LTC1446 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC1446' PDF : 12 Pages View PDF
TYPICAL PERFORMANCE CHARACTERISTICS
LTC1446L Supply Current vs Logic
Input Voltage
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.5
1.0 1.5 2.0 2.5 3.0
LOGIC INPUT VOLTAGE (V)
1446/46L G10
LTC1446 Supply Current vs
Temperature
970
960
950
VCC = 5.5V
940
930
VCC = 5V
920
910
VCC = 4.5V
900
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
1446/46L G11
LTC1446/LTC1446L
LTC1446L Supply Current
vs Temperature
700
690
680
VCC = 3.3V
670
660
VCC = 3V
650
640
VCC = 2.7V
630
620
– 55 – 35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
1446/46L G12
PIN FUNCTIONS
CLK: The Serial Interface Clock.
DIN: The Serial Interface Data.
CS/LD: The Serial Interface Enable and Load Control.
When CS/LD is low the CLK signal is enabled, so the data
can be clocked in. When CS/LD is pulled high data is
loaded from the shift register into the DAC registers,
updating the DAC outputs.
DOUT: The output of the shift register which becomes valid
on the rising edge of the serial clock.
GND: Ground.
VOUT A,VOUT B: Buffered DAC Outputs.
VCC: Positive Supply Input.
4.5V ≤ VCC ≤ 5.5V (LTC1446), 2.7V ≤ VCC ≤ 5.5V
(LTC1446L). Requires a bypass capacitor to ground.
5
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