Datasheet > AS1544

AS1544

更新时间： 2024-02-14 12:13:19

品牌	Logo	应用领域
艾迈斯 - AMSCO		/
页数	文件大小	规格书
29页	1031K
描述
8/4-Channel, 1 Msps, 12-Bit ADC with Sequencer

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AS1544 技术参数

生命周期：	Obsolete	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.84
Base Number Matches：	1

AS1544 数据手册

Data Sheet

AS1543/44

8/4-Channel, 1 Msps, 12-Bit ADC with Sequencer

1 General Description

2 Key Features

ꢀ

Single Supply Operation with VDRIVE Function:

2.7 to 5.25V

The AS1543/44 is a 12-bit high-speed, low-power, 8/4-

channel, successive-approximation ADC that operates

from a single 2.7 to 5.25V supply. The device features

high throughput rates (1Msps) and a low-noise, wide-

bandwidth track-and-hold amplifier that can handle input

frequencies in excess of 1 MHz.

ꢀ

Fast Throughput Rate: 1 Msps

Sequencer & Channel Counter

Software-Configurable Analog Input Types:

- 8/4-Channel Single-Ended

- 4/2-Channel Fully-Differential

The AS1543 features 8 single-ended or 4 fully differen-

tial analog inputs while the AS1544 offers 4 single-

ended or 2 fully differential analog inputs. Both include a

channel sequencer to allow a programmed selection of

channels to be converted sequentially. The conversion

time is determined by the SCLK frequency (also used as

the master clock to control the conversion).

ꢀ

Software-Configurable Input Range

Low Power Consumption at Max Throughput Rates:

- 10.1mW @ 1Msps (3.6V Supply)

- 18.4mW @ 1Msps (5.25V Supply)

The conversion process and data acquisition are con-

trolled using a chip select pin and a serial clock signal,

allowing the device to easily interface with microproces-

sors or DSPs. The input signal is sampled on the falling

edge of CSN and conversion is also initiated at this

point. There are no pipeline delays associated with the

device.

ꢀ

Shutdown Mode Current: 0.5µA

Flexible Power/Serial Clock Speed Management

Wide Input Bandwidth: 71dB SNR @ 50 kHz Input

Frequency

ꢀ

No Pipeline Delays

The AS1543/44 uses advanced design techniques to

achieve very low power dissipation at high throughput

rates. At maximum throughput rates, the AS1543/44

consumes just 2.8mA (@3.6V), and 3.5mA (@5.25V).

High Speed SPI/QSPI/Microwire/DSP Interface

TQFN(4x4)-20 Package

By using internal control register, single-ended or fully-

differential conversion mode with different input ranges

can be used with either straight binary or twos comple-

ment output coding.

3 Applications

The devices are ideal for remote sensors, data-acquisi-

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

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

low power-consumption requirements.

The device is available in a TQFN(4x4)-20 pin package.

Figure 1. Typical Application

VDD

REFIN

DGND

12-Bit

ADC

Track/

Hold

Multiplexer

Sequencer

VIN0:7

AGND

AS1543

SCLK

DOUT

DIN

Control

Logic

GND

CSN

VDRIVE

www.austriamicrosystems.com

Revision 1.00

1 - 29

12 3 4 5 6 7...29

中文翻译

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与AS1544相关器件

型号	品牌	获取价格	描述	数据表
AS1544-BTST	AMSCO	获取价格	8/4-Channel, 1 Msps, 12-Bit ADC with Sequencer
AS1545	AMSCO	获取价格	Dual, 12-Bit, 1MSPS, SAR ADC
AS1545_1	AMSCO	获取价格	Dual, 12-Bit, 1MSPS, SAR ADC
AS1545-BQFT	AMSCO	获取价格	Dual, 12-Bit, 1MSPS, SAR ADC
AS156-73	SKYWORKS	获取价格	GaAs IC SPST Switch Single Positive Control 0.5?2.5 GHz
AS156-73LF	SKYWORKS	获取价格	GaAs IC SPST Switch Single Positive Control 0.5-2.5 GHz
AS157-73	ETC	获取价格	SPDT RF Reflective Switch
AS1580	ETC	获取价格	Positive Fixed Voltage Regulator
AS1580T	ETC	获取价格	Analog IC
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