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Typical operating characteristics (continued), Pin description – Rainbow Electronics MAX1326 User Manual

Page 9

background image

OUTPUT HISTOGRAM

(DC INPUT)

MAX1316 toc20

DIGITAL OUTPUT CODE

COUNTS

8217

8216

8214 8215

8211 8212 8213

8210

500

1000

1500

2000

2500

3000

3500

4000

4500

0

0

1

0

13

8209

2306

1562

154

341

3815

CONVERSION TIME
vs. TEMPERATURE

MAX1316 toc19

TEMPERATURE (

°C)

CONVERSION TIME (

µ

s)

60

35

10

-15

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

0

-40

85

t

NEXT

t

CONV

INTERNAL CLOCK

CONVERSION TIME

vs. ANALOG SUPPLY VOLTAGE

MAX1316 toc18

ANALOG SUPPLY VOLTAGE (V)

CONVERSION TIME (

µ

s)

5.125

5.000

4.875

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

0

4.750

5.250

t

NEXT

t

CONV

INTERNAL CLOCK

Typical Operating Characteristics (continued)

(AV

DD

= +5V, DV

DD

= +3V, AGND = DGND = 0V, V

REF

= V

REFMS

= +2.5V (external reference), see the Typical Operating Circuits sec-

tion, f

CLK

= 10MHz, 50% duty cycle, INTCLK/EXTCLK = AGND (external clock), SHDN = DGND, T

A

= +25°C, unless otherwise noted.)

MAX1316–MAX1318/MAX1320–MAX1322/MAX1324–MAX1326

8-/4-/2-Channel, 14-Bit, Simultaneous-Sampling ADCs

with ±10V, ±5V, and 0 to +5V Analog Input Ranges

_______________________________________________________________________________________

9

Pin Description

PIN

MAX1316
MAX1320
MAX1324

MAX1317
MAX1321
MAX1325

MAX1318
MAX1322
MAX1326

NAME

FUNCTION

1, 15, 17

1, 15, 17

1, 15, 17

AV

DD

Analog Supply Input. AV

DD

is the power input for the analog section

of the converter. Apply 4.75V to 5.25V to AV

DD

. Bypass AV

DD

to

AGND (pin 14 to pin 15, pin 16 to pin 17, pin 1 to pin 2) with a 0.1µF
capacitor at each AV

DD

input.

2, 3, 14, 16, 23 2, 3, 14, 16, 23 2, 3, 14, 16, 23

AGND

Analog Ground. AGND is the power return for AV

DD

. Connect all

AGNDs together.

4

4

4

CH0

Channel 0 Analog Input

5

5

5

CH1

Channel 1 Analog Input

6

6

6

MSV

Midscale Voltage Bypass. For the MAX1316/MAX1317/MAX1318,
connect a 2.2µF and a 0.1µF capacitor from MSV to AGND. For the
MAX1320/MAX1321/MAX1322/MAX1324/MAX1325/MAX1326,
connect MSV directly to AGND.

7

7

CH2

Channel 2 Analog Input

8

8

CH3

Channel 3 Analog Input

9

CH4

Channel 4 Analog Input