EEWORLDEEWORLDEEWORLD

Part Number

Search

ADS947

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

ADS947 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

ADS947 Related Products

ADS947 ADS-947 ADS-947/883 ADS-947GC ADS-947GM ADS-947MC ADS-947MM
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
Try the second one.
Hello everyone, something happened at home, I have to accompany my grandma in the hospital. The elderly are not in good health, hey, she fell ill again. I wish you good health, eat less meat in summer...
gaoyang9992006 Analogue and Mixed Signal
Question + Do you have any good suggestions for writing large amounts of data to the C8051f microcontroller?
Specifically, after the MCU starts working, I want to use the host computer to write about 30,000 bytes of data to the MCU and store it in the MCU's FlashROM so that it can still be used after power f...
lingergz 51mcu
I plan to start a business in Shenzhen after the new year, working in the field of medical devices. I hope everyone can share their opinions.
I graduated with a Ph.D. in July and joined one of the best research institutes in aerospace systems, doing work unrelated to my major. Since I started a business during my Ph.D., I worked on driver t...
luodeba Medical Electronics
During the Dragon Boat Festival, we climbed up the hill behind the botanical garden. Did anyone go with us?
During the Dragon Boat Festival, we climbed from the back mountain of the Botanical Garden. Did you go with someone? This week, we worked on Saturday and Sunday, and rested on Monday, Tuesday and Wedn...
wangkj Talking
EEWORLD University ---- Haiwell IoT Cloud HMI Quick Start Video Tutorial
Haiwell IoT Cloud HMI Quick Start Video Tutorial : https://training.eeworld.com.cn/course/5491Haiwell IoT Cloud HMI Quick Start Video Tutorial...
自动化小为 Industrial Control Electronics

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 549  2383  519  947  2651  12  48  11  20  54 
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