LTC1661CMS8 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC1661CMS8' PDF : 12 Pages View PDF
LTC1661
TYPICAL PERFORMANCE CHARACTERISTICS
Supply Current
vs Logic Input Voltage
1.0
ALL DIGITAL INPUTS
SHORTED TOGETHER
0.8
0.6
0.4
0.2
0
0
1
2
3
4
5
LOGIC INPUT VOLTAGE (V)
1661 G10
Supply Current vs Temperature
150
140 VREF = VCC
CODE = 1023
130
120
110
VCC = 5.5V
100
VCC = 4.5V
90
VCC = 3.6V
80
70
VCC = 2.7V
60
50
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
1661 G11
PIN FUNCTIONS
CS/LD (Pin 1): Serial Interface Chip Select/Load Input.
When CS/LD is low, SCK is enabled for shifting data on
DIN into the register. When CS/LD is pulled high, SCK is
disabled and the operation(s) specified in the control code,
A3-A0, is (are) performed. CMOS and TTL compatible.
SCK (Pin 2): Serial Interface Clock Input. CMOS and TTL
compatible.
DIN (Pin 3): Serial Interface Data Input. Input word data on
the DIN pin is shifted into the 16-bit register on the rising
edge of SCK. CMOS and TTL compatible.
REF (Pin 4): Reference Voltage Input. 0V ≤ VREF ≤ VCC.
VOUT A, VOUT B (Pin 8, Pin 5): DAC Analog Voltage Outputs.
The output range is
0
≤
VOUTA,VOUTB
≤
VREF
1023
1024
VCC (Pin 6): Supply Voltage Input. 2.7V ≤ VCC ≤ 5.5V.
GND (Pin 7): System Ground.
1661fa
6
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