LTC2622_15 Datasheet, PDF (1/16 Pages) Linear Technology – Dual 16-/14-/12-Bit Rail-to-Rail DACs in 8-Lead MSOP

LTC2602/LTC2612/LTC2622
Dual 16-/14-/12-Bit
Rail-to-Rail DACs in 8-Lead MSOP
FEATURES
■ _{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: 300µA per DAC at 3V}
■ _{Individual Channel Power-Down to 1µA, Max}
■ _{Ultralow Crosstalk between DACs (30µV)}
■ _{High Rail-to-Rail Output Drive (±15mA)}
■ _{Double-Buffered Data Latches}
■ _{Pin-Compatible 10-Bit Version (LTC1661)}
■ _{Tiny 8-Lead MSOP Package}
U
APPLICATIO S
■ _{Mobile Communications}
■ _{Process Control and Industrial Automation}
■ _{Instrumentation}
■ _{Automatic Test Equipment}
DESCRIPTIO
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.
, LTC and LT are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
BLOCK DIAGRA
LTC2602
V_{OUT A} 8
16-BIT
DAC A
GND 7
CS/LD 1
SCK 2
CONTROL
LOGIC
DECODE
24-BIT SHIFT REGISTER
16-BIT
DAC B
5 V_{OUT B}
6 ^VCC
4 REF
3 SDI
2602 BD01
Differential Nonlinearity (DNL)(LTC2602)
1.0
V_CC = 5V
0.8 V_REF = 4.096V
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
0
16384
32768
CODE
49152 65535
2602 TA01
2602fa
1