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PDF AS1527 Data sheet ( Hoja de datos )
| Número de pieza | AS1527 | |
| Descripción | (AS1526 / AS1527) A/D Converters | |
| Fabricantes | AMSCO | |
| Logotipo |  |
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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
1 page | ||
| Páginas | Total 2 Páginas | |
| PDF Descargar | [ Datasheet AS1527.PDF ] | |
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