AS1527 A/D Converters Datasheet

AS1527 Datasheet, PDF, Equivalent


Part Number

AS1527

Description

(AS1526 / AS1527) A/D Converters

Manufacture

AMSCO

Total Page 2 Pages
Datasheet
Download AS1527 Datasheet


AS1527
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AS1526, AS1527
10-Bit, Single Supply, Low-Power, 73ksps
A/D Converters
1 General Description
2 Key Features
Product Brief
The AS1526/AS1527 are low-power, 10-bit, 73ksps ana-
log-to-digital (A/D) converters specifically designed for
single-supply A/D applications. Superior AC characteris-
tics, very low power consumption, and robust packaging
make these ultra-small devices perfect for battery-pow-
ered analog-data collection devices.
The integrated successive-approximation register (SAR)
and a fast (1.5µs) sampling track/hold time provide an
economic and highly-reliable A/D conversion solution.
The AS1526/AS1527 operate from a single 2.7 to 3.6V
supply. The AS1527 requires an external reference,
using less power than the AS1526, however, the
AS1526 features an internal 2.5V reference.
As with the AS1527, the AS1526 can also be used with
an external reference, which uses the input range 0V to
VREF, including the positive supply range.
The AS1527 consumes only 3mW (VDD = 3V) at the
73ksps maximum sampling speed. Both devices feature
a low-current (0.3µA) shutdown mode, which reduces
power consumption at slower throughput rates.
Data accesses are made via the standard, high-speed
3-wire serial interface, which is SPI-, QSPI-, and
Microwire-compatible. Both devices contain an internal
clock, however, both devices also support an external
clock for increased flexibility.
The AS1526/AS1527 are available in an 8-pin SOIC-150
package.
! 10-Bit Resolution with 7.5µs Conversion Time
! Sampling Rate: 73ksps
! Straight Binary (Unipolar) Data Format
! Single-Supply Operation:+2.7 to +3.6V
! Internal 2.5V Reference (AS1526)
! Low Power-Consumption:
- 4mW (73ksps, AS1526)
- 3mW (73ksps, AS1527)
- 66µW (1ksps, AS1527)
- 1µW (Shutdown Mode)
! Integrated Track/Hold Amplifier
! Internal Clock
! SPI/QSPI/Microwire 3-Wire Serial Interface
! Operating Temperature Range: -40 to +85ºC
! 8-pin SOIC-150 Package
3 Applications
The devices are ideal for remote sensors, data-acquisi-
tion, data logging devices, lab instruments, or for any
other space-limited A/D devices with low power con-
sumption and single-supply requirements.
Figure 1. Block Diagram and Pin Assignments
1
VDD
7
CSN
8
SCLK
3
SHDNN
AS1526/AS1527
Control
Logic
Internal
Clock
Output
Shift
Register
2
AIN
4
REF
Track/
Hold
10-Bit
SAR
2.5V
Ref
6
DOUT
5
GND
VDD 1
8 SCLK
AIN 2
SHDNN 3
AS1526/
AS1527
7 CSN
6 DOUT
REF 4
AS1526
only
5 GND
www.austriamicrosystems.com
Revision 1.02
1-2

AS1527
AS1526, AS1527
Product Brief
austriamicrosystems
Copyrights
Copyright © 1997-2006, austriamicrosystems AG, Schloss Premstaetten, 8141 Unterpremstaetten, Austria-Europe.
Trademarks Registered ®. All rights reserved. The material herein may not be reproduced, adapted, merged, trans-
lated, stored, or used without the prior written consent of the copyright owner.
All products and companies mentioned are trademarks or registered trademarks of their respective companies.
Disclaimer
Devices sold by austriamicrosystems AG are covered by the warranty and patent indemnification provisions appearing
in its Term of Sale. austriamicrosystems AG makes no warranty, express, statutory, implied, or by description regarding
the information set forth herein or regarding the freedom of the described devices from patent infringement. austriami-
crosystems AG reserves the right to change specifications and prices at any time and without notice. Therefore, prior
to designing this product into a system, it is necessary to check with austriamicrosystems AG for current information.
This product is intended for use in normal commercial applications. Applications requiring extended temperature
range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or life-
sustaining equipment are specifically not recommended without additional processing by austriamicrosystems AG for
each application.
The information furnished here by austriamicrosystems AG is believed to be correct and accurate. However,
austriamicrosystems AG shall not be liable to recipient or any third party for any damages, including but not limited to
personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or
consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the tech-
nical data herein. No obligation or liability to recipient or any third party shall arise or flow out of
austriamicrosystems AG rendering of technical or other services.
Contact Information
Headquarters
austriamicrosystems AG
A-8141 Schloss Premstaetten, Austria
Tel: +43 (0) 3136 500 0
Fax: +43 (0) 3136 525 01
For Sales Offices, Distributors and Representatives, please visit:
http://www.austriamicrosystems.com
a u s t r i a m i c r o s y s t e m s – a leap ahead
www.austriamicrosystems.com
Revision 1.02
2-2


Features www.DataSheet4U.com a u s t ri a m i c r o s y s t e m s Product Brief AS1526 , AS1527 1 0 - B i t , S i n g l e S u p p l y, L o w - P o w e r, 7 3 k s ps A/ D Conv e rters 1 General Descriptio n The AS1526/AS1527 are low-power, 10-b it, 73ksps analog-to-digital (A/D) conv erters specifically designed for single -supply A/D applications. Superior AC c haracteristics, very low power consumpt ion, and robust packaging make these ul tra-small devices perfect for battery-p owered analog-data collection devices. The integrated successive-approximation register (SAR) and a fast (1.5µs) sam pling track/hold time provide an econom ic and highly-reliable A/D conversion s olution. The AS1526/AS1527 operate from a single 2.7 to 3.6V supply. The AS152 7 requires an external reference, using less power than the AS1526, however, t he AS1526 features an internal 2.5V ref erence. As with the AS1527, the AS1526 can also be used with an external refer ence, which uses the input range 0V to VREF, including the posit.
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