LTC1588_15 Datasheet, PDF (1/16 Pages) Linear Technology – 12-/14-/16-Bit SoftSpan DACs with Programmable Output Range

LTC1588/LTC1589/LTC1592
12-/14-/16-Bit SoftSpan DACs
with Programmable Output Range
FEATURES
s _{Six Programmable Output Ranges}
Unipolar Mode: 0V to 5V, 0V to 10V
Bipolar Mode: ±5V, ±10V, ±2.5V, – 2.5V to 7.5V
s _{1LSB Max DNL and INL Over the Industrial}
Temperature Range
s _{Glitch Impulse < 2nV-s}
s _{16-Lead SSOP Package}
s _{Power-On Reset to 0V}
s _{Asynchronous Clear to 0V for All Ranges}
U
APPLICATIO S
s _{Process Control and Industrial Automation}
s _{Precision Instrumentation}
s _{Direct Digital Waveform Generation}
s _{Software-Controlled Gain Adjustment}
s _{Automatic Test Equipment}
DESCRIPTIO
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.
TYPICAL APPLICATIO
Programmable Output Range 16-Bit SoftSpan DAC
V_REF
5V
5₊
7
1/2 LT^®1469
6_–
C2
150pF
2
R1
R1
1
R_COM
R2
5V
9 _VCC
0.1µF
16 15 3 4
R2 REF R_OFS R_FB
I_{OUT1 5}
C1
15pF
15V ^0.1µF
2– ⁸
14
CLR
13
CS/LD
12
SCK
11
SDI
10
SDO
16-BIT DAC WITH SPAN ADJUST
LTC1592
I_{OUT2 6}
7
AGND
8
GND
1
1/2 LT1469
3+
4
–15V _0.1µF
1588992 TA01
V_OUT
LTC1592 Integral Nonlinearity
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
16384 32768 49152
DIGITAL INPUT CODE
65535
1588992 TA02
1588992fa
1