LTC2605 Datasheet, PDF (1/16 Pages) Linear Technology – Octal 16-/14-/12-Bit Rail-to-Rail DACs in 16-Lead SSOP

LTC2605/LTC2615/LTC2625
Octal 16-/14-/12-Bit
Rail-to-Rail DACs in 16-Lead SSOP
FEATURES
DESCRIPTIO
■ _{Smallest Pin-Compatible Octal DACs:}
LTC2605: 16 Bits
LTC2615: 14 Bits
LTC2625: 12 Bits
■ _{Guaranteed Monotonic Over Temperature}
■ _{400kHz I}²_{C Interface}
■ _{Wide 2.7V to 5.5V Supply Range}
■ _{Low Power Operation: 250µA per DAC at 3V}
■ _{Individual Channel Power-Down to 1µA, Max}
■ _{Ultralow Crosstalk Between DACs (<10µV)}
■ _{High Rail-to-Rail Output Drive (±15mA, Min)}
■ _{Double-Buffered Digital Inputs}
■ _{27 Selectable Addresses}
■ _{LTC2605/LTC2615/LTC2625: Power-On Reset to}
Zero Scale
■ _{LTC2605-1/LTC2615-1/LTC2625-1: Power-On Reset}
to Midscale
■ _{Tiny 16-Lead Narrow SSOP Package}
U
APPLICATIO S
■ _{Mobile Communications}
■ _{Process Control and Industrial Automation}
■ _{Instrumentation}
■ _{Automatic Test Equipment}
The LTC^®2605/LTC2615/LTC2625 are octal 16-, 14-
and 12-bit, 2.7V to 5.5V rail-to-rail voltage-output DACs in
16-lead narrow SSOP packages. They have built-in
high performance output buffers and are guaranteed
monotonic.
These parts establish new board-density benchmarks
for 16- and 14-bit DACs and advance performance
standards for output drive, crosstalk and load regulation
in single-supply, voltage-output multiples.
The parts use the 2-wire I²C compatible serial interface.
The LTC2605/LTC2615/LTC2625 operate in both the
standard mode (maximum clock rate of 100kHz) and the
fast mode (maximum clock rate of 400kHz).
The LTC2605/LTC2615/LTC2625 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.
The power-on reset circuit resets the LTC2605-1/
LTC2615-1/LTC2625-1 to midscale. The voltage output
stays at midscale until a valid write and update
takes place.
, LTC and LT are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
BLOCK DIAGRA
GND 1
V_{OUT A} 2
DAC A
V_{OUT B} 3
DAC B
V_{OUT C} 4
DAC C
V_{OUT D} 5
REF 6
CA2 7
SCL 8
DAC D
32-BIT SHIFT REGISTER
2-WIRE INTERFACE
DAC H
16 V_CC
15 V_{OUT H}
DAC G
14 VOUT G
DAC F
13 VOUT F
DAC E
12 VOUT E
11 CA0
10 CA1
9 SDA
2605/15/25 BD
Differential Nonlinearity (LTC2605)
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
2605 G02
2605f
1