AD5757/AD5737

Preliminary Technical Data

Rev. PrD | Page 12 of 31

Pin No. Mnemonic

Description

53

Negative Analog Supply Pin.

54

Current Output Pin for DAC Channel D.

55

N/C

No Connection. Do not connect to this pin.

56

Supply for channel D’s current output stage (See Figure 14). To use the DC-DC feature of the device,

connect as shown in Figure 1.

57

DC-DC Compensation Capacitor. Connect a 10 nF capacitor from this pin to ground. Used to regulate the

feedback loop of channel D’s DC-DC converter.

58

IGATED

Optional connection for external pass transistor. Not required when using DC-DC. Should be left unconnected.

59

CHARTD

Hart Input Connection for DAC Channel D

60

N/C

No Connection. Do not connect to this pin.

61

REFIN

External Reference Voltage Input.

62

REFOUT

Internal Reference Voltage Output.

63

An external, precision, low drift 15 kΩ current setting resistor can be connected to this pin to improve the

64

An external, precision, low drift 15 kΩ current setting resistor can be connected to this pin to improve the

Exposed PADDLE

CONNECTED TO AVss SUPPLY