LTC2615_15 Datasheet, PDF (1/18 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
DESCRIPTION
n _{Smallest Pin-Compatible Octal DACs:}
LTC2605: 16 Bits
LTC2615: 14 Bits
LTC2625: 12 Bits
n _{Guaranteed Monotonic Over Temperature}
n _{400kHz I}²_{C Interface}
n _{Wide 2.7V to 5.5V Supply Range}
n _{Low Power Operation: 250μA per DAC at 3V}
n _{Individual Channel Power-Down to 1μA (Max)}
n _{Ultralow Crosstalk Between DACs (<10μV)}
n _{High Rail-to-Rail Output Drive (±15mA, Min)}
n _{Double-Buffered Digital Inputs}
n _{27 Selectable Addresses}
n _{LTC2605/LTC2615/LTC2625: Power-On Reset to}
Zero-Scale
n _{LTC2605-1/LTC2615-1/LTC2625-1: Power-On Reset}
to Mid-Scale
n _{Tiny 16-Lead Narrow SSOP Package}
APPLICATIONS
n _{Mobile Communications}
n _{Process Control and Industrial Automation}
n _{Instrumentation}
n _{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-/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 mid-scale. The voltage output stays at mid-
scale until a valid write and update takes place.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
TYPICAL APPLICATION
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
2605fa
1