MAX1346BETX

更新时间： 2024-11-14 04:42:07

品牌	Logo	应用领域
美信 - MAXIM		传感器温度传感器先进先出芯片
页数	文件大小	规格书
39页	389K
描述
12-Bit, Multichannel ADCs/DACs with FIFO, Temperature Sensing, and GPIO Ports

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MAX1346BETX 数据手册

19-3332; Rev 3; 3/08

12-Bit, Multichannel ADCs/DACs with FIFO,

Temperature Sensing, and GPIO Ports

026/MAX1348

General Description

Features

♦ 12-Bit, 225ksps ADC

The MAX1340/MAX1342/MAX1346/MAX1348 integrate a

multichannel, 12-bit, analog-to-digital converter (ADC)

and a quad, 12-bit, digital-to-analog converter (DAC) in a

single IC. The devices also include a temperature sensor

and configurable general-purpose I/O ports (GPIOs) with

a 25MHz SPI™-/QSPI™-/MICROWIRE™-compatible seri-

al interface. The ADC is available in a 4 or an 8 input-

channel version. The four DAC outputs settle within 2.0µs,

and the ADC has a 225ksps conversion rate.

Analog Multiplexer with True-Differential

Track/Hold (T/H)

8 Single-Ended Channels or 4 Differential

Channels (Unipolar or Bipolar)

(MAX1340/MAX1342)

4 Single-Ended Channels or 2 Differential

Channels (Unipolar or Bipolar)

(MAX1346/MAX1348)

Excellent Accuracy: 0ꢀ5 ꢁSB ꢂIꢁ, 0ꢀ5 ꢁSB DIꢁ

All devices include an internal reference (4.096V) provid-

ing a well-regulated, low-noise reference for both the

ADC and DAC. Programmable reference modes for the

ADC and DAC allow the use of an internal reference, an

external reference, or a combination of both. Features

such as an internal 1ꢀC accurate temperature sensor,

FIFO, scan modes, programmable internal or external

clock modes, data averaging, and AutoShutdown™ allow

users to minimize both power consumption and proces-

sor requirements. The low glitch energy (4nV•s) and low

digital feedthrough (0.5nV•s) of the integrated quad

DACs make these devices ideal for digital control of fast-

response closed-loop systems.

♦ 12-Bit, Quad, 2µs Settling DAC

Ultra-ꢁow Glitch Energy (4nV•s)

Power-Up Options from Zero Scale or Full Scale

Excellent Accuracy: 0ꢀ5 ꢁSB ꢂIꢁ

♦ ꢂnternal Reference or External Single-Ended/

Differential Reference

ꢂnternal Reference Voltage (4ꢀ096V)

♦ ꢂnternal 1ꢃC Accurate Temperature Sensor

♦ On-Chip FꢂFO Capable of Storing 16 ADC

Conversion Results and One Temperature Result

♦ On-Chip Channel-Scan Mode and ꢂnternal

Data-Averaging Features

The devices are guaranteed to operate with a supply

voltage from +4.75V to +5.25V The devices consume

2.5mA at 225ksps throughput, only 22µA at 1ksps

throughput, and under 0.2µA in the shutdown mode. The

MAX1342/MAX1348 offer four GPIOs that can be config-

ured as inputs or outputs.

♦ Analog Single-Supply Operation

+4ꢀ75V to +5ꢀ25V

♦ Digital Supply: 2ꢀ7V to AV

♦ 25MHz, SPꢂ/QSPꢂ/MꢂCROWꢂRE Serial ꢂnterface

♦ AutoShutdown Between Conversions

♦ ꢁow-Power ADC

2ꢀ5mA at 225ksps

22µA at 1ksps

The MAX1340/MAX1342/MAX1346/MAX1348 are avail-

able in 36-pin thin QFN packages. All devices are speci-

fied over the -40ꢀC to +85ꢀC temperature range.

0ꢀ2µA at Shutdown

Applications

Closed-Loop Controls for Optical Components

and Base Stations

♦ ꢁow-Power DAC: 1ꢀ5mA

♦ Evaluation Kit Available (Order MAX1258EVKꢂT)

SPI and QSPI are trademarks of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor Corp.

AutoShutdown is a trademark of Maxim Integrated Products, Inc.

System Supervision and Control

Data-Acquisition Systems

Pin Configurations appear at end of data sheetꢀ

Ordering Information/Selector Guide

REF

VOꢁTAGE

(V)

AIAꢁOG

SUPPꢁY

VOꢁTAGE (V)

RESOꢁUTꢂOI

BꢂTS**

ADC

DAC

PART

TEMP RAIGE

PꢂI-PACKAGE

GPꢂOs

CHAIIEꢁS CHAIIEꢁS

MAX1340BETX -40°C to +85°C 36 Thin QFN-EP*

MAX1342BETX -40°C to +85°C 36 Thin QFN-EP*

MAX1346BETX -40°C to +85°C 36 Thin QFN-EP*

MAX1348BETX -40°C to +85°C 36 Thin QFN-EP*

*EP = Exposed pad.

4.096

4.75 to 5.25

**Number of resolution bits refers to both DAC and ADC.

________________________________________________________________ Maxim ꢂntegrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at wwwꢀmaxim-icꢀcomꢀ

12 3 4 5 6 7...39

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与MAX1346BETX相关器件

型号	品牌	获取价格	描述	数据表
MAX1346BETX+	MAXIM	获取价格	Analog Circuit, 1 Func, BICMOS, 6 X 6 MM, 0.80 MM HEIGHT, TQFN-36
MAX1346BETX+T	MAXIM	获取价格	暂无描述
MAX1347BETX+	MAXIM	获取价格	Analog Circuit, 1 Func, BICMOS, 6 X 6 MM, 0.80 MM HEIGHT, MO-220-WJJD, TQFN-36
MAX1347BETX+T	MAXIM	获取价格	Analog Circuit, 1 Func, BICMOS, 6 X 6 MM, 0.80 MM HEIGHT, MO-220-WJJD, TQFN-36
MAX1348	MAXIM	获取价格	12-Bit, Multichannel ADCs/DACs with FIFO, Temperature Sensing, and GPIO Ports
MAX1348	ADI	获取价格	12位、多通道ADC/DAC，带有FIFO、温度传感器和GPIO端口
MAX13481E	MAXIM	获取价格	【15kV ESD-Protected USB Transceivers with Ext
MAX13481EETE	MAXIM	获取价格	【15kV ESD-Protected USB Transceivers with Ext
MAX13481EETE+	MAXIM	获取价格	Interface Circuit, BICMOS, 3 X 3 MM, 0.80 MM HEIGHT, MO-220, QFN-16
MAX13481EETE+T	MAXIM	获取价格	Interface Circuit, BICMOS, 3 X 3 MM, 0.80 MM HEIGHT, MO-220, QFN-16

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