Dual 10-Bit, 105Msps, +3.3V, Low-Power ADC

with Internal Reference and Parallel Outputs

_______________________________________________________________________________________

9

Typical Operating Characteristics (continued)

unless otherwise noted.)

-15

-40

60

35

10

85

INTERNAL REFERENCE VOLTAGE

vs. TEMPERATURE

TEMPERATURE (

°C)

2.025

2.035

2.015

2.055

2.065

2.045

N

N-1

N-2

N+2

N+1

OUTPUT NOISE HISTOGRAM (DC INPUT)

DIGITAL OUTPUT NOISE

1000

2000

3000

4000

0

6000

7000

5000

64676

607

00

252

Pin Description

PIN

NAME

FUNCTION

1

COM

Common-Mode Voltage Input/Output. Bypass to GND with a

≥ 0.1µF capacitor.

2, 6, 11, 14, 15

Analog Supply Voltage. Bypass to GND with a capacitor combination of 2.2µF in parallel with

0.1µF.

3, 7, 10, 13, 16

GND

Analog Ground

4

INA+

Channel A Positive Analog Input. For single-ended operation, connect signal source to INA+.

5

INA-

Channel A Negative Analog Input. For single-ended operation, connect INA- to COM.

8

INB-

Channel B Negative Analog Input. For single-ended operation, connect INB- to COM.

9

INB+

Channel B Positive Analog Input. For single-ended operation, connect signal source to INB+.

12

CLK

Converter Clock Input

17

T/B

T/B selects the ADC digital output format.

High: Two’s complement.

Low: Straight offset binary.

18

SLEEP

Sleep Mode Input.

High: Deactivates the two ADCs, but leaves the reference bias circuit active.

Low: Normal operation.

19

PD

Power-Down Input.

High: Power-down mode

Low: Normal operation

20

OE

Output Enable Input.

High: Digital outputs disabled

Low: Digital outputs enabled