SPT7935 Просмотр технического описания (PDF) - Signal Processing Technologies

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Компоненты Описание

производитель

SPT7935

12-BIT, 20 MSPS, 79 mW A/D CONVERTER

Signal Processing Technologies 

PIN ASSIGNMENTS

GND 1

CLK

2

N/C 3

VDD3

4

VDD2

5

VDD2

6

VDD1

7

VDD1

8

VDD1

9

VREF- 10

VREF+

11

33 D10

32 D11 (MSB)

31 GND

30 GND

29 GND

28 GND

27

GND

26 GND

25 GND

24 GND

23 GND

PIN FUNCTIONS

Name

Function

VIN+, VIN–

VREF+, VREF–

CLK

VCM

Bias 1

Bias 2

D0 – D11

GND

VDD1

VDD2

VDD3

N/C

Analog Inputs

External Reference Inputs

Input Clock

Common Mode Output Voltage

(1.65 V typ)

Bias Current (90 µA typ)

Bias Current (9.5 µA typ)

Digital Outputs (D0 = LSB)

Analog Ground

Analog Power Supply

Digital Power Supply

Digital Output Power Supply

No Connect Pins. Recommended to

connect to analog ground.

ORDERING INFORMATION

PART NUMBER

SPT7935SIT

TEMPERATURE RANGE

–40 to +85 °C

PACKAGE TYPE

44L TQFP

Signal Processing Technologies, Inc. reserves the right to change products and specifications without notice. Permission is hereby expressly

granted to copy this literature for informational purposes only. Copying this material for any other use is strictly prohibited.

WARNING – LIFE SUPPORT APPLICATIONS POLICY – SPT products should not be used within Life Support Systems without the specific

written consent of SPT. A Life Support System is a product or system intended to support or sustain life which, if it fails, can be reasonably

expected to result in significant personal injury or death.

Signal Processing Technologies believes that ultrasonic cleaning of its products may damage the wire bonding, leading to device

failure. It is therefore not recommended, and exposure of a device to such a process will void the product warranty.

SPT

8

SPT7935

7/12/00

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