[AK9232/33/34]
AK9232/33/34
Dual 18/16/14-Bit 1.1MSPS ZDS A/D Converter
1.
General Description
The AK9232/33/34 are 18/16/14-bit 1.1MSPS ZDS
(
*
)
A/D converter. A polar coordinate calculation
function is also integrated, and it reduces the load of DSP or microcomputer. The AK9232/33/34 are
available in an ultra-small package, saving space on the printing board.
(*) ZDS: Zero latency Delta Sigma
A ZDS A/D converter realizes ultrafast response of SAR while 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 improving the speed and the accuracy of negative feedback circuits.
A ZDS A/D converter can achieve small and high accurate motor systems..
□
2. Features
2ch Simultaneous Sampling 18/16/14-bit ZDS A/D Converter
Sampling Rate: 1.1MSPS
Differential Input
S/N: 88 dB (Typ.) at 20 kHz Input (AK9232)
88 dB (Typ.) at 20 kHz Input (AK9233)
84 dB (Typ.) at 20 kHz Input (AK9234)
18-bit No Missing Code, INL: ±5.0 LSB (Typ.) @Vin = -6dBFS (AK9232)
16-bit No Missing Code, INL: ±1.25 LSB (Typ.) @Vin = -6dBFS (AK9233)
14-bit No Missing Code, INL: ±0.75 LSB (Typ.) @Vin = -6dBFS (AK9234)
Polar coordinate calculation function
Offset/Gain Adjustment Function
Power Consumption: 130 mW/ch (fs=1.1MSPS, VDD=1.8V, HVDD= 5V, DRVDD=3V)
Power Supply
VDD: 1.7 ~ 2.0 V
HVDD: 4.75 ~ 5.25 V
DRVDD: 2.7 ~ 5.25 V
Operational Temperature Range: -40 ~ 105ºC
Package: Ultra Small 24-pin QFN (4mm x 4mm)
Figure 1. Block Diagram
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2016/12
[AK9232/33/34]
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please contact our sales office or authorized distributors.
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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.
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application examples of AKM Products. AKM neither makes warranties or representations with
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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
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including but not limited to, equipment used in nuclear facilities, equipment used in the
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occurring as a result of noncompliance with applicable laws and regulations.
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shall not create or extend in any manner whatsoever, any liability of AKM.
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