LTC1588/LTC1589/LTC1592
12-/14-/16-Bit SoftSpan DACs
with Programmable Output Range
FEATURES
s
DESCRIPTIO
s
s
s
s
s
Six Programmable Output Ranges
Unipolar Mode: 0V to 5V, 0V to 10V
Bipolar Mode:
±5V, ±10V, ±2.5V,
– 2.5V to 7.5V
1LSB Max DNL and INL Over the Industrial
Temperature Range
Glitch Impulse < 2nV-s
16-Lead SSOP Package
Power-On Reset to 0V
Asynchronous Clear to 0V for All Ranges
The LTC
®
1588/LTC1589/LTC1592 are serial input 12-/14-
/16-bit multiplying current output DACs that operates
from a single 5V supply. These SoftSpan
TM
DACs can be
software-programmed for either unipolar or bipolar mode
through a 3-wire SPI interface. In either mode, the voltage
output range can also be software-programmed. Two
output ranges in unipolar mode and four output ranges in
bipolar mode are available.
INL and DNL are accurate to 1LSB over the industrial
temperature range in both unipolar and bipolar modes.
True 16-bit 4-quadrant multiplication is achieved with
on-chip four quadrant multiplication resistors. The
LTC1588/LTC1589/LTC1592 are available in a 16-lead
SSOP package.
These devices include an internal deglitcher circuit that
reduces the glitch impulse to less than 2nV-s (typ).
The asynchronous clear pin resets the LTC1588/LTC1589/
LTC1592 to 0V in unipolar or bipolar mode.
, LTC and LT are registered trademarks of Linear Technology Corporation.
SoftSpan is a trademark of Linear Technology Corporation.
APPLICATIO S
s
s
s
s
s
Process Control and Industrial Automation
Precision Instrumentation
Direct Digital Waveform Generation
Software-Controlled Gain Adjustment
Automatic Test Equipment
TYPICAL APPLICATIO
V
REF
5V
5
Programmable Output Range 16-Bit SoftSpan DAC
LTC1592 Integral Nonlinearity
7
INTEGRAL NONLINEARITY (LSB)
+
1/2 LT
®
1469
6
–
C2
150pF
2
R1
R1
5V
9
0.1µF
14
13
12
11
10
CLR
CS/LD
SCK
SDI
SDO
V
CC
1
R
COM
R2
16 15
3
4
C1
15pF
15V
8
0.1µF
R2 REF R
OFS
R
FB
16-BIT DAC WITH SPAN ADJUST
I
OUT2
6
AGND
LTC1592
GND
7
8
3
1588992 TA01
+
–
I
OUT1
5
2
1/2 LT1469
4
–15V
1
V
OUT
0.1µF
U
1.0
V
REF
= 5V
0.8 ALL OUTPUT RANGES
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
0
49152
32768
16384
DIGITAL INPUT CODE
65535
1588992 TA02
U
U
1588992fa
1
LINEAR [ LINEAR INTEGRATED SYSTEMS ]
