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LTC1588/LTC1589/LTC1592
1588992fa
■
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.
■
Process Control and Industrial Automation
■
Precision Instrumentation
■
Direct Digital Waveform Generation
■
Software-Controlled Gain Adjustment
■
Automatic Test Equipment
12-/14-/16-Bit SoftSpan DACs
with Programmable Output Range
–
+
1/2 LT
®
1469
–
+
1/2 LT1469
16-BIT DAC WITH SPAN ADJUST
LTC1592
R
COM
1
R1
2
V
CC
0.1µF
9
R2
R2
R1
16
R
OFS
3
7
5
V
REF
5V
6
REF
15
R
FB
I
OUT1
V
OUT
4
5V
5
1
2
3
I
OUT2
AGND
GND
CLR
CS/LD
SCK
SDI
SDO
6
7
8
14
13
12
11
10
C2
150pF
C1
15pF
1588992 TA01
15V
–15V
8
4
0.1µF
0.1µF
, LTC and LT are registered trademarks of Linear Technology Corporation.
Programmable Output Range 16-Bit SoftSpan DAC
DIGITAL INPUT CODE
0
INTEGRAL NONLINEARITY (LSB)
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
16384
32768
1588992 TA02
49152
65535
V
REF
= 5V
ALL OUTPUT RANGES
LTC1592 Integral Nonlinearity
SoftSpan is a trademark of Linear Technology Corporation.
FEATURES
DESCRIPTIO
U
APPLICATIO S
U
TYPICAL APPLICATIO
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Verzeichnis
