參數(shù)資料
型號(hào): LT1790A-2.5
廠商: Linear Technology Corporation
英文描述: Dual Current Output 12-/14-/16-Bit SoftSpan DACs with Parallel I/O
中文描述: 雙路電流輸出12-/14-/16-Bit SoftSpan數(shù)模轉(zhuǎn)換器/ O的并行I
文件頁數(shù): 1/24頁
文件大小: 295K
代理商: LT1790A-2.5
LTC2753
1
2753f
TYPICAL APPLICATION
Dual 16-Bit V
OUT
DAC with Software-Selectable Ranges
FEATURES
APPLICATIONS
DESCRIPTION
Dual Current Output
12-/14-/16-Bit SoftSpan
DACs with Parallel I/O
The LTC
2753 is a family of dual 12-, 14-, and 16-bit
multiplying parallel-input, current-output DACs. These
DACs operate from a single 2.7V to 5.5V supply and are all
guaranteed monotonic over temperature. The LTC2753A-16
provides 16-bit performance (±1LSB INL and DNL) over
temperature without any adjustments. These SoftSpan
DACs offer six output ranges—two unipolar and four
bipolar—that 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 specified over commercial and industrial
temperature ranges.
Six Programmable Output Ranges
Unipolar: 0V to 5V, 0V to 10V
Maximum 16-Bit INL Error: ±1 LSB over Temperature
Low 1μA (Maximum) Supply Current
Guaranteed Monotonic over Temperature
Low Glitch Impulse 1nVs
2.7V to 5.5V Single Supply Operation
2μs Settling Time to ±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 × 7mm QFN Package
Bipolar: ±5V, ±10V, ±2.5V, –2.5V to 7.5V
High Resolution Offset and Gain Adjustment
Process Control and Industrial Automation
Automatic Test Equipment
Data Acquisition Systems
LTC2753-16 Integral Nonlinearity (INL)
SoftSpan is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners.
, LT LTC and LTM are registered trademarks of Linear Technology Corporation.
CODE
0
–1.0
I
–0.8
–0.4
–0.2
0.0
1.0
0.4
16384
32768
–0.6
0.6
0.8
0.2
49152
65535
2753 TA01b
25
°
C
90
°
C
–45
°
C
V
DD
= 5V
V
REF
= 5V
±
10V RANGE
+
+
+
SPAN I/O
DATA I/O
DAC A
46
47
R1
R2
2
1
48
39
40
LTC2753-16
R
FBA
I
OUT1A
V
OUTA
V
OUTB
I
OUT2A
R
VOSA
R
VOSB
I
OUT2B
I
OUT1B
R
FBB
45
4
44
43
32
42
41
R
OFSB
REFB
REFA
150pF
15pF
15pF
1/2 LT1469
1/2 LT1469
1/2 LT1469
R
COM
R
IN
R
OFSA
V
REF
5V
DAC B
2753 TA01
16
3
I/O PORT
I/O PORT
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