ZADCS1222IS14T ZMDI, ZADCS1222IS14T Datasheet - Page 5
![no-image](/images/no-image-200.jpg)
ZADCS1222IS14T
Manufacturer Part Number
ZADCS1222IS14T
Description
Analog to Digital Converters - ADC ADC
Manufacturer
ZMDI
Datasheet
1.ZADCS1222IS14T.pdf
(26 pages)
Specifications of ZADCS1222IS14T
Product Category
Analog to Digital Converters - ADC
Rohs
yes
Number Of Channels
2/1
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-14
Maximum Power Dissipation
250 mW
Minimum Operating Temperature
- 25 C
Number Of Converters
1
Voltage Reference
2.5 V
List of Figures
Figure 1 Package Pin Assignment for ZADCS1282 & ZADCS1282V........................................................................8
Figure 2 Package Pin Assignment for ZADCS1242 & ZADCS1242V........................................................................9
Figure 3 Package Pin Assignment for ZADCS1222 & ZADCS1222V......................................................................10
Figure 4: Basic application schematic for ZADCS1282V .........................................................................................15
Figure 5: Basic application schematic for ZADCS1282............................................................................................15
Figure 6: Input voltage range in unipolar mode ........................................................................................................16
Figure 7: Input voltage range for bipolar mode ........................................................................................................16
Figure 8: Block diagram of input multiplexer ............................................................................................................17
Figure 9: Equivalent input circuit during sampling....................................................................................................17
Figure 10: Reference Adjust Circuit..........................................................................................................................18
Figure 11: 24-Clock External Clock Mode Timing (f
Figure 12: Internal Clock Mode Timing with interleaved Control Byte transmission ................................................19
Figure 13: 16-Clock External Clock Mode Conversion.............................................................................................20
Figure 14: 13-Clock External Clock Mode Conversion.............................................................................................20
Figure 15 Detailed Timing Diagram..........................................................................................................................21
Figure 16: Unipolar Transfer Function......................................................................................................................22
Figure 17: Bipolar Transfer Function ........................................................................................................................22
Figure 18: Supply Current versus Sampling Rate ....................................................................................................24
Figure 19: Optimal Power-Supply Grounding System..............................................................................................24
Figure 20: Package Outline Dimensions ..................................................................................................................25
Data Sheet
October 12, 2011
ZADCS1282/1242/1222
12-Bit, 200ksps, ADC Family
© 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.
SCLK
≤ 3.2MHz)
.........................................................................19
5 of 26