Linear Technology DC935A - LTC2605 Octal 16-bit I²C Vout DAC (req DC590) DC935A DC935A Scheda Tecnica
Codici prodotto
DC935A
LTC2605/LTC2615/LTC2625
1
2605fa
TYPICAL APPLICATION
FEATURES
DESCRIPTION
Octal 16-/14-/12-Bit
Rail-to Rail DACs in 16-Lead SSOP
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.
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.
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 I
2
C 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).
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.
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.
Differential Nonlinearity (LTC2605)
APPLICATIONS
n
Smallest Pin-Compatible Octal DACs:
LTC2605: 16 Bits
LTC2615: 14 Bits
LTC2625: 12 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
n
Mobile Communications
n
Process Control and Industrial Automation
n
Instrumentation
n
Automatic Test Equipment
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.
Technology Corporation. All other trademarks are the property of their respective owners.
2
15
1
GND
V
OUT A
V
OUT B
V
OUT C
V
OUT D
REF
CA2
SCL
V
CC
V
OUT H
V
OUT G
V
OUT F
V
OUT E
CA0
CA1
SDA
2605/15/25 BD
16
DAC A
3
14
4
13
5
7
6
8
10
11
9
12
2-WIRE INTERFACE
32-BIT SHIFT REGISTER
REGISTER
REGISTER
DAC H
REGISTER
REGISTER
DAC B
REGISTER
REGISTER
DAC G
REGISTER
REGISTER
DAC C
REGISTER
REGISTER
DAC F
REGISTER
REGISTER
DAC D
REGISTER
REGISTER
DAC E
REGISTER
REGISTER
CODE
0
16384
32768
49152
65535
DNL (LSB)
2605 G02
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
V
CC
= 5V
V
REF
= 4.096V