4-/6-/8-Channel, 16-/14-Bit,

Simultaneous-Sampling ADCs

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11

Pin Description (continued)

PIN

MAX11047

(TQFN-EP)

MAX11048

(TQFN-EP)

MAX11049

(TQFN-EP)

NAME

FUNCTION

37

34

32

CH2

Channel 2 Analog Input

39

37

34

CH3

Channel 3 Analog Input

—

39

37

CH4

Channel 4 Analog Input

—

42

39

CH5

Channel 5 Analog Input

—

—

42

CH6

Channel 6 Analog Input

—

—

45

CH7

Channel 7 Analog Input

52

52

52

WR

Active-Low Write Input. Drive WR low to write to the ADC. Configuration

registers are loaded on the rising edge of WR.

53

53

53

CS

Active Low-Chip Select Input. Drive CS low when reading from or writing to

the ADC.

54

54

54

RD

Active-Low Read Input. Drive RD low to read from the ADC. Each rising edge

of RD advances the channel output on the data bus.

55

55

55

DB15

16-Bit Parallel Data Bus Digital Output Bit 15

56

56

56

DB14

16-Bit Parallel Data Bus Digital Output Bit 14

———

EP

Exposed Pad. Internally connected to AGND. Connect to a large ground

plane to maximize thermal performance. Not intended as an electrical

connection point.

PIN

MAX11047

(TQFP-EP)

MAX11048

(TQFP-EP)

MAX11049

(TQFP-EP)

NAME

FUNCTION

1

1

1

DB14

16-Bit Parallel Data Bus Digital Output Bit 14

2

2

2

DB13

16-Bit Parallel Data Bus Digital Output Bit 13

3

3

3

DB12

16-Bit Parallel Data Bus Digital Output Bit 12

4

4

4

DB11

16-Bit Parallel Data Bus Digital Output Bit 11

5

5

5

DB10

16-Bit Parallel Data Bus Digital Output Bit 10

6

6

6

DB9

16-Bit Parallel Data Bus Digital Output Bit 9

7

7

7

DB8

16-Bit Parallel Data Bus Digital Output Bit 8

8, 22, 59

8, 22, 59

8, 22, 59

DGND

Digital Ground

9, 21, 60

9, 21, 60

9, 21, 60

Digital Supply. Bypass to DGND with a 0.µF capacitor at each DVDD input.

10

10

10

DB7

16-Bit Parallel Data Bus Digital Output Bit 7

11

11

11

DB6

16-Bit Parallel Data Bus Digital Output Bit 6

12

12

12

DB5

16-Bit Parallel Data Bus Digital Output Bit 5

13

13

13

DB4

16-Bit Parallel Data Bus Digital Output Bit 4

14

14

14

DB3/CR3

16-Bit Parallel Data Bus Digital Output Bit 3/Configuration Register Input Bit 3

15

15

15

DB2/CR2

16-Bit Parallel Data Bus Digital Output Bit 2/Configuration Register Input Bit 2

16

16

16

DB1/CR1

16-Bit Parallel Data Bus Digital Output Bit 1/Configuration Register Input Bit 1

17

17

17

DB0/CR0

16-Bit Parallel Data Bus Digital Output Bit 0/Configuration Register Input Bit 0