Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

AD7457BRT-REEL7 Datasheet(PDF) 1 Page - Analog Devices

Part # AD7457BRT-REEL7
Description  Low Power, Pseudo Differential, 100 kSPS
Download  20 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7457BRT-REEL7 Datasheet(HTML) 1 Page - Analog Devices

  AD7457BRT-REEL7 Datasheet HTML 1Page - Analog Devices AD7457BRT-REEL7 Datasheet HTML 2Page - Analog Devices AD7457BRT-REEL7 Datasheet HTML 3Page - Analog Devices AD7457BRT-REEL7 Datasheet HTML 4Page - Analog Devices AD7457BRT-REEL7 Datasheet HTML 5Page - Analog Devices AD7457BRT-REEL7 Datasheet HTML 6Page - Analog Devices AD7457BRT-REEL7 Datasheet HTML 7Page - Analog Devices AD7457BRT-REEL7 Datasheet HTML 8Page - Analog Devices AD7457BRT-REEL7 Datasheet HTML 9Page - Analog Devices Next Button
Zoom Inzoom in Zoom Outzoom out
 1 / 20 page
background image
Low Power, Pseudo Differential, 100 kSPS
12-Bit ADC in an 8-Lead SOT-23
AD7457
Rev. A
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.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.326.8703
© 2005 Analog Devices, Inc. All rights reserved.
FEATURES
Specified for VDD of 2.7 V to 5.25 V
Low power:
0.9 mW max at 100 kSPS with VDD = 3 V
3 mW max at 100 kSPS with VDD = 5 V
Pseudo differential analog input
Wide input bandwidth:
70 dB SINAD at 30 kHz input frequency
Flexible power/serial clock speed management
No pipeline delays
High speed serial interface—SPI®-/QSPI™-/
MICROWIRE™-/DSP-compatible
Automatic power-down mode
8-lead SOT-23 package
APPLICATIONS
Transducer interface
Battery-powered systems
Data acquisition systems
Portable instrumentation
FUNCTIONAL BLOCK DIAGRAM
VREF
T/H
CONTROL LOGIC
12-BIT
SUCCESSIVE
APPROXIMATION
ADC
GND
SCLK
SDATA
CS
VDD
AD7457
VIN+
VIN–
Figure 1.
GENERAL DESCRIPTION
The AD7457 is a 12-bit, low power, successive approximation
(SAR) analog-to-digital converter that features a pseudo
differential analog input. This part operates from a single 2.7 V
to 5.25 V power supply and features throughput rates of up to
100 kSPS.
The part contains a low noise, wide bandwidth, differential
track-and-hold (T/H) amplifier that can handle input frequen-
cies in excess of 1 MHz. The reference voltage for the AD7457 is
applied externally to the VREF pin and can range from 100 mV to
VDD, depending on what suits the application.
The conversion process and data acquisition are controlled
using CS and the serial clock, allowing the device to interface
with microprocessors or DSPs. The SAR architecture of this
part ensures that there are no pipeline delays.
The AD7457 uses advanced design techniques to achieve very
low power dissipation.
PRODUCT HIGHLIGHTS
1.
Operation with 2.7 V to 5.25 V power supplies.
2.
Low power consumption. With a 3 V supply, the AD7457
offers 0.9 mW maximum power consumption for a
100 kSPS throughput rate.
3.
Pseudo differential analog input.
4.
Flexible power/serial clock speed management. The
conversion rate is determined by the serial clock, allowing
the power to be reduced as the conversion time is reduced
through the serial clock speed increase. Automatic power-
down after conversion allows the average power consump-
tion to be reduced.
5.
Variable voltage reference input.
6.
No pipeline delays.
7.
Accurate control of the sampling instant via the CS input
and once-off conversion control.
8.
ENOB > 10 bits typically with 500 mV reference.


Similar Part No. - AD7457BRT-REEL7

ManufacturerPart #DatasheetDescription
logo
Analog Devices
AD7457BRT-REEL7 AD-AD7457BRT-REEL7 Datasheet
509Kb / 20P
   Low Power, Pseudo Differential, 100 kSPS 12-Bit ADC in an 8-Lead SOT-23
REV. 0
AD7457BRT-REEL7 AD-AD7457BRT-REEL7 Datasheet
491Kb / 21P
   Low Power, Pseudo Differential, 100 kSPS 12-Bit ADC in an 8-Lead SOT-23
REV. A
AD7457BRT-REEL7 AD-AD7457BRT-REEL7 Datasheet
343Kb / 21P
   Low Power, Pseudo Differential, 100 kSPS 12-Bit ADC in an 8-Lead SOT-23
More results

Similar Description - AD7457BRT-REEL7

ManufacturerPart #DatasheetDescription
logo
Analog Devices
AD7457 AD-AD7457_17 Datasheet
343Kb / 21P
   Low Power, Pseudo Differential, 100 kSPS 12-Bit ADC in an 8-Lead SOT-23
AD7457 AD-AD7457_15 Datasheet
524Kb / 21P
   Low Power, Pseudo Differential, 100 kSPS 12-Bit ADC in an 8-Lead SOT-23
REV. A
logo
Texas Instruments
ADC141S628-Q1 TI1-ADC141S628-Q1 Datasheet
992Kb / 29P
[Old version datasheet]   14-Bit, 200-kSPS, Pseudo-Differential, Micro-Power ADC
logo
Analog Devices
AD7457BRT AD-AD7457BRT Datasheet
491Kb / 21P
   Low Power, Pseudo Differential, 100 kSPS 12-Bit ADC in an 8-Lead SOT-23
REV. A
AD7457 AD-AD7457 Datasheet
509Kb / 20P
   Low Power, Pseudo Differential, 100 kSPS 12-Bit ADC in an 8-Lead SOT-23
REV. 0
AD7942 AD-AD7942_15 Datasheet
383Kb / 24P
   14-Bit, 250 kSPS PulSAR, Pseudo Differential ADC in MSOP/LFCSP
REV. C
AD7942 AD-AD7942 Datasheet
555Kb / 24P
   14-Bit, 250 kSPS PulSAR, Pseudo Differential ADC in MSOP/QFN
REV. B
AD7675 AD-AD7675 Datasheet
399Kb / 20P
   16-Bit, 100 kSPS, Differential ADC
REV. 0
AD7675 AD-AD7675_17 Datasheet
342Kb / 21P
   16-Bit, 100 kSPS Differential ADC
AD7453 AD-AD7453_17 Datasheet
424Kb / 21P
   Pseudo Differential, 555 kSPS 12-Bit ADC in an 8-Lead SOT-23
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.NET
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com