Datasheet > MAX11322

MAX11322

更新时间： 2024-12-02 14:57:39

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亚德诺 - ADI		/
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描述
1Msps、10/12位、4/8/16通道ADC，提供外部信号调理复用输入

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MAX11322 数据手册

EVALUATION KIT AVAILABLE

MAX11321–MAX11328

1Msps, 10-/12-Bit, 4-/8-/16-Channel ADCs with

Post-Mux External Signal Conditioning Access

General Description

Benefits and Features

The MAX11321–MAX11328 are 12-/10-bit with external

reference and 500kHz, full-linear-bandwidth, high-speed,

low-power, serial-output successive approximation reg-

ister (SAR) analog-to-digital converters (ADCs). The

MAX11321–MAX11328 provide external access to the

output of the integrated mux and ADC input, to simplify

conditioning. The MAX11321–MAX11328 include both

internal and external clock modes. These devices feature

scan mode in both internal and external clock modes. The

internal clock mode features internal averaging to increase

SNR. The external clock mode features the SampleSetK

technology, a user-programmable analog input channel

sequencer. The SampleSet approach provides greater

sequencing flexibility for multichannel applications while

alleviating significant microcontroller or DSP (controlling

unit) communication overhead.

S Highly Integrated Precision ADC Saves Space

While Retaining Flexibility

ꢀ±± ꢀSꢁ IꢂꢀL ±± ꢀSꢁ DꢂꢀL ꢂo ꢃissing Codes

ꢀ70dꢁ SIꢂAD at ±00kHz

ꢀ±ꢃsps Conversion Rate with ꢂo Pipeline Delay

Analog ꢃultiplexer with True Differential Track/Hold:

Any Combination of Single-EndedL Differential and

Pseudo-Differential Input Pin Pairs Allowed

ꢀ±6-/8-/4-Channel Single-Ended

ꢀ±2-/8-/4-Channel Fully-Differential Pairs

ꢀ±5-/8-/4-Channel Pseudo-Differential Relative to

a Common Input

S Two Software-Selectable ꢁipolar Input Ranges:

±ꢄ +/2L ±ꢄ

REF

S External Differential Reference (±ꢄ to ꢄ

S 32-PinL 5mm x 5mm TQFꢂ Package

)

External pins provide access to the output of the

multiplexer and ADC inputs to simplify multichannel sig-

nal conditioning. The internal clock mode features an inte-

grated FIFO allowing data to be sampled at high speeds

and then held for readout at any time or at a lower clock

rate. Internal averaging is also supported in internal clock

mode improving SNR for noisy input signals. The devices

feature analog input channels that can be configured to

be single-ended inputs, fully differential pairs, or pseudo-

differential inputs with respect to one common input. The

MAX11321–MAX11328 operate from a 2.35V to 3.6V sup-

ply and consume only 5.4mW at 1Msps.

S SampleSet™ Technology ꢁrings Extreme

Flexibility to Program Input Configurations Per

Channel and Sampling Sequence to Optimize

Interface to the ꢃicrocontroller

ꢀUser-Defined Channel Sequence with ꢃaximum

ꢀength of 256

ꢀScan ꢃodesL Internal AveragingL and Internal Clock

ꢀ±6-Entry First-In/First-Out (FIFO)

S Post-ꢃux Signal Access Allows for External

Signal Conditioning ꢁetween the ꢃux and the

ADC Even for Differential Signals

The MAX11321–MAX11328 include AutoShutdownK,

fast wake-up, and a high-speed 3-wire serial interface.

The devices feature full power-down mode for optimal

power management. The 48MHz, 3-wire serial interface

ꢀExternally Accessible ꢃultiplex Output and ADC Input

S ꢀow-Power Consumption Extends ꢁattery ꢀife for

Portable Applications

directly connects to SPI, QSPIK, and MICROWIRE

ꢀ±.5ꢄ to 3.6ꢄ Digital I/O Supply ꢄoltage

ꢀ2.35ꢄ to 3.6ꢄ Supply ꢄoltage

ꢀ5.4mW at ±ꢃsps with 3ꢄ Supplies

ꢀ2μA Full-Shutdown Current

devices without external logic.

Excellent dynamic performance, low voltage, low power,

ease of use, and small package size make these convert-

ers ideal for portable battery-powered data-acquisition

applications, and for other applications that demand low

power consumption and small space.

S Easy to Interface with ꢃost ꢃicrocontrollers

ꢀ±6ꢃHzL 3-Wire SPI-/QSPI-/ꢃICROWIRE-/DSP-

Compatible Serial Interface

The MAX11321–MAX11328 are available in 32-pin, 5mm

x 5mm, TQFN packages and operate over the -40NC to

+125NC temperature range.

Applications

High-Speed Data

Medical Instrumentation

Acquisition Systems

SampleSet and AutoShutdown are trademarks of Maxim

Integrated Products, Inc.

QSPI is a trademark of Motorola, Inc.

MICROWIRE is a registered trademark of National Semiconductor

Corp.

Battery-Powered

Instruments

High-Speed Closed-Loop

Systems

Portable Systems

Industrial Control Systems

Ordering Information appears at end of data sheet.

For pricing, delivery, and ordering information, please contact Maxim Direct

at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.

19-6467; Rev 1; 12/14

12 3 4 5 6 7...37

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与MAX11322相关器件

型号	品牌	获取价格	描述	数据表
MAX11322ATJ+	MAXIM	获取价格	ADC, Successive Approximation, 12-Bit, 1 Func, 4 Channel, Serial Access, 5 X 5 MM, ROHS CO
MAX11323	MAXIM	获取价格	1Msps, 10-/12-Bit, 4-/8-/16-Channel ADCs with Post-Mux External Signal Conditioning Access
MAX11324	MAXIM	获取价格	1Msps, 10-/12-Bit, 4-/8-/16-Channel ADCs with Post-Mux External Signal Conditioning Access
MAX11324ATJ+	MAXIM	获取价格	ADC, Successive Approximation, 10-Bit, 1 Func, 8 Channel, Serial Access, 5 X 5 MM, ROHS CO
MAX11325	MAXIM	获取价格	1Msps, 10-/12-Bit, 4-/8-/16-Channel ADCs with Post-Mux External Signal Conditioning Access
MAX11325	ADI	获取价格	1Msps、10/12位、4/8/16通道ADC，提供外部信号调理复用输入
MAX11325ATJ+	MAXIM	获取价格	ADC, Successive Approximation, 12-Bit, 1 Func, 8 Channel, Serial Access, 5 X 5 MM, ROHS CO
MAX11325ATJ+T	MAXIM	获取价格	ADC, Successive Approximation, 12-Bit, 1 Func, 8 Channel, Serial Access, 5 X 5 MM, ROHS CO
MAX11326	MAXIM	获取价格	1Msps, 10-/12-Bit, 4-/8-/16-Channel ADCs with Post-Mux External Signal Conditioning Access
MAX11327	MAXIM	获取价格	1Msps, 10-/12-Bit, 4-/8-/16-Channel ADCs with Post-Mux External Signal Conditioning Access

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