ZADCS1282IS20T ZMDI, ZADCS1282IS20T Datasheet - Page 2
![no-image](/images/no-image-200.jpg)
ZADCS1282IS20T
Manufacturer Part Number
ZADCS1282IS20T
Description
Analog to Digital Converters - ADC ADC
Manufacturer
ZMDI
Datasheet
1.ZADCS1222IS14T.pdf
(26 pages)
Specifications of ZADCS1282IS20T
Product Category
Analog to Digital Converters - ADC
Rohs
yes
Number Of Channels
8/4
Architecture
SAR
Conversion Rate
200 KSPs
Resolution
12 bit
Input Type
Single-Ended/Differential
Snr
70 dB
Interface Type
Microwire, QSPI, SPI
Operating Supply Voltage
2.7 V to 5.25 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
SSOP-20
Maximum Power Dissipation
250 mW
Minimum Operating Temperature
- 25 C
Number Of Converters
1
Voltage Reference
2.5 V
Brief Description
The ZMDI ZADCS1282/ZADCS1242/ZADCS1222
are 12-Bit low power analog-to-digital (A/D)
converters with up to 250ksps conversion rate.
The
approximation-register architecture.
All converters have an 8-channel input multiplexer
and a high-bandwidth a track/hold circuit. All
analog inputs are software configurable as eight /
four/two single ended or four/two/one differential
analog input channels as well as for unipolar or
bipolar output coding.
The
operate from a single +2.7V to +5.25V supply.
The
connects directly to a microcontroller using one of
the standards like SPI™, QSPI™, and Microwire™
without external components.
The ZADCS1282/ZADCS1242/ZADCS1222 use
either the external serial-interface clock or an
internally generated clock to perform successive-
approximation analog-to-digital conversions. The
internal clock
synchronous conversions on several ZMDI ADCs
in parallel.
The “V” versions ZADCS1282V/ZADCS1242V/
ZADCS1222V are equipped with a high accurate
internal 2.5V reference with an additional external
±1.5% voltage adjustment range.
The device provides a hard-wired shut-down pin
(nSHDN) and software-selectable power-down
modes to automatically shut down the IC at the
end of a conversion. Accessing the serial interface
automatically
ZADCS1242/ZADCS1222. A quick turn-on time
allows the device to be shut down between
measurements.
Features
© 2011 Zentrum Mikroelektronik Dresden AG — Rev. 2.0
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner.
The information furnished in this publication is PRELIMINARY and subject to changes without notice.
12-Bit resolution SAR ADC
2/4/8 channel single or 1/2/4 channel diff. inputs
Software configurable uni- or bipolar output code
SPI™/QSPI™, Microwire™ compatible serial
interface
No missing codes
Low power consumption
Internal 2.5V reference (only “V” version -
ZADCS1282V/ ZADCS1242V/ZADCS1222V)
Software programmable power down mode
Single-Supply Operation +2.5V to +5.25V
ZADCS1282/1242/1222
12-Bit, 200ksps, ADC Family
synchronous
ZADCS1282/
converter
powers
mode can
is
four
ZADCS1242/
based
up
wire
be used
the
on
serial
ZADCS1282/
ZADCS1222
successive-
interface
to
run
Benefits
Available Suppor
Physical Characteristics
Scalable system solutio
upward/
( 8, 10, 12 bit resolution, 2, 4, 8 channels)
Accurate measurements
Long battery life cycles due to low
consumption
Synchronous sampling with several ZADCS
parts in parallel
ZADCS1282 Kit
- Evaluation Kit f
- Standalone and PC based operation modus
- USB 2.0 (1.1) compatible
- User Interface for PC operated modus
- Graphical oscilloscope app
ADC resolution............................ 12 Bit
Conversion rate...............
Power supply rate ....................... 2.7V to
INL............................................... ±1 LSB ma
DNL ............................................. ±1 LSB max.
SINAD ......................................... >70 dB
Standby (idle) current.................. <0.5 µA
Current consumption @ 200 ksps, 3V sup
- with internal reference .............. < 1.2 mA
- without internal reference ......... < 0.9 mA
Temperature range ..................... -25°C to +
14 / 16 / 20-Pin SSOP package
based on ZADC
downward compatibility within the family
t
S1282 device
or ZMDI ZADCS12x2 Family
............ 200 ksps
ns possible due to
l. and FFT analyzer
5.25V
ply
power
85°C
x.