multiplying parallel-input, current-output DACs. These
guaranteed monotonic over temperature. The LTC2753A-16
temperature without any adjustments. These SoftSpan鈩?/div>
DACs offer six output ranges鈥攖wo unipolar and four
bipolar鈥攖hat can be programmed through the parallel
interface, or pinstrapped for operation in a single range.
The LTC2753 DACs use a bidirectional input/output parallel
interface that allows readback of any on-chip register. A
power-on reset circuit resets the DAC outputs to 0V when
power is initially applied. A logic low on the
CLR
pin asyn-
chronously clears the DACs to 0V in any output range.
The parts are speci鏗乪d over commercial and industrial
temperature ranges.
, LT LTC and LTM are registered trademarks of Linear Technology Corporation.
,
SoftSpan is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners.
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
Six Programmable Output Ranges
Unipolar: 0V to 5V, 0V to 10V
Bipolar: 鹵5V, 鹵10V, 鹵2.5V, 鈥?.5V to 7.5V
Maximum 16-Bit INL Error: 鹵1 LSB over Temperature
Low 1渭A (Maximum) Supply Current
Guaranteed Monotonic over Temperature
Low Glitch Impulse 1nV鈥
2.7V to 5.5V Single Supply Operation
2渭s Settling Time to 鹵1 LSB
Parallel Interface with Readback of All Registers
Asynchronous
CLR
Pin Clears DAC Outputs to 0V in
Any Output Range
Power-On Reset to 0V
48-Pin 7mm 脳 7mm QFN Package
APPLICATIONS
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
High Resolution Offset and Gain Adjustment
Process Control and Industrial Automation
Automatic Test Equipment
Data Acquisition Systems
TYPICAL APPLICATION
Dual 16-Bit V
OUT
DAC with Software-Selectable Ranges
V
REF
5V
R
OFSA
47
R
IN
2
LTC2753-16
46 R
FBA
15pF
45 I
OUT1A
DAC A
R2
REFA 48
REFB 39
4 I
OUT2A
44 R
VOSA
43 R
VOSB
LTC2753-16 Integral Nonlinearity (INL)
V
DD
= 5V
0.8
V
REF
= 5V
鹵10V
RANGE
0.6
1.0
+
1/2 LT1469
R1
R
COM
1
鈥?/div>
150pF
INL (LSB)
DAC B
42 I
OUT1B
R
OFSB
40
SPAN I/O
DATA I/O
3
16
I/O PORT
I/O PORT
15pF
41 R
FBB
鈥?/div>
+
32 I
OUT2B
+
1/2 LT1469
V
OUTB
2753 TA01
鈥?/div>
1/2 LT1469
V
OUTA
0.4
0.2
0.0
鈥?.2
鈥?.4
鈥?.6
鈥?.8
鈥?.0
0
16384
32768
CODE
49152
25擄C
90擄C
鈥?5擄C
65535
2753 TA01b
2753f
1
next
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