MX7672UQ05(2012) 查看數據表（PDF） - Maxim Integrated

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MX7672UQ05
(Rev.:2012)

High-Speed 12-Bit ADC With External Reference Input Part

Maxim Integrated 

MX7672

High-Speed 12-Bit ADC With External

Reference Input Part

General Description

The MX7672 is a 12-bit, high-speed, BiCMOS, analog-to-

digital converter (ADC) that performs conversions in as

little as 3µs while consuming only 110mW of power. The

MX7672 is a plug-in replacement for AD7672.

The MX7672 requires an external -5V reference. A buff-

ered reference input minimizes reference current require-

ments and allows a single reference to drive several

ADCs. External reference specifications can be chosen

to suit the accuracy of the application. The ADC clock can

be driven from either a crystal or an external clock source,

such as a microprocessor (µP) clock.

Average input range is pin-selectable for 0 to +5V, 0 to

+10V, or ±5V, making the ADC ideal for data-acquisition

and analog input/output cards. A high-speed digital inter-

face (125ns data-access time) with three-state data out-

puts is compatible with most µPs.

Applications

●● Telecommunications

●● Sonar and Radar Signal Processing

●● High-Speed Data-Acquisition Systems

●● Personal Computer I/O Boards

Functional Diagram

Features

●● Plug-In Replacement for AD7672

●● 12-Bit Resolution and Accuracy

●● Fast Conversion Time

• MX7672_ _03 - 3µs

• MX7672_ _05 - 5µs

• MX7672_ _10 - 10µs

●● Operates with +5V and -12V Supplies

●● Buffered Reference Input

●● Low 110mW Power Consumption

●● Choice of +5V, +10V, or ±5V Input Ranges

●● Fast 125ns Bus-Access Time

Ordering Information appears at end of data sheet.

Pin Configurations

TOP VIEW

+

1 AIN1

AIN2 24

2 VREF

VDD 23

3 AGND

VSS 22

4 D11 (MSB) BUSY 21

5 D10 MX7672 CS 20

6 D9

RD 19

7 D8

CLKOUT 18

8 D7

CLKIN 17

9 D6

D0 16

10 D5

D1 15

11 D4

D2 14

12 DGND

D3 13

PDIP

Pin Configurations continued on last page

19-3126; Rev 1; 1/12

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