AK9256ANK

[AK9255A/56A] AK9255A/56A Dual 16/14-Bit 0.54MSPS ZDS-NS A/D Converter 1. General Description The AK9255A/56A are 16/14-bit 0.54MSPS ZDS-NS (* 1) A/D converters. They have noise suppression function and are capable of improving the system accuracy. The AK9255A/56A are available in a small package, saving space on the printed circuit 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 AK9255A 14-bit, 0.62 MSPS AK9256A Differential Input / Pseudo Differential Input Noise Suppression Function 16bit No Missing Code INL: ±3.0 LSB(Typ.) AK9255A 14bit No Missing Code INL: ±1.0 LSB(Typ.) AK9256A S/N 86 dBFS(Typ.) AK9255A (NS Setting1) 90 dBFS(Typ.) AK9255A (NS Setting4) 82 dBFS(Typ.) AK9256A (NS Setting1) 85 dBFS(Typ.) AK9256A (NS Setting4) Power Dissipation: VDD : 26 mA (Typ.) DRVDD : 0.3 mA (Typ.) (fs= 0.54MSPS, VDD= 3.3 V, DRVDD= 3.3 V, NS Setting1) Power Supply: VDD : 3.0 ~ 3.6 V DRVDD : 3.0 ~ 3.6 V Operating Temperature Range: -40 ~ 105 ºC Package: Small 16-pin QFN (3mm x 3mm, 0.5mm pitch) E-00 2018/3 - 1 - [AK9255A/56A] 3. Block Diagram Figure 1. Block Diagram E-00 2018/3 - 2 - [AK9255A/56A] 4. AIN1N AIN1P VDD VSS 15 14 13 E-00 12 SDO0 11 SDO1 10 SCLK 9 CSN PENIRQN 4 8 VREF0P Top View TEST 3 2 7 VREF0N AK9255A AK9256A DRVDD 2 6 VREF1N AIN0P 1 5 VREF1P 16 Pin Configulations AIN0N ■ Pin Configulations 2018/3 - 3 - [AK9255A/56A] 5. Outline Dimensions 9 12 0.35 0.07 ■ Package 8 1.80 B (0.25) 3.00 0.07 1.80 16 A 1 4 3.00 0.07 0.25 0.05 0.05 M C A B 0.50 (0.20) C 0.25 0.05 The detail of A [A部詳細図] 0.00~0.05 0.05MAX 0.70 0.75MAX 0.05 C A A部 C0.30 Note: * 2. The exposed pad on the bottom surface of the package must be open or connected to the ground. In the case that the PCB wiring density is more than 200% AKM recommends connecting the exposed pad to the ground. E-00 2018/3 - 4 - [AK9255A/56A] Thank you for your access to AKM product information. More detail product information is available, please contact our sales office or authorized distributors. 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. 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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. E-00 2018/3 - 5 -