AD9050 View Datasheet(PDF) - Analog Devices

Part Name

Description

View to exact match

AD9050

10-Bit, 40 MSPS/60 MSPS A/D Converter

Analog Devices 

AD9050

Analog Input

3.813

3.300

2.787

Pin No

1, 7, 12, 21, 23

2, 8, 11

3

4

5

6

9

10

13

14

15

16–19

20, 22

24–27

28

Table I. AD9050 Digital Coding (Single Ended Input AIN, AINB Bypassed to GND)

Voltage Level

OR

(Out of Range)

Digital Output

MSB . . . LSB

Positive Full Scale + 1 LSB

1

Midscale

0

Negative Full Scale – 1 LSB

1

1111111111

0111111111

0000000000

Name

GND

VD

VREFOUT

VREFIN

COMP

REFBP

AINB

AIN

ENCODE

OR

D9 (MSB)

D8–D5

VDD

D4–D1

D0 (LSB)

PIN FUNCTION DESCRIPTIONS

Function

Ground.

Analog +5 V ± 5% power supply.

Internal bandgap voltage reference (nominally +2.5 V).

Input to reference amplifier. Voltage reference for ADC is connected here.

Internal compensation pin, 0.1 µF bypass connected here to VD (+5 V).

External connection for (0.1 µF) reference bypass capacitor.

Complementary analog input pin (Analog input bar).

Analog input pin.

Encode clock input to ADC. Internal T/H is placed in hold mode (ADC is encoding)

on rising edge of encode signal.

Out of range signal. Logic “0” when analog input is in nominal range. Logic “1” when

analog input is out of nominal range.

Most significant bit of ADC output.

Digital output bits of ADC.

Digital output power supply (only used by digital outputs).

Digital output bits of ADC.

Least significant bit of ADC output.

PIN CONFIGURATION

GND 1

28 D0 (LSB)

VD 2

27 D1

VREFOUT 3

VREFIN 4

COMP 5

26 D2

25 D3

24 D4

REFBP 6

23 GND

GND 7 AD9050 22 VDD

TOP VIEW

VD 8 (Not to Scale) 21 GND

AINB 9

20 VDD

AIN 10

19 D5

VD 11

GND 12

18 D6

17 D7

ENCODE 13

16 D8

OR 14

15 D9 (MSB)

CAUTION

ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily

accumulate on the human body and test equipment and can discharge without detection.

Although the AD9050 features proprietary ESD protection circuitry, permanent damage may

occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD

precautions are recommended to avoid performance degradation or loss of functionality.

WARNING!

ESD SENSITIVE DEVICE

–4–

REV. B

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