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參數(shù)資料
| 型號(hào)： | LTC2641CS8-16#PBF |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 1/24頁 |
| 文件大小： | 0K |
| 描述： | IC DAC 16BIT VOUT 8-SOIC |
| 產(chǎn)品培訓(xùn)模塊： | Open Loop DAC |
| 標(biāo)準(zhǔn)包裝： | 100 |
| 設(shè)置時(shí)間： | 1µs |
| 位數(shù)： | 16 |
| 數(shù)據(jù)接口： | 串行 |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 電壓電源： | 單電源 |
| 功率耗散（最大）： | 600µW |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SOIC |
| 包裝： | 管件 |
| 輸出數(shù)目和類型： | 1 電壓，單極 |
| 采樣率（每秒）： | * |
| 產(chǎn)品目錄頁面： | 1352 (CN2011-ZH PDF) |
LTC2641/LTC2642
1
26412fc
For more information www.linear.com/LTC2641
Typical applicaTion
FeaTures
applicaTions
DescripTion
16-/14-/12-Bit VOUT DACs in
3mm
× 3mm DFN
unbufferedvoltageoutputDACs.TheseDACsoperatefrom
a single 2.7V to 5.5V supply and are guaranteed mono-
tonic over temperature. The LTC2641A-16/LTC2642A-16
provide 16-bit performance (±1LSB INL and ±1LSB DNL)
over temperature. Unbuffered DAC outputs result in low
supply current of 120A and a low offset error of ±1LSB.
Both the LTC2641 and LTC2642 feature a reference input
range of 2V to VDD. VOUT swings from 0V to VREF. For
bipolar operation, the LTC2642 includes matched scaling
resistors for use with an external precision op amp (such
as the LT1678), generating a ±VREF output swing at RFB.
The LTC2641/LTC2642 use a simple SPI/MICROWIRE
compatible 3-wire serial interface which can be operated
at clock rates up to 50MHz and can interface directly
with optocouplers for applications requiring isolation. A
power-on reset circuit clears the LTC2641’s DAC output
to zero scale and the LTC2642’s DAC output to midscale
when power is initially applied. A logic low on the CLR pin
asynchronously clears the DAC to zero scale (LTC2641)
or midscale (LTC2642). These DACs are all specified over
the commercial and industrial ranges.
n
Tiny 3mm
× 3mm 8-Pin DFN Package
n
Maximum 16-Bit INL Error: ±1LSB over Temperature
n
Low 120A Supply Current
n
Guaranteed Monotonic over Temperature
n
Low 0.5nVsec Glitch Impulse
n
2.7V to 5.5V Single Supply Operation
n
Fast 1s Settling Time to 16 Bits
n
Unbuffered Voltage Output Directly Drives 60k Loads
n
50MHz SPI/QSPI/MICROWIRE Compatible
Serial Interface
n
Power-On Reset Clears DAC Output to Zero Scale
(LTC2641) or Midscale (LTC2642)
n
Schmitt-Trigger Inputs for Direct Optocoupler
Interface
n
Asynchronous CLR Pin
n
8-Lead MSOP and 3mm
× 3mm DFN Packages
(LTC2641)
n
10-Lead MSOP and 3mm
× 3mm DFN Packages
(LTC2642)
n
High Resolution Offset and Gain Adjustment
n
Process Control and Industrial Automation
n
Automatic Test Equipment
n
Data Aquisition Systems
Bipolar 16-Bit DAC
LTC2642-16 Integral Nonlinearity
–
+
16-BIT DATA LATCH
CONTROL
LOGIC
16-BIT DAC
1/2 LT1678
INV
RFB
VDD
VREF
2V TO VDD
BIPOLAR VOUT
–VREF TO VREF
0.1F
5pF
REF
2.7V TO 5.5V
VOUT
GND
26412 TA01a
16-BIT SHIFT REGISTER
1F
0.1F
LTC2642
POWER-ON
RESET
CS
SCLK
DIN
CLR
CODE
0
–1.0
INL
(LSB)
–0.8
–0.4
–0.2
0
1.0
0.4
16384
32768
26412 TA01b
–0.6
0.6
0.8
0.2
49152
65535
VDD = 5V
VREF = 2.5V
±2.5V RANGE
INL 25°C
INL 90°C
INL –45°C
L
, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
SoftSpan is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners.
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