
1
LTC2602/LTC2612/LTC2622
2602fa
, LTC and LT are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
BLOCK DIAGRA
W
DESCRIPTIO
U
APPLICATIO S
U
FEATURES
VOUT A
REF
CS/LD
SCK
VOUT B
GND
VCC
SDI
2602 BD01
8
1
2
4
3
5
7
6
16-BIT
DAC A
16-BIT
DAC B
DECODE
CONTROL
LOGIC
24-BIT SHIFT REGISTER
REGISTER
The LTC
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 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.
■ 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
A per DAC at 3V
■ Individual Channel Power-Down to 1
A, Max
■ Ultralow Crosstalk between DACs (30
V)
■ High Rail-to-Rail Output Drive (
±15mA)
■ Double-Buffered Data Latches
■ Pin-Compatible 10-Bit Version (LTC1661)
■ Tiny 8-Lead MSOP Package
■
Mobile Communications
■ Process Control and Industrial Automation
■ Instrumentation
■
Automatic Test Equipment
Differential Nonlinearity (DNL)(LTC2602)
CODE
0
16384
32768
49152
65535
ERROR
(LSB)
2602 TA01
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
VCC = 5V
VREF = 4.096V
LTC2602
Dual 16-/14-/12-Bit
Rail-to-Rail DACs in 8-Lead MSOP