LTC2140-12_15 Datasheet, PDF (35/38 Pages) Linear Technology – 12-Bit, 65Msps/ 40Msps/25Msps Low Power Dual ADCs

TYPICAL APPLICATIONS
LTC2142-12/
LTC2141-12/LTC2140-12
C15
0.1μF
C21
0.1μF
SDO
C23
2.2μF
V_DD
C19
C20 0.1μF
0.1μF
SENSE
C17
1μF
A_IN1+
A_IN1–
–+
+–
CN1
–+
+–
PAR/SER
A_IN2+
A_IN2–
V_DD
1 _VDD
2 _VCM1
3 _GND
4 _AIN1+
5 _AIN1–
6 _GND
7 _REFH
8 _REFL
9 _REFH
10 _REFL
11 _PAR/SER
12 _AIN2+
13 _AIN2–
14 _GND
15 _VCM2
16 _VDD
C67
0.1μF
C18
0.1μF
21821012 TA02
C78
0.1μF
C79
0.1μF
R51
100Ω
ENCODE
CLOCK
LTC2142-12
D1_0_1^{+ 48}
D1_0_1^{– 47}
DNC ⁴⁶
DNC ⁴⁵
DNC ⁴⁴
DNC ⁴³
OV_DD ⁴²
OGND ⁴¹
CLKOUT^{+ 40}
CLKOUT^{– 39}
D2_10_11^{+ 38}
D2_10_11^{– 37}
D2_8_9^{+ 36}
D2_8_9^{– 35}
D2_6_7^{+ 34}
D2_6_7^{– 33}
PAD ⁶⁵
DIGITAL
OUTPUTS
C37 ^OVDD
0.1μF
DIGITAL
OUTPUTS
SPI BUS
LTC2142 Schematic
21421012fa
35