LTC1588/LTC1589/LTC1592
12-/14-/16-Bit SoftSpan DACs
with Programmable Output Range
FEATURES
DESCRIPTIO
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Six Programmable Output Ranges The LTC 1588/LTC1589/LTC1592 are serial input 12-/14-
Unipolar Mode: 0V to 5V, 0V to 10V /16-bit multiplying current output DACs that operates
TM
Bipolar Mode: 5V, 10V, 2.5V, 2.5V to 7.5V from a single 5V supply. These SoftSpan DACs can be
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1LSB Max DNL and INL Over the Industrial software-programmed for either unipolar or bipolar mode
Temperature Range through a 3-wire SPI interface. In either mode, the voltage
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Glitch Impulse < 2nV-s output range can also be software-programmed. Two
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16-Lead SSOP Package output ranges in unipolar mode and four output ranges in
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Power-On Reset to 0V bipolar mode are available.
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Asynchronous Clear to 0V for All Ranges
INL and DNL are accurate to 1LSB over the industrial
temperature range in both unipolar and bipolar modes.
U
True 16-bit 4-quadrant multiplication is achieved with
APPLICATIO S
on-chip four quadrant multiplication resistors. The
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Process Control and Industrial Automation
LTC1588/LTC1589/LTC1592 are available in a 16-lead
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Precision Instrumentation
SSOP package.
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Direct Digital Waveform Generation
These devices include an internal deglitcher circuit that
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Software-Controlled Gain Adjustment
reduces the glitch impulse to less than 2nV-s (typ).
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Automatic Test Equipment
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
LTC1592 Integral Nonlinearity
5
+
1.0
7
V = 5V
1/2 LT 1469 REF
0.8
ALL OUTPUT RANGES
6
0.6
C2
150pF
0.4
0.2
2 1 16 15 3 4
0
R1 R R2 REF R R
COM FB
OFS
C1
0.2
R1 R2
15pF
0.1F
0.4
9
15V
5V V
CC
8 0.6
0.1F
I
OUT1 5 2
0.8
1
14
16-BIT DAC WITH SPAN ADJUST 1/2 LT1469 V
CLR OUT
1.0
I
13 OUT2 6 3 +
0 49152
16384 32768 65535
CS/LD
12 7 DIGITAL INPUT CODE
4
SCK AGND
1588992 TA02
11
8
15V
SDI GND
0.1F
LTC1592
10
SDO
1588992 TA01
1588992fa
1
INTEGRAL NONLINEARITY (LSB)
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ULTC1588/LTC1589/LTC1592
UUW
ABSOLUTE AXI U RATI GS
PACKAGE/ORDER I FOR ATIO
(Note 1)
V to AGND, GND ......................................0.3V to 7V
ORDER PART
CC
TOP VIEW NUMBER
AGND to GND .............................. 0.3V to (V + 0.3V)
CC
GND to AGND .............................. 0.3V to (V + 0.3V)
CC
R 1 16 R2
COM
LTC1588CG
R to AGND, GND ................................ 0.3V to 12V R1 2 15 REF
COM
LTC1588IG
R 3 14 CLR
OFS
REF to AGND, GND ................................................ 15V
R 4 13 CS/LD
FB
LTC1589CG
R , R , R1, R2 to AGND, GND .......................... 15V
OFS FB
I 5 12 SCK
OUT1
LTC1589IG
Digital Inputs to AGND, GND ....... 0.3V to (V + 0.3V)
CC I 6 11 SDI
OUT2
LTC1592ACG
AGND 7 10 SDO
I , I to AGND, GND .......... 0.3V to (V + 0.3V)
OUT1 OUT2 CC
GND 8 9 V LTC1592AIG
CC
Maximum Junction Temperature .......................... 150 C
LTC1592BCG
G PACKAGE
Operating Temperature Range
16-LEAD PLASTIC SSOP
LTC1592BIG
LTC1588C/LTC1589C/LTC1592C ........... 0 C to 70 C
T = 150 C, q = 125 C/ W
JMAX JA
LTC1588I/LTC1589I/LTC1592I ........... 40 C to 85 C
Storage Temperature Range ................. 65 C to 150 C
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Lead Temperature (Soldering, 10 sec).................. 300 C
ELECTRICAL CHARACTERISTICS
The l denotes specifications which apply over the full operating temperature range, otherwise specifications are T = T to T ,
A MIN MAX
V = 5V, V = 5V, I = AGND = GND = 0V.
CC REF OUT2
LTC1588 LTC1589 LTC1592B LTC1592A
SYMBOL PARAMETER CONDITIONS TEMPERATURE MIN TYP MAX MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
Accuracy
Resolution l 12 14 16 16 Bits
INL Integral (Notes 2, 3) T = 25 C 1 1 2 0.3 1LSB
A
to T l 1 1 2 0.4 1LSB
Nonlinearity T
MIN MAX
DNL Differential Guaranteed T to T l 1 1 1 0.2 1LSB
MIN MAX
Nonlinearity Monotonic (Note 3)
GE Gain Error All Output Ranges T = 25 C 0.20 3 1.0 43 16 2 16 LSB
A
(Note 3) T to T l 0.22 3 1.3 64 24 3 16 LSB
MIN MAX
BZE Bipolar Zero Error All Bipolar Ranges T = 25 C 1 2.5 10 5LSB
A
(Note 3) T to T l 1 4.0 16 8LSB
MIN MAX
Gain Temperature D Gain/D Temperature l 3 3 3 1 3 ppm/ C
Coefficient (Note 4)
I I Leakage (Note 5) T = 25 C 5 5 5 5nA
LKG OUT1 A
Current T to T l 15 15 15 15 nA
MIN MAX
PSRR Power Supply V = 5V 10% l 0.01 0.15 0.05 0.5 2 0.2 2 LSB/V
CC
Rejection
1588992fa
2
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