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[AK9232/33/34]
= Preliminary = AK9232/33/34
Dual 18/16/14-Bit 1.1MSPS ZDS A/D Converter
General Description
The AK9232/33/34 are 18/16/14-bit 1.1MSPS ZDS* A/D converters. A polar coordinate calculation
function is also integrated, and it reduces the load of DSP or microcomputer. The AK9232/33/34 are
housed in a space-saving 24-pin QFN package.
* ZDS: Zero latency Delta Sigma
A ZDS A/D converter realizes ultrafast response of SAR with maintaining high accuracy conversion like a
delta-sigma converter, based on AKM’s accumulated experience and know-how in analog-digital LSI
technology. It contributes to improve the speed and the accuracy of negative feedback system.
A ZDS A/D converter can achieve small and high accurate motor systems.
Features
Simultaneous Sampling 18/16/14-bit ZDS A/D Converter
Sampling Rate: 1.1MSPS
Differential Inputs
S/N:
88 dBFS(Typ.) at 20kHz Input (AK9232)
87 dBFS(Typ.) at 20kHz Input (AK9233)
84 dBFS(Typ.) at 20kHz Input (AK9234)
18bit No Missing Code, INL: ±2LSB (Typ.) @Vin=-6dBFS (AK9232)
16bit No Missing Code, INL: ±1LSB (Typ.) @Vin=-6dBFS (AK9233)
14bit No Missing Code, INL: ±0.5LSB (Typ.) @Vin=-6dBFS (AK9234)
Polar coordinate calculation function
Offset/Gain adjustment function
Power Consumption:100mW/ch (fs= 1.1MSPS, VDD=1.8V, HVDD=5V,DRVDD=3V)
Power Supply: VDD : 1.7 ~ 2.0V
HVDD: 4.75 ~ 5.25V
DRVDD: 2.7 ~ 5.25V
Operational Temperature Range (Ta): -40 ~ 105ºC
Small Package: 24-pin QFN (4mm x 4mm)
Rev. 0.5
Figure 1. Block Diagram
2015/7

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[AK9232/33/34]
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IMPORTANT NOTICE
0. Asahi Kasei Microdevices Corporation (“AKM”) reserves the right to make changes to the
information contained in this document without notice. When you consider any use or
application of AKM product stipulated in this document (Product), please make inquiries the
sales office of AKM or authorized distributors as to current status of the Products.
1. All information included in this document are provided only to illustrate the operation and
application examples of AKM Products. AKM neither makes warranties or representations with
respect to the accuracy or completeness of the information contained in this document nor
grants any license to any intellectual property rights or any other rights of AKM or any third party
with respect to the information in this document. You are fully responsible for use of such
information contained in this document in your product design or applications. AKM ASSUMES
NO LIABILITY FOR ANY LOSSES INCURRED BY YOU OR THIRD PARTIES ARISING FROM
THE USE OF SUCH INFORMATION IN YOUR PRODUCT DESIGN OR APPLICATIONS.
2. The Product is neither intended nor warranted for use in equipment or systems that require
extraordinarily high levels of quality and/or reliability and/or a malfunction or failure of which
may cause loss of human life, bodily injury, serious property damage or serious public impact,
including but not limited to, equipment used in nuclear facilities, equipment used in the
aerospace industry, medical equipment, equipment used for automobiles, trains, ships and
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explosions, safety devices, elevators and escalators, devices related to electric power, and
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specifically agreed by AKM in writing.
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responsible for complying with safety standards and for providing adequate designs and
safeguards for your hardware, software and systems which minimize risk and avoid situations
in which a malfunction or failure of the Product could cause loss of human life, bodily injury or
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4. Do not use or otherwise make available the Product or related technology or any information
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related technology or any information contained in this document, you should comply with the
applicable export control laws and regulations and follow the procedures required by such laws
and regulations. The Products and related technology may not be used for or incorporated into
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RoHS compatibility of the Product. Please use the Product in compliance with all applicable
laws and regulations that regulate the inclusion or use of controlled substances, including
without limitation, the EU RoHS Directive. AKM assumes no liability for damages or losses
occurring as a result of noncompliance with applicable laws and regulations.
6. Resale of the Product with provisions different from the statement and/or technical features set
forth in this document shall immediately void any warranty granted by AKM for the Product and
shall not create or extend in any manner whatsoever, any liability of AKM.
7. This document may not be reproduced or duplicated, in any form, in whole or in part, without
prior written consent of AKM.
Rev. 0.5
2015/7