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Production Data

ADS5541

SBAS307C – MAY 2004 – REVISED FEBRUARY 2007

PIN CONFIGURATION (continued)

TERMINAL

NO. OF

NAME

NO.

PINS

I/O

DESCRIPTION

5, 7, 9, 15, 22, 24, 26, 28, 33, 34, 37, 39

12

I

Analog power supply

6, 8, 12–14, 16, 18, 21, 23, 25, 27, 32,

14

I

Analog ground (PowerPAD must be connected to analog ground).

36, 38

49, 58

2

I

Output driver power supply

1, 42, 48, 50, 57, 59

6

I

Output driver ground

INP

19

1

I

Differential analog input (positive)

INM

20

1

I

Differential analog input (negative)

Reference voltage (positive); 1

µF capacitor in series with a 1Ω

REFP

29

1

O

resistor to GND.

Reference voltage (negative); 1

µF capacitor in series with a 1Ω

REFM

30

1

O

resistor to GND.

IREF

31

1

I

Current set; 56k

Ω resistor to GND; do not connect capacitors.

CM

17

1

O

Common-mode output voltage

RESET

35

1

I

Reset (active high); Internal 200k

Ω resistor to AV

(2)

OE

41

1

I

DFS

40

1

I

CLKP

10

1

I

Data converter differential input clock (positive)

CLKM

11

1

I

Data converter differential input clock (negative)

SEN

4

1

I

SDATA

3

1

I

SCLK

2

1

I

D0 (LSB)–D13 (MSB)

44–47, 51–56, 60–63

12

O

Parallel data output

OVR

64

1

O

Over-range indicator bit

CLKOUT

43

1

O

CMOS clock out in sync with data

(1)

PowerPAD is connected to analog ground.

(2)

If RESET pin is unused, it must be tied to AGND and serial interface should be used to reset the device. See the serial programming

interface section for details.

(3)

(4)

Table 3 defines the voltage levels for each mode selectable via the DFS pin.

11

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