Datasheet > AK9256A

AK9256A

更新时间： 2024-11-13 01:10:35

品牌	Logo	应用领域
AKM		/
页数	文件大小	规格书
4页	378K
描述
Dual 16/14-Bit 0.54MSPS ZDS-NS A/D Converter

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中文翻译

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数据手册

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AK9256A 数据手册

[AK9255A/56A]

= Preliminary =

AK9255A/56A

Dual 16/14-Bit 0.54MSPS ZDS-NS A/D Converter

1. General Description

The AK9255A/56A are 16/14-bit 0.54 MSPS ZDS-NS (* 1) A/D converters. They are ZDS A/D converters

with noise suppression function and capable of improving the system accuracy. The AK9255A/56A are

available in an small package, saving space on the printing board.

Notes:

* 1. ZDS-NS: Zero latency Delta Sigma with Noise Suppression Function

A ZDS-NS 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. A ZDS-NS A/D converter has smaller input capacitance than SARs, reducing the

buffer load of the input stage of the IC. Furthermore, the oversampling process is executed inside of the

IC, and the averaging process is carried out with a built-in digital filter. Therefore, analog input signal

noise can be suppressed, contributing to improving noise characteristics of the system. It also

contributes to high-speed processing of a system that needs a noise averaging.

Application

・Motor Control: Position Measurement Using SinCos Encoders

・Three-Phase Power Controls

・Programmable Logic Controllers

・Power Quality Measurement

・Industrial Automation

2. Features



2ch Simultaneous Sampling ZDS-NS A/D Converter

Resolution, Sampling Rate:

16-bit, 0.54 MSPS

14-bit, 0.62 MSPS

AK9255A

AK9256A



Differential Input / Pseudo Differential Input

Noise Suppression Function

16bit No Missing Code,

14bit No Missing Code,

S/N

INL: ±3.0 LSB(Typ.)

AK9255A

AK9256A

AK9255A (NS Setting1)

AK9255A (NS Setting4)

AK9256A (NS Setting1)

AK9256A (NS Setting4)

INL: ±1.0 LSB(Typ.)

86 dBFS(Typ.)

90 dBFS(Typ.)

82 dBFS(Typ.)

85 dBFS(Typ.)



Power Dissipation:

Power Supply:

VDD

: 26 mA (Typ.)

DRVDD : 1 mA (Typ.)

(fs= 0.54 MSPS, VDD= 3.3 V, DRVDD= 3.3 V, NS Setting1)

VDD : 3.0 ~ 3.6 V

DRVDD : 3.0 ~ 3.6 V



Operating Temperature Range:

Package:

-40 ~ 105 ºC

Small 16-pin QFN (3mm x 3mm, 0.5mm pitch)

Rev 0.5

2017/09

- 1 -

12 3 4

中文翻译

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