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Datasheet> 器件分类 > 模拟混合信号IC> 转换器> AS1534-T

AS1534-T: 产品描述IC 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PQFP44, PLASTIC, QFP-44, Analog to Digital Converter; 产品类别模拟混合信号IC 转换器; 文件大小337KB，共32页; 制造商AMS; 官网地址https://ams.com/zh

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AS1534-T概述

IC 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PQFP44, PLASTIC, QFP-44, Analog to Digital Converter

AS1534-T规格参数

参数名称	属性值
厂商名称	AMS
零件包装代码	QFP
包装说明	QFP,
针数	44
Reach Compliance Code	unknown
ECCN代码	EAR99
最大模拟输入电压	2.75 V
最小模拟输入电压	-2.75 V
最长转换时间	4.5 µs
转换器类型	ADC, SUCCESSIVE APPROXIMATION
JESD-30 代码	S-PQFP-G44
长度	10 mm
最大线性误差 (EL)	0.0244%
模拟输入通道数量	8
位数	12
功能数量	1
端子数量	44
最高工作温度	85 °C
最低工作温度	-40 °C
输出位码	BINARY, 2\'S COMPLEMENT BINARY
输出格式	PARALLEL, WORD
封装主体材料	PLASTIC/EPOXY
封装代码	QFP
封装形状	SQUARE
封装形式	FLATPACK
认证状态	Not Qualified
采样速率	0.2 MHz
采样并保持/跟踪并保持	TRACK
座面最大高度	2.45 mm
标称供电电压	5 V
表面贴装	YES
温度等级	INDUSTRIAL
端子形式	GULL WING
端子节距	0.8 mm
端子位置	QUAD
宽度	10 mm

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a us t ria

m i c r o

s y s t e m s

AS1534

1 2 - b i t , 8 - C h a n n e l , L o w - P o w e r, 2 0 0 k s ps A / D C o n v e r t e r

D a ta S he e t

1 General Description

The AS1534 is a low-power, 8-channel, 200ksps, 12-bit

analog-to-digital (A/D) converter specifically designed to

operate with single-supply devices. Superior AC charac-

teristics, very low power-consumption, and highly-reli-

able packaging make the AS1534 perfect for battery-

powered remote-sensor and data-acquisition devices.

The successive-approximation register (SAR), high-

speed sampling, high-bandwidth track/hold circuitry, and

configurable inputs combine to make the AS1534 highly-

flexible and configurable.

Internal registers are used to control the AS1534 fea-

tures, report on the status of the device, and hold the

A/D conversion results.

The device requires very low supply-current at the

200ksps max sampling speed, and features flexible

power-down modes to reduce power consumption at

slower throughput rate.

The AS1534 operates from a single +3 to +3.6V supply

and contains an internal 2.5V reference and integrated

reference buffer. The device also supports an external

reference.

Data accesses are made via the fast 8-/16-bit parallel

interface in support of a wide range of microprocessors.

The AS1534 is available in a 44-pin PQFP package.

2 Key Features

Sampling Rate: 200ksps

8- and 16-Bit Parallel Interface

Analog Input Types:

- 8-Channel Single-Ended

- 4-Channel Pseudo-Differential

- 4-Channel Fully-Differential

Software-Configurable Unipolar or Bipolar Inputs

Internal +2.5V Reference

External Reference: 1.2V to V

Low-Power Operation:

- 7.5mW (V

= 3 V)

- 1.5mW (Using Automatic Power-Down after Con-

version; V

= 3 V, 10ksps)

Single-Supply Operation: +3 to +3.6V

44-pin PQFP Package

3 Applications

The device is ideal for remote sensors, data-acquisition

and data-logging devices, pen-digitizers, process con-

trol, or any other space-limited A/D application with low

power-consumption requirements.

Figure 1. Block Diagram

8:15

AIN0:AIN7

AGND

REFIN/

REFOUT

REF1

I/P

MUX

Track/

Hold

AS1534

DGND

CLKIN

150kΩ

+2.5V

REF

Comp-

arator

12-Bit SAR

and A/D

Conversion

Control

Buffer

CONVSTN

BUSY

SLEEPN

Charge

Redistribution

DAC

REF2

Parallel Interface

Controller Register

DB8/HBEN

DB0:DB15

RDN

CSN

WRN

WBN

www.austriamicrosystems.com

Revision 1.03

1 - 32

AS1534

Data Sheet

austriam

i c r o

systems

Contents

General Description ................................................................................................................................

Key Features ..........................................................................................................................................

Applications ............................................................................................................................................

Absolute Maximum Ratings ....................................................................................................................

Electrical Characteristics ........................................................................................................................

Timing Characteristics ............................................................................................................................................ 6

6 Typical Operating Characteristics ........................................................................................................... 7

7 Pinout and Packaging ............................................................................................................................. 9

Pin Assignments ..................................................................................................................................................... 9

Pin Descriptions ..................................................................................................................................................... 9

8 Detailed Description ............................................................................................................................. 11

Analog Input ......................................................................................................................................................... 12

Acquisition Time ................................................................................................................................................... 12

Track/Hold ............................................................................................................................................................ 12

Input Ranges ........................................................................................................................................................ 12

Analog-to-Digital Conversion ................................................................................................................................ 14

Internal Registers .................................................................................................................................................

Register Write Operations .............................................................................................................................

Register Read Operations .............................................................................................................................

Control Register ............................................................................................................................................

Status Register ..............................................................................................................................................

Parallel Interface .................................................................................................................................................. 19

Read Operations ........................................................................................................................................... 19

Write Operations ........................................................................................................................................... 20

Power-Down Options ...........................................................................................................................................

Full Power-Up Mode .....................................................................................................................................

Full Power-Down Mode .................................................................................................................................

Full Power-Down Between Conversions Mode .............................................................................................

Partial Power-Down Between Conversions Mode .........................................................................................

Power-Down Between Conversions Using SLEEPN ....................................................................................

Power-Up ............................................................................................................................................................. 22

Using an External Reference ........................................................................................................................ 22

Using the Internal Reference ........................................................................................................................ 23

9 Application Information ......................................................................................................................... 24

Internal/External Reference .................................................................................................................................. 24

Microprocessor and DSP Interfacing ....................................................................................................................

TMS32020, TMS320C25, and TMS320C5x Interface ..................................................................................

TMS320C30 Interface ...................................................................................................................................

DSP5600x Interface ......................................................................................................................................

ADSP-21xx Interface .....................................................................................................................................

8051 Interface ...............................................................................................................................................

Transfer Functions ................................................................................................................................................ 28

DC and AC Application Notes .............................................................................................................................. 29

Layout Considerations .......................................................................................................................................... 29

10 Package Drawings and Markings ....................................................................................................... 30

11 Ordering Information ........................................................................................................................... 31

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Revision 1.03

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AS1534-T

AS1534-T概述

AS1534-T规格参数

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