5

LTC1458/LTC1458L

TEMPERATURE (

°C)

–55

–25

5

1458 G06

95

125

4.110

4.105

4.100

4.095

4.090

4.085

4.080

35

65

LTC1458 Full-Scale Voltage vs

Temperature

TEMPERATURE (

°C)

–55

–25

5

1458 G07

95

125

5

4

3

2

1

0

–1

–2

–3

–4

–5

35

65

LTC1458

Offset Voltage vs Temperature

TEMPERATURE (

°C)

–55

–25

5

1458 G05

95

125

950

940

930

920

910

900

890

880

870

860

850

35

65

LTC1458

Supply Current vs Temperature

X1/X2 C, X1/X2 D,X1/X2 A, X1/X2 B (Pins 1, 14, 16, 27):

The Input Pin that Sets the Gain for DAC C/D/A/B. When

grounded the gain will be 2, i.e., output full-scale will be

output full-scale will be equal to REFHI.

Buffered DAC Outputs.

CS/LD (Pin 3): The Serial Interface Enable and Load

Control Input.

REFHI C, REFHI D, REFHI A, REFHI B,(Pins 5, 9, 20, 24):

The Inputs to the DAC Resistor Ladder for DAC C/D/A/B.

GND (Pins 6, 23): Ground.

REFLO C, REFLO D, REFLO A, REFLO B, (Pins 7, 8, 21,

22): The Bottom of the DAC Resistor Ladders for the

DACs. These can be used to offset zero-scale above

ground. REFLO should be connected to ground when no

offset is required.

Becomes Valid on the Rising Edge of the Serial Clock.

CLK (Pin 11): The Serial Interface Clock Input.

quires a 0.1

µF bypass capacitor to ground.

REFOUT (Pin 19): The Output of the Internal Reference.

CLR (Pin 25): The Clear Pin. Clears all DACs to zero-scale

when pulled low.

TYPICAL PERFOR A CE CHARACTERISTICS

PI FU CTIO S