LTC2145-12_15 Datasheet, PDF (2/38 Pages) Linear Technology – 12-Bit, 125Msps/105Msps/ 80Msps Low Power Dual ADCs

LTC2145-12/
LTC2144-12/LTC2143-12
ABSOLUTE MAXIMUM RATINGS (Notes 1, 2)
Supply Voltages (V_DD, OV_DD)....................... –0.3V to 2V
Analog Input Voltage (A_IN+, A_IN–,
PAR/SER, SENSE) (Note 3).......... –0.3V to (V_DD + 0.2V)
Digital Input Voltage (ENC⁺, ENC^–, CS,
SDI, SCK) (Note 4).................................... –0.3V to 3.9V
SDO (Note 4) ............................................ –0.3V to 3.9V
Digital Output Voltage ................ –0.3V to (OV_DD + 0.3V)
Operating Temperature Range
LTC2145C, LTC2144C, LTC2143C............. 0°C to 70°C
LTC2145I, LTC2144I, LTC2143I............ –40°C to 85°C
Storage Temperature Range................... –65°C to 150°C
PIN CONFIGURATIONS
FULL RATE CMOS OUTPUT MODE
TOP VIEW
DOUBLE DATA RATE CMOS OUTPUT MODE
TOP VIEW
V_DD 1
V_CM1 2
GND 3
A_IN1+ 4
A_IN1– 5
GND 6
48 D1_1
47 D1_0
46 DNC*
45 DNC*
44 DNC*
43 DNC*
V_DD 1
V_CM1 2
GND 3
A_IN1+ 4
A_IN1– 5
GND 6
48 D1_0_1
47 DNC
46 DNC*
45 DNC*
44 DNC*
43 DNC*
REFH 7
42 OV_DD
REFH 7
42 OV_DD
REFL 8
65
41 OGND
REFL 8
65
41 OGND
REFH 9
GND
40 CLKOUT⁺
REFH 9
GND
40 CLKOUT⁺
REFL 10
39 CLKOUT^–
REFL 10
39 CLKOUT^–
PAR/SER 11
38 D2_11
PAR/SER 11
38 D2_10_11
A_IN2+ 12
A_IN2– 13
37 D2_10
36 D2_9
A_IN2+ 12
A_IN2– 13
37 DNC
36 D2_8_9
GND 14
35 D2_8
GND 14
35 DNC
V_CM2 15
V_DD 16
34 D2_7
33 D2_6
V_CM2 15
V_DD 16
34 D2_6_7
33 DNC
UP PACKAGE
64-LEAD (9mm × 9mm) PLASTIC QFN
T_JMAX = 150°C, θ_JA = 20°C/W
EXPOSED PAD (PIN 65) IS GND, MUST BE SOLDERED TO PCB
UP PACKAGE
64-LEAD (9mm × 9mm) PLASTIC QFN
T_JMAX = 150°C, θ_JA = 20°C/W
EXPOSED PAD (PIN 65) IS GND, MUST BE SOLDERED TO PCB
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