參數(shù)資料
型號: LTC2145IUP-12#PBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: ADC
英文描述: 2-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC64
封裝: 9 X 9 MM, LEAD FREE, PLASTIC, MO-220WNJR-5, QFN-64
文件頁數(shù): 10/36頁
文件大?。?/td> 1014K
代理商: LTC2145IUP-12#PBF
LTC2145-12/
LTC2144-12/LTC2143-12
18
21454312p
FUNCTIONAL BLOCK DIAGRAM
Figure 1. Functional Block Diagram
D1_0_1/D1_0_1+ toD1_10_11/D1_10_11+ (Pins 47/48,
49/50, 51/52, 53/54, 55/56, 57/58): Channel 2 Double
Data Rate Digital Outputs. Two data bits are multiplexed
onto each differential output pair. The even data bits (D0,
D2, D4, D6, D8, D10) appear when CLKOUT+ is low. The
odd data bits (D1, D3, D5, D7, D9, D11) appear when
CLKOUT+ is high.
OF2_1/OF2_1+ (Pins 59/60):
Over/Underflow Digital
Output. OF2_1+ is high when an overflow or underflow
has occurred. The over/under flow for both channels
are multiplexed onto this pin. Channel 2 appears when
CLKOUT+ is low, and Channel 1 appears when CLKOUT+
is high.
DIFF
REF
AMP
REF
BUF
2.2μF
0.1μF
INTERNAL CLOCK SIGNALS
REFH
REFL
CLOCK/DUTY
CYCLE
CONTROL
RANGE
SELECT
1.25V
REFERENCE
ENC+
REFH
REFL
ENC
CORRECTION
LOGIC
SDO
CS
OGND
OF1
OVDD
D1_11
CLKOUT
CLKOUT+
D1_0
21854312 F01
SENSE
VREF
CH 1
ANALOG
INPUT
2.2μF
VCM1
0.1μF
VDD/2
OUTPUT
DRIVERS
MODE
CONTROL
REGISTERS
SCK
PAR/SER
SDI
GND
S/H
12-BIT
ADC CORE
CH 2
ANALOG
INPUT
S/H
12-BIT
ADC CORE
VCM2
0.1μF
OF2
D2_11
D2_0
VDD
PIN FUNCTIONS
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