參數(shù)資料
型號： LTC2145IUP-14#TRPBF
廠商： Linear Technology
文件頁數(shù)： 24/38頁
文件大小： 0K
描述： IC ADC DUAL 14BIT 125MSPS 64-QFN
標準包裝： 2,000
位數(shù)： 14
采樣率（每秒）： 125M
數(shù)據接口： 并聯(lián)，串行，SPI
轉換器數(shù)目： 2
功率耗散（最大）： 360mW
電壓電源： 模擬和數(shù)字
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 64-WFQFN 裸露焊盤
供應商設備封裝： 64-QFN（9x9）
包裝： 帶卷 (TR)
輸入數(shù)目和類型： 2 個差分
配用： DC890B-ND - BOARD USB DATA COLLECTION
LTC2145-14/
LTC2144-14/LTC2143-14
30
21454314fa
REGISTER A3: OUTPUT MODE REGISTER (ADDRESS 03h)
D7
D6
D5
D4
D3
D2
D1
D0
X
ILVDS2
ILVDS1
ILVDS0
TERMON
OUTOFF
OUTMODE1
OUTMODE0
Bit 7
Unused, Don’t Care Bit.
Bits 6-4
ILVDS2:ILVDS0 LVDS Output Current Bits
000 = 3.5mA LVDS Output Driver Current
001 = 4.0mA LVDS Output Driver Current
010 = 4.5mA LVDS Output Driver Current
011 = Not Used
100 = 3.0mA LVDS Output Driver Current
101 = 2.5mA LVDS Output Driver Current
110 = 2.1mA LVDS Output Driver Current
111 = 1.75mA LVDS Output Driver Current
Bit 3
TERMON
LVDS Internal Termination Bit
0 = Internal Termination Off
1 = Internal Termination On. LVDS Output Driver Current is 2× the Current Set by ILVDS2:ILVDS0
Bit 2
OUTOFF
Output Disable Bit
0 = Digital Outputs Are Enabled
1 = Digital Outputs Are Disabled and Have High Output Impedance
Note: If the Digital Outputs Are Disabled the Part Should Also Be Put in Sleep or Nap Mode (Both Channels).
Bits 1-0
OUTMODE1:OUTMODE0
Digital Output Mode Control Bits
00 = Full Rate CMOS Output Mode
01 = Double Data Rate LVDS Output Mode
10 = Double Data Rate CMOS Output Mode
11 = Not Used
REGISTER A4: DATA FORMAT REGISTER (ADDRESS 04h)
D7
D6
D5
D4
D3
D2
D1
D0
X
OUTTEST2
OUTTEST1
OUTTEST0
ABP
RAND
TWOSCOMP
Bit 7-6
Unused, Don’t Care Bits.
Bits 5-3
OUTTEST2:OUTTEST0
Digital Output Test Pattern Bits
000 = Digital Output Test Patterns Off
001 = All Digital Outputs = 0
011 = All Digital Outputs = 1
101 = Checkerboard Output Pattern. OF, D13-D0 Alternate Between 1 01 0101 0101 0101 and 0 10 1010 1010 1010
111 = Alternating Output Pattern. OF, D13-D0 Alternate Between 0 00 0000 0000 0000 and 1 11 1111 1111 1111
Note: Other Bit Combinations Are not Used
Bit 2
ABP
Alternate Bit Polarity Mode Control Bit
0 = Alternate Bit Polarity Mode Off
1 = Alternate Bit Polarity Mode On. Forces the Output Format to Be Offset Binary
Bit 1
RAND
Data Output Randomizer Mode Control Bit
0 = Data Output Randomizer Mode Off
1 = Data Output Randomizer Mode On
Bit 0
TWOSCOMP
Two’s Complement Mode Control Bit
0 = Offset Binary Data Format
1 = Two’s Complement Data Format
APPLICATIONS INFORMATION
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