參數資料
型號： LTC2152IUJ-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
文件頁數： 11/32頁
文件大?。?/td> 790K
代理商： LTC2152IUJ-14#PBF
19
21521014f
LTC2152-14/
LTC2151-14/LTC2150-14
CONVERTER OPERATION
The LTC2152-14/LTC2151-14/LTC2150-14 are 14-bit
250Msps/210Msps/170Msps A/D converters that
are powered by a single 1.8V supply. The analog
inputs must be driven differentially. The encode in-
puts should be driven differentially for optimal per-
formance. The digital outputs are double-data rate
LVDS. Additional features can be chosen by programming
the mode control registers through a serial SPI port.
ANALOG INPUT
The analog input is a differential CMOS sample-and-hold
circuit (Figure 2). It must be driven differentially around a
common mode voltage set by the VCM output pin, which
is nominally 0.8V. The inputs should swing from VCM –
0.375V to VCM + 0.375V. There should be a 180° phase
difference between the inputs.
INPUT DRIVE CIRCUITS
Input Filtering
If possible, there should be an RC lowpass filter right at
the analog inputs. This lowpass filter isolates the drive
circuitryfromtheA/Dsample-and-holdswitching,andalso
limits wide band noise from the drive circuitry. Figure 3
shows an example of an input RC filter. The RC component
values should be chosen based on the application’s input
frequency.
Transformer-Coupled Circuits
Figure 3 shows the analog input being driven by an RF
transformer with the common mode supplied through a
pair of resistors via the VCM pin.
At higher input frequencies a transmission line balun
transformer (Figures 4 and 5) has better balance, resulting
in lower A/D distortion.
2pF
RON
20
RON
20
VDD
LTC2152-14
AIN+
21521014 F02
2pF
VDD
AIN–
ENC–
ENC+
2pF
1.2V
5
10k
5
25
4.7
10
0.1F
10pF
0.1F
LTC2152-14
IN
0.1F
T1
1:1
T1: MACOM ETC1-1T
21521014 F03
AIN+
AIN–
VCM
Figure 2. Equivalent Input Circuit for Differential Input Clock
Figure 3. Analog Input Circuit Using a Transformer.
Recommended for Input Frequencies from 5MHz to 70MHz
applicaTions inForMaTion
Figure 4. Recommended Front-End Circuit for
Input Frequencies from 15MHz to 150MHz
10
0.1F
IN
0.1F
T2
WBC1-1L
1:1
T1
MABA
007159-
000000
21521014 F04
LTC2152-14
AIN+
AIN–
VCM
45
100
4.7
相關PDF資料
PDF描述
LTC2150IUJ-14#PBF 1-CH 14-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC40
LTC2151CUP-14#PBF 1-CH 14-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC40
LTC2151IUP-14#PBF 1-CH 14-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC40
LTC2151IUP-14#TRPBF 1-CH 14-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC40
LTC2150IUP-14#PBF 1-CH 14-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC40
相關代理商/技術參數
參數描述
LTC2152IUP-14PBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:14-Bit 250Msps/ 210Msps/170Msps ADCs
LTC2153-14 制造商:LINER 制造商全稱:Linear Technology 功能描述:300MHz to 4GHz Active Downconverting Mixer
LTC2153CUJ-14#PBF 功能描述:IC ADC 14BIT DUAL 310MSPS 40QFN RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:250 系列:- 位數:12 采樣率（每秒）:1.8M 數據接口:并聯(lián) 轉換器數目:1 功率耗散（最大）:1.82W 電壓電源:模擬和數字 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-LQFP 供應商設備封裝:48-LQFP（7x7） 包裝:管件 輸入數目和類型:2 個單端，單極
LTC2153CUJ-14#TRPBF 功能描述:IC ADC 14BIT DUAL 310MSPS 40QFN RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:250 系列:- 位數:12 采樣率（每秒）:1.8M 數據接口:并聯(lián) 轉換器數目:1 功率耗散（最大）:1.82W 電壓電源:模擬和數字 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-LQFP 供應商設備封裝:48-LQFP（7x7） 包裝:管件 輸入數目和類型:2 個單端，單極
LTC2153IUJ-12#PBF 制造商:Linear Technology 功能描述:IC ADC 12BIT DUAL 310MSPS 制造商:Linear Technology 功能描述:MS-ADC/High Speed, 12-bit, 310Msps, 1.8V ADC, DDR LVDS Outputs
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