Datasheet > AK9242

AK9242

更新时间： 2024-09-25 01:20:31

品牌	Logo	应用领域
AKM		/
页数	文件大小	规格书
2页	214K
描述
AFE with Dual 16/14-Bit 1.1MSPS ZDS A/D Converter

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AK9242 数据手册

[AK9242/43]

= Preliminary =

AK9242/43

AFE with Dual 16/14-Bit 1.1MSPS ZDS A/D Converter

General Description

The AK9242/43 are Analog Front Ends with 16/14-bit 1.1MSPS ZDS* A/D converters. They integrate a

programmable gain amplifier (PGA) that is able to select the input current and the input voltage realizing

to control the input range. A polar coordinate calculation function is also integrated, and it reduces the

load of DSP or microcomputer. The AK9242/43 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 16/14-bit ZDS A/D Converter

 Sampling Rate: 1.1MSPS

 Differential Inputs

 Current Input or Voltage Input Selectable

 PGA Function

 Low Pass Filter

 S/N:

81 dBFS (Typ.) at 10kHz Input

80 dBFS (Typ.) at 10kHz Input

INL: ±2LSB (Typ.)

(AK9242)

(AK9243)

(AK9242)

(AK9243)

 16bit No Missing Code,

14bit No Missing Code,

INL: ±1LSB (Typ.)

 Polar coordinate calculation function

 Offset/Gain adjustment function

 Power Consumption: 253mW/ch (fs= 1.1MSPS, HVDD=5V,DRVDD=3V)

 Power Supply:

HVDD: 4.75 ~ 5.25V

DRVDD: 2.7 ~ 5.25V

 Operational Temperature Range (Ta): -40 ~ 105ºC

 Small Package: 24-pin QFN (4mm x 4mm)

Figure 1. Block Diagram

Rev. 0.3

2015/7

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