參數(shù)資料
型號: LTC2704IGW-12#PBF
廠商: Linear Technology
文件頁數(shù): 10/22頁
文件大小: 0K
描述: IC DAC 12BIT QUAD VOUT 44-SSOP
產(chǎn)品培訓模塊: LTC275x 18-Bit DAC
標準包裝: 27
設置時間: 8µs
位數(shù): 12
數(shù)據(jù)接口: 串行,SPI?
轉(zhuǎn)換器數(shù)目: 4
電壓電源: 模擬和數(shù)字,雙 ±
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 44-BSOP(0.295",7.50mm 寬)
供應商設備封裝: 44-SSOP
包裝: 管件
輸出數(shù)目和類型: 4 電壓,單極;4 電壓,雙極
采樣率(每秒): *
LTC2704
18
2704fd
Voltage Output/Feedback and Compensation
TheLTC2704providesseparatevoltageoutputandfeedback
pins for each DAC. This allows compensation for resistance
between the output and load, or a current boosting stage
such as an LT1970 may be inserted without affecting ac-
curacy. When OUTx is connected directly to RFBx and no
GND1 TRACE,
SEPARATED FROM
AGND UNDER LTC2704
EXPOSED GROUND PLANE AROUND EDGE
ALLOWS GROUNDING TO PROTOTYPE CIRCUITS
2704 F03
GND2 TRACE,
SEPARATED FROM
AGND UNDER LTC2704
CUTOUT PREVENTS DIGITAL RETURN CURRENTS
FROM COUPLING INTO ANALOG GROUND PLANE. NOTE
THAT THERE IS A PLANE IN THIS REGION ON LAYER 3
2704 F04
Figure 3. DC752 Top Layer
Figure 4. DC752 Analog Ground Layer. No Currents Are Returned
to this Plane, so it May Be Used As a Reference Point for Precise
Voltage Measurements
additional capacitance is present, the internal frequency
compensation is sufcient for stability and is optimized
for fast settling time. If a low bandwidth booster stage is
used, then a compensation capacitor from OUTx to C1x
may be required. Similarly, extra compensation may be
required to drive a heavy capacitive load.
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