview

14-Bit, 10MHz Sampling A/D Converters

®
®
ADS-947
14-Bit, 10MHz
Sampling A/D Converters
PRELIMINARY PRODUCT DATA
FEATURES
14-bit resolution
10MHz minimum sampling rate
No missing codes over full military temperature range
Ideal for both time and frequency-domain applications
Excellent THD (–81dB) and SNR (76dB)
Edge-triggered
Small, 24-pin, ceramic DDIP or SMT
Requires only +5V and –5.2V supplies
Low-power, 2 Watts
Low cost
GENERAL DESCRIPTION
The low-cost ADS-947 is a 14-bit, 10MHz sampling A/D
converter. This device accurately samples full-scale input
signals up to Nyquist frequencies with no missing codes.
Excellent differential nonlinearity error (DNL), signal-to-noise
ratio (SNR), and total harmonic distortion (THD) make the
ADS-947 the ideal choice for both time-domain (CCD/FPA
imaging, scanners, process control) and frequency-domain
(radar, telecommunications, spectrum analysis) applications.
The functionally complete ADS-947 contains a fast-settling
sample/hold amplifier, a subranging (two-pass) A/D converter,
an internal reference, timing/control logic, and error-correction
circuitry. Digital input and output levels are TTL. The ADS-947
only requires the rising edge of a start convert pulse to
operate.
Requiring only +5V and –5.2V supplies, the ADS-947 typically
dissipates just 2 Watts. The device is offered with a bipolar
input range of ±2V. Models are available for use in either
commercial (0 to +70°C) or military (–55 to +125°C) operating
PIN
1
2
3
4
5
6
7
8
9
10
11
12
INPUT/OUTPUT CONNECTIONS
FUNCTION
BIT 1 (MSB)
BIT 2
BIT 3
BIT 4
BIT 5
BIT 6
BIT 7
BIT 8
BIT 9
BIT 10
BIT 11
BIT 12
PIN
24
23
22
21
20
19
18
17
16
15
14
13
FUNCTION
ANALOG GROUND
OFFSET ADJUST
+5V ANALOG SUPPLY
ANALOG INPUT
–5.2V SUPPLY
ANALOG GROUND
START CONVERT
DATA VALID
BIT 14 (LSB)
BIT 13
DIGITAL GROUND
+5V DIGITAL SUPPLY
temperature ranges. A proprietary, auto-calibrating, error-
correcting circuit allows the device to achieve specified
performance over the full military temperature range.
OFFSET ADJUST 23
BUFFER
ANALOG INPUT 21
S/H
+
FLASH
ADC
1
16 BIT 14 (LSB)
REGISTER
15 BIT 13
12 BIT 12
DIGITAL CORRECTION LOGIC
11 BIT 11
POWER AND GROUNDING
REF
+5V ANALOG SUPPLY
+5V DIGITAL SUPPLY
–5.2V SUPPLY
ANALOG GROUND
DIGITAL GROUND
22
13
20
19, 24
14
AMP
FLASH
ADC
2
DAC
OUTPUT REGISTER
10 BIT 10
9
8
7
6
5
4
3
2
1
BIT 9
BIT 8
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1 (MSB)
S
START CONVERT 18
DATA VALID 17
TIMING AND
CONTROL LOGIC
Figure 1. ADS-947 Functional Block Diagram
DATEL, Inc., Mansfield, MA 02048 (USA)
Tel: (508) 339-3000, (800) 233-2765 Fax: (508) 339-6356
Email: sales@datel.com
Internet: www.datel.com
REGISTER

ADS-947 Related Products

ADS-947 ADS-947/883 ADS-947GC ADS-947GM ADS-947MC ADS-947MM ADS947
Description 14-Bit, 10MHz Sampling A/D Converters 14-Bit, 10MHz Sampling A/D Converters 14-Bit, 10MHz Sampling A/D Converters 14-Bit, 10MHz Sampling A/D Converters 14-Bit, 10MHz Sampling A/D Converters 14-Bit, 10MHz Sampling A/D Converters 14-Bit, 10MHz Sampling A/D Converters
Modelsim writes testbench to read 8-bit binary data
[i=s] This post was last edited by Zhugeliang1991 on 2014-12-2 22:58 [/i] When I was writing a testbench to read file data into a register, if the data read was 1-bit binary data, it was correct. The ...
猪哥靓1991 FPGA/CPLD
Basic knowledge of power supply
[size=3][color=magenta][b]The answer to this question has been posted. The answer may not be perfect or even wrong. You can try to answer it yourself. If you find that the answer to the question is wr...
okhxyyo Analogue and Mixed Signal
How should a novice in digital circuits save himself?
When I was in college, the teacher of the digital electronics course had a very strange accent. I also thought that the content of digital electronics was boring and could be easily implemented with a...
lingking Integrated technical exchanges
Constant current and constant voltage double closed loop control system composed of TL494
A constant current and constant voltage double closed-loop control system composed of TL494 was developed. The system realizes the constant current regulation and constant voltage regulation functions...
wxf1357 Analogue and Mixed Signal
Avnet Spartan-6 LX9 Microboard Development Tutorial (Chinese)
Avnet Spartan-6 LX9 Microboard Development Tutorial (Chinese)Please click the following link to watch. http://v.youku.com/v_show/id_XMjkwNzc1NDY4.html[[i]This post was last edited by sdjntl on 2011-8-...
sdjntl FPGA/CPLD
[Original] s3c2440a Chinese manual (datasheet), welcome to download
I have used my spare time to translate some chapters of the datasheet of s3c2440a. Due to my limited foreign language proficiency, please forgive me for any shortcomings!! You can download the embedde...
amyhu Embedded System

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 2290  139  1879  266  1271  47  3  38  6  26 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号