參數(shù)資料
型號(hào)： LTC2259CUJ-14#PBF
廠商： LINEAR TECHNOLOGY CORP
元件分類： ADC
英文描述： 1-CH 14-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC40
封裝： 6 X 6 MM, LEAD FREE, PLASTIC, QFN-40
文件頁(yè)數(shù)： 11/32頁(yè)
文件大?。?/td> 431K
代理商： LTC2259CUJ-14#PBF
19
226114fa
LTC2261-14
LTC2260-14/LTC2259-14
APPLICATIONS INFORMATION
25Ω
200Ω
0.1μF
AIN
+
AIN
–
12pF
0.1μF
VCM
LTC2261-14
226114 F07
–
+
ANALOG
INPUT
HIGH SPEED
DIFFERENTIAL
AMPLIFIER
0.1μF
Figure 7. Front-End Circuit Using a High
Speed Differential Amplier
Reference
The LTC2261-14/LTC2260-14/LTC2259-14 have an internal
1.25V voltage reference. For a 2V input range using the
internal reference, connect SENSE to VDD. For a 1V input
range using the external reference, connect SENSE to
ground. For a 2V input range with an external reference,
apply a 1.25V reference voltage to SENSE (Figure 9.)
The input range can be adjusted by applying a voltage to
SENSE that is between 0.625V and 1.30V. The input range
will then be 1.6 VSENSE.
VREF
REFH
SENSE
TIE TO VDD FOR 2V RANGE;
TIE TO GND FOR 1V RANGE;
RANGE = 1.6 VSENSE FOR
0.65V < VSENSE < 1.300V
1.25V
REFL
0.1μF
2.2μF
INTERNAL ADC
HIGH REFERENCE
BUFFER
226114 F08
LTC2261-14
5Ω
0.8x
DIFF AMP
INTERNAL ADC
LOW REFERENCE
1.25V BANDGAP
REFERENCE
0.625V
RANGE
DETECT
AND
CONTROL
1μF
0.1μF
Figure 8. Reference Circuit
SENSE
1.25V
EXTERNAL
REFERENCE
1μF
VREF
226114 F09
LTC2261-14
Figure 9. Using an External 1.25V Reference
The VREF, REFH and REFL pins should be bypassed as
shown in Figure 8. The 0.1μF capacitor between REFH
and REFL should be as close to the pins as possible (not
on the back side of the circuit board).
相關(guān)PDF資料
PDF描述
LTC2259CUJ-14#TRPBF 1-CH 14-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC40
LTC2260IUJ-14#TRPBF 1-CH 14-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC40
LTC2262CUJ-14#TRPBF 1-CH 14-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC40
LTC2262IUJ-14#PBF 1-CH 14-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC40
LTC2262IUJ-14#TRPBF 1-CH 14-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC40
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC2259CUJ-14-TRPBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:14-Bit, 125/105/80Msps Ultralow Power 1.8V ADCs
LTC2259CUJ-16 制造商:LINER 制造商全稱:Linear Technology 功能描述:16-Bit, 80Msps Ultralow Power 1.8V ADC
LTC2259CUJ-16#PBF 制造商:Linear Technology 功能描述:ADC Single Pipelined 80Msps 16-bit Parallel/LVDS 40-Pin QFN EP 制造商:Linear Technology 功能描述:IC ADC 16BIT 80MSPS 40QFN 制造商:Linear Technology 功能描述:IC ADC 16BIT 80MSPS QFN-40 制造商:Linear Technology 功能描述:IC, ADC, 16BIT, 80MSPS, QFN-40; Resolution (Bits):16bit; Sampling Rate:80MSPS; Supply Voltage Type:Single; Supply Voltage Min:1.7V; Supply Voltage Max:1.9V; Supply Current:49.2mA; Digital IC Case Style:QFN; No. of Pins:40; INL :4LSB;RoHS Compliant: Yes
LTC2259CUJ-16#TRPBF 制造商:Linear Technology 功能描述:ADC Single Pipelined 80Msps 16-bit Parallel/LVDS 40-Pin QFN EP T/R 制造商:Linear Technology 功能描述:IC ADC 16BIT 80MSPS 40QFN
LTC2259CUJ-16PBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:16-Bit, 80Msps Ultralow Power 1.8V ADC
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