LTC2602/LTC2612/LTC2622
Dual 16-/14-/12-Bit
Rail-to-Rail DACs in 8-Lead MSOP
FEATURES
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DESCRIPTIO
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Smallest Pin-Compatible Dual DACs:
LTC2602: 16-Bits
LTC2612: 14-Bits
LTC2622: 12-Bits
Guaranteed 16-Bit Monotonic Over Temperature
Wide 2.5V to 5.5V Supply Range
Low Power Operation: 300碌A per DAC at 3V
Individual Channel Power-Down to 1碌A, Max
Ultralow Crosstalk between DACs (30碌V)
High Rail-to-Rail Output Drive (鹵15mA)
Double-Buffered Data Latches
Pin-Compatible 10-Bit Version (LTC1661)
Tiny 8-Lead MSOP Package
The LTC
廬
2602/LTC2612/LTC2622 are dual 16-,14- and
12-bit, 2.5V-to-5.5V rail-to-rail voltage-output DACs, in a
tiny 8-lead MSOP package. They have built-in high per-
formance output buffers and are guaranteed monotonic.
These parts establish advanced performance standards
for output drive, crosstalk and load regulation in single-
supply, voltage output multiples.
The parts use a simple SPI/MICROWIRE鈩?compatible
3-wire serial interface which can be operated at clock
rates up to 50MHz.
The LTC2602/LTC2612/LTC2622 incorporate a power-
on reset circuit. During power-up, the voltage outputs
rise less than 10mV above zero scale, and after power-
up, they stay at zero scale until a valid write and update
take place.
, LTC and LT are registered trademarks of Linear Technology Corporation.
MICROWIRE is a trademark of National Semiconductor Corporation.
APPLICATIO S
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Mobile Communications
Process Control and Industrial Automation
Instrumentation
Automatic Test Equipment
BLOCK DIAGRA
LTC2602
REGISTER
REGISTER
REGISTER
REGISTER
Differential Nonlinearity (DNL)(LTC2602)
1.0
16-BIT
DAC B
5 V
OUT B
V
OUT A
8
16-BIT
DAC A
0.8
0.6
0.4
ERROR (LSB)
0.2
0
鈥?.2
鈥?.4
GND 7
6 V
CC
CS/LD 1
CONTROL
LOGIC
DECODE
4 REF
鈥?.6
鈥?.8
SCK 2
24-BIT SHIFT REGISTER
3 SDI
鈥?.0
2602 BD01
U
V
CC
= 5V
V
REF
= 4.096V
0
16384
32768
CODE
49152
65535
2602 TA01
W
U
2602f
1