LTC1595/LTC1596/LTC1596-1
1
159561fc
For more information www.linear.com/LTC1595
TYPICAL APPLICATION
FEATURES DESCRIPTION
Serial 16-Bit
Multiplying DACs
The LTC
®
1595/LTC1596/LTC1596-1 are serial input, 16-bit
multiplying current output DACs. The LTC1595 is pin and
hardware compatible with the 12-bit DAC8043 and comes
in 8-pin PDIP and SO packages. The LTC1596 is pin and
hardware compatible with the 12-bit DAC8143/AD7543
and comes in the 16-pin SO wide package.
Both are specified over the industrial temperature range.
Sensitivity of INL to op amp V
OS
is reduced by five times
compared to the industry standard 12-bit DACs, so most
systems can be easily upgraded to true 16-bit resolution
and linearity without requiring more precise op amps.
These DACs include an internal deglitching circuit that
reduces the glitch impulse by more than ten times to less
than 1nV-s typ.
The DACs have a clear input and a power-on reset. The
LTC1595 and LTC1596 reset to zero-scale. The LTC1596
-1
is a version of the LTC1596 that resets to mid-scale.
APPLICATIONS
n
SO-8 Package (LTC1595)
n
DNL and INL: 1LSB Max
n
Low Glitch Impulse: 1nV-s Typ
n
Fast Settling to 1LSB: 2µs (with LT1468)
n
Pin Compatible with Industry Standard
12-Bit DACs: DAC8043 and DAC8143/AD7543
n
4-Quadrant Multiplication
n
Low Supply Current: 10µA Max
n
Power-On Reset
n
LTC1595/LTC1596: Resets to Zero-Scale
n
LTC1596-1: Resets to Mid-Scale
n
3-Wire SPI and MICROWIRE Compatible
Serial Interface
n
Daisy-Chain Serial Output (LTC1596)
n
Asynchronous Clear Input
n
LTC1596: Clears to Zero-Scale
n
LTC1596-1: Clears to Mid-Scale
n
Process Control and Industrial Automation
n
Software Controlled Gain Adjustment
n
Digitally Controlled Filter and Power Supplies
n
Automatic Test Equipment
Integral Nonlinearity
SO-8 Multiplying 16-Bit DAC Has Easy 3-Wire Serial Interface
V
DD
V
REF
LTC1595
R
FB
GND
4
7
6
5
8
5V
IN
DATA
LOAD
CLK
SRI
LD
1
2
3
OUT1
33pF
V
OUT
–
+
LT
®
1468
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.
DIGITAL INPUT CODE
0
–1.0
INTEGRAL NONLINEARITY (LSB)
–0.6
–0.8
–0.4
0.4
0.6
0.8
1.0
–0.2
0.2
0
16384 32768
1595/96 TA02
49152 65535
