LTC2606/LTC2616/LTC2626
1
26061626fb
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
16-/14-/12-Bit Rail-to-Rail DACs
with I2C Interface
The LTC2606/LTC2616/LTC2626 are single 16-, 14- and
12-bit, 2.7V-to-5.5V rail-to-rail voltage output DACs in a
10-lead DFN package. 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 and load regulation in single-supply, volt-
age-output DACs.
The parts use a 2-wire, I2C compatible serial interface. The
LTC2606/LTC2616/LTC2626 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.
The LTC2606/LTC2616/LTC2626 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 LTC2606-1/LTC2616-1/
LTC2626-1 to mid-scale. The voltage outputs stay at mid-
scale until a valid write and update take place.
Differential Nonlinearity
(LTC2606)
n Smallest Pin-Compatible Single DACs:
LTC2606: 16 Bits
LTC2616: 14 Bits
LTC2626: 12 Bits
n Guaranteed 16-Bit Monotonic Over Temperature
n 27 Selectable Addresses
n 400kHz I2C Interface
n Wide 2.7V to 5.5V Supply Range
n Low Power Operation: 270μA at 3V
n Power Down to 1μA, Max
n High Rail-to-Rail Output Drive (± 15mA, Min)
n Double-Buffered Data Latches
n Asynchronous DAC Update Pin
n LTC2606/LTC2616/LTC2626: Power-On Reset to
Zero Scale
n LTC2606-1/LTC2616-1/LTC2626-1: Power-On
Reset to Mid-Scale
n Tiny (3mm × 3mm) 10-Lead DFN Package
n Mobile Communications
n Process Control and Industrial Automation
n Instrumentation
n Automatic Test Equipment
7
10
4
5
1
DAC
REGISTER
INPUT
REGISTER
I2C
INTERFACE
16-BIT DAC
VOUT
CONTROL
LOGIC
I2C
ADDRESS
DECODE
LDAC
SCL
SDA
CA0
CA1
CA2
2606 BD
8
GND
9
6
VCC
REF
3
2
CODE
0
16384
32768
49152
65535
DNL
(LSB)
2606 G02
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
VCC = 5V
VREF = 4.096V
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.
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相关代理商/技术参数
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