LTC2607/LTC2617/LTC2627
16-/14-/12-Bit Dual Rail-to-Rail
DACs with I2C Interface
U
FEATURES
DESCRIPTIO
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-lead DFN package. They have built-in high perfor-
mance 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.
Thepartsusea2-wire, I2Ccompatibleserialinterface. The
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.
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27 Selectable Addresses
400kHz I2CTM 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
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Power Down to 1µA, Max
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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
than10mVabovezeroscale;andafterpower-up, theystay
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 midscale. The voltage outputs stay at
midscale until a valid write and update takes place.
Zero Scale
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LTC2607-1/LTC2617-1/LTC2627-1: Power-On Reset
to Midscale
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Tiny (3mm × 4mUm) 12-Lead DFN Package
APPLICATIO S
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, LTC and LT 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
Mobile Communications
Process Control and Industrial Automation
Instrumentation
Automatic Test Equipment
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W
BLOCK DIAGRA
REFLO
11
GND
10
REF
9
V
CC
8
Differential Nonlinearity
(LTC2607)
1.0
0.8
V
OUTA
V
OUTB
12
12-/14-/16-BIT DAC
12-/14-/16-BIT DAC
7
V
V
= 5V
CC
= 4.096V
REF
0.6
0.4
DAC REGISTER
DAC REGISTER
0.2
0
INPUT REGISTER
INPUT REGISTER
–0.2
–0.4
–0.6
–0.8
–1.0
32-BIT SHIFT REGISTER
2-WIRE INTERFACE
0
16384
32768
CODE
49152
65535
2607 G02
1
2
3
4
5
6
LDAC
CA0
CA1
SCL
SDA
CA2
2607 BD
26071727f
1