LTC2607/LTC2617/LTC2627
16-/14-/12-Bit Dual Rail-to-Rail
2
DACs with I C Interface
Features
Description
The LTC®2607/LTC2617/LTC2627 are dual 16-, 14- and
12-bit, 2.7V to 5.5V rail-to-rail voltage output DACs in a
12-leadDFNpackage.Theyhavebuilt-inhighperformance
output buffers and are guaranteed monotonic.
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Smallest Pin-Compatible Dual DACs:
LTC2607: 16 Bits
LTC2617: 14 Bits
LTC2627: 12 Bits
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Guaranteed Monotonic Over Temperature
These parts establish new board-density benchmarks for
16- and 14-bit DACs and advance performance standards
for output drive and load regulation in single-supply,
voltage-output DACs.
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27 Selectable Addresses
2
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400kHz I C Interface
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Wide 2.7V to 5.5V Supply Range
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Low Power Operation: 260µA per DAC at 3V
2
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Thepartsusea2-wire, I Ccompatibleserialinterface. The
Power Down to 1µA, Max
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LTC2607/LTC2617/LTC2627 operate in both the standard
mode (clock rate of 100kHz) and the fast mode (clock rate
of 400kHz). An asynchronous DAC update pin (LDAC) is
also included.
High Rail-to-Rail Output Drive ( 15mA, Min)
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Ultralow Crosstalk (30µV)
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Double-Buffered Data Latches
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Asynchronous DAC Update Pin
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LTC2607/LTC2617/LTC2627: Power-On Reset to
The LTC2607/LTC2617/LTC2627 incorporate a power-on
resetcircuit.Duringpower-up,thevoltageoutputsriseless
than 10mV above zero scale;and afterpower-up, they stay
at zero scale until a valid write and update take place. The
power-on reset circuit resets the LTC2607-1/LTC2617-1/
LTC2627-1 to mid-scale. The voltage outputs stay at mid-
scale until a valid write and update takes place.
Zero Scale
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LTC2607-1/LTC2617-1/LTC2627-1: Power-On Reset
to Mid-Scale
Tiny (3mm × 4mm) 12-Lead DFN Package
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applications
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.
Protected by U.S. Patents including 5396245 and 6891433. Patent Pending.
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Mobile Communications
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Process Control and Industrial Automation
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Instrumentation
Automatic Test Equipment
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Block Diagram
9
11
10
8
REFLO
GND
REF
V
CC
Differential Nonlinearity
(LTC2607)
12
V
12-/14-/16-BIT DAC
12-/14-/16-BIT DAC
7
1.0
0.8
V
OUTB
V
= 5V
= 4.096V
CC
OUTA
V
REF
0.6
DAC REGISTER
DAC REGISTER
0.4
0.2
0
INPUT REGISTER
INPUT REGISTER
–0.2
–0.4
–0.6
–0.8
–1.0
32-BIT SHIFT REGISTER
0
16384
32768
CODE
49152
65535
2-WIRE INTERFACE
SDA
2607 BD01b
CA0
CA1
LDAC
SCL
CA2
1
2
3
4
5
6
2607 BD01a
26071727fa
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