LTC1446CS8#PBF Linear Technology, LTC1446CS8#PBF Datasheet - Page 9
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LTC1446CS8#PBF
Manufacturer Part Number
LTC1446CS8#PBF
Description
IC D/A CONV 12BIT R-R DUAL 8SOIC
Manufacturer
Linear Technology
Datasheet
1.LTC1446CN8PBF.pdf
(12 pages)
Specifications of LTC1446CS8#PBF
Settling Time
14µs
Number Of Bits
12
Data Interface
Serial
Number Of Converters
2
Voltage Supply Source
Single Supply
Power Dissipation (max)
5mW
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Number Of Channels
2
Resolution
12b
Interface Type
Serial (3-Wire)
Single Supply Voltage (typ)
5V
Dual Supply Voltage (typ)
Not RequiredV
Power Supply Requirement
Single
Output Type
Voltage
Integral Nonlinearity Error
5LSB
Single Supply Voltage (min)
4.5V
Single Supply Voltage (max)
5.5V
Dual Supply Voltage (min)
Not RequiredV
Dual Supply Voltage (max)
Not RequiredV
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
8
Package Type
SOIC N
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
This circuit shows how to use an LTC1446 and an
LT
with an offset that can be digitally programmed. V
which can be set by loading the appropriate digital code
TYPICAL APPLICATIONS
®
1077 to make a wide bipolar output swing 12-bit DAC
A Wide Swing, Bipolar Output DAC with Digitally Controlled Offset
P
V
U
OUT
–4.096
–8.190
8.190
4.094
0
N
CLK
D
CS/LD
D
IN
OUT
LTC1446
OUT A
V
V
OUT B
OUT A
GND
A: V
B: V
C: V
V
CC
,
OUT A
OUT A
OUT A
for DAC A, sets the offset. As this value changes, the
transfer curve for the output moves up and down as
illustrated in the graph below.
5V
0V
2.048V
4.095V
50k
50k
100k
0.1 F
A
B
C
1446/46L F02
+
–
LT1077
–15V
15V
100k
D
IN
LTC1446/LTC1446L
V
2 (V
OUT
OUT B
=
– V
OUT A)
9