參數(shù)資料
型號： LTC2259CUJ-16#PBF
廠商： LINEAR TECHNOLOGY CORP
元件分類： ADC
英文描述： PROPRIETARY METHOD ADC, PQCC40
封裝： 6 X 6 MM, LEAD FREE, PLASTIC, QFN-40
文件頁數(shù)： 5/28頁
文件大?。?/td> 318K
代理商： LTC2259CUJ-16#PBF
13
225916f
LTC2259-16
FUNCTIONAL BLOCK DIAGRAM
Figure 1. Functional Block Diagram
CONVERTER OPERATION
The LTC2259-16 is a low power 16-bit 80Msps A/D
converter that is powered by a single 1.8V supply. The
analog inputs should be driven differentially. The encode
input can be driven differentially, or single ended for lower
power consumption. The digital outputs can be CMOS,
double-data rate CMOS (to halve the number of output
lines), or double-data rate LVDS (to reduce digital noise
in the system.) Many additional features can be chosen by
programming the mode control registers through a serial
SPI port. See the Serial Programming Mode section.
ANALOG INPUT
The analog input is a differential CMOS sample-and-hold
circuit (Figure 2). The inputs should be driven differentially
around a common mode voltage set by the VCM output
pin, which is nominally VDD/2. For the 2V input range, the
inputs should swing from VCM – 0.5V to VCM + 0.5V. There
should be 180° phase difference between the inputs.
CSAMPLE
3.5pF
RON
25Ω
RON
25Ω
VDD
LTC2259-16
AIN
+
225916 F02
CSAMPLE
3.5pF
VDD
AIN
–
ENC–
ENC+
1.2V
10k
1.2V
10k
CPARASITIC
1.8pF
CPARASITIC
1.8pF
10Ω
Figure 2. Equivalent Input Circuit
APPLICATIONS INFORMATION
DIFF
REF
AMP
REF
BUF
2.2μF
0.1μF
INTERNAL CLOCK SIGNALS
REFH
REFL
CLOCK/DUTY
CYCLE
CONTROL
RANGE
SELECT
1.25V
REFERENCE
FIRST PIPELINED
ADC STAGE
FIFTH PIPELINED
ADC STAGE
FOURTH PIPELINED
ADC STAGE
SECOND PIPELINED
ADC STAGE
ENC+
REFH
REFL
ENC–
SHIFT REGISTER
AND CORRECTION
SDO
CS
OGND
OVDD
D15
CLKOUT–
CLKOUT+
D0
225916 F01
INPUT
S/H
SENSE
VREF
AIN
–
AIN
+
1μF
VCM
0.1μF
VDD/2
THIRD PIPELINED
ADC STAGE
OUTPUT
DRIVERS
MODE
CONTROL
REGISTERS
SCK
PAR/SER
SDI
VDD
GND
相關(guān)PDF資料
PDF描述
LTC2259IUJ-16#PBF PROPRIETARY METHOD ADC, PQCC40
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LTC2259IUJ-12#TRPBF 1-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC40
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC2259CUJ-16TRPBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:16-Bit, 80Msps Ultralow Power 1.8V ADC
LTC2259IUJ-12#PBF 功能描述:IC ADC 12-BIT 80MSPS 40-QFN RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 位數(shù):14 采樣率（每秒）:83k 數(shù)據(jù)接口:串行，并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:95mW 電壓電源:雙 ± 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:28-DIP（0.600"，15.24mm） 供應(yīng)商設(shè)備封裝:28-PDIP 包裝:管件 輸入數(shù)目和類型:1 個單端，雙極
LTC2259IUJ-12#TRPBF 功能描述:IC ADC 12BIT 80MSPS 40-QFN RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 位數(shù):14 采樣率（每秒）:83k 數(shù)據(jù)接口:串行，并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:95mW 電壓電源:雙 ± 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:28-DIP（0.600"，15.24mm） 供應(yīng)商設(shè)備封裝:28-PDIP 包裝:管件 輸入數(shù)目和類型:1 個單端，雙極
LTC2259IUJ-12-PBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:12-Bit, 125/105/80Msps Ultralow Power 1.8V ADCs
LTC2259IUJ-12-TRPBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:12-Bit, 125/105/80Msps Ultralow Power 1.8V ADCs
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