AK9242NK

[AK9242]
E-00 2017/6
1. General Description
The AK9242 is an Analog Front End with 16-bit 1.1MSPS ZDS* A/D converters. They integrate a
programmable gain amplifier (PGA) that is able to select input range according to a system. A polar
coordinate calculation function is also integrated, and it reduces the load of DSP or microcomputer. The
AK9242 is 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. The
AK9242 has longer acquisition time than an SAR, reducing buffer load of input stage of the IC. For
example, a ZDS A/D converter can achieve small, fast and high accurate motor systems.
2. Features
Simultaneous Sampling 16-bit ZDS A/D Converter
Sampling Rate: 1.1MSPS
Differential Inputs
Current Input or Voltage Input Selectable
Selectable Low-Pass Filter
PGA Function
S/N: 82 dBFS (Typ.) at 20kHz Input
16bit No Missing Code, INL: ±8 LSB (Max.)
Polar coordinate calculation function
Offset/Gain/Phase adjustment function
Power Consumption: 104mA (Typ.) (Voltage Input Mode, fs= 1.1MSPS, VDD=5V,DRVDD=3V)
Power Supply: VDD: 4.2 ~ 5.5V
DRVDD: 2.7 ~ 5.5V
Operational Temperature Range (Ta): -40 ~ 105ºC
Small Package: 24-pin QFN (4mm x 4mm)
Figure 1. Block Diagram
AFE with Dual 16-Bit 1.1MSPS ZDS A/D Converter
AK9242
[AK9242]
E-00 2017/6
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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
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including but not limited to, equipment used in nuclear facilities, equipment used in the
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shall not create or extend in any manner whatsoever, any liability of AKM.
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AK9242NK

Mfr. #:
Manufacturer:
Description:
IC ADC 18BIT SAR 24QFN
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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