LTC2173CUKG-12#PBF Linear Technology, LTC2173CUKG-12#PBF Datasheet - Page 18

• Manufacturer Part Number: LTC2173CUKG-12#PBF
• Description: IC ADC 12BIT SER 80MSPS 52-QFN
• Manufacturer: Linear Technology

Specifications of LTC2173CUKG-12#PBF

• Number Of Bits: 12
• Sampling Rate (per Second): 80M
• Data Interface: Serial, SPI™
• Number Of Converters: 4
• Power Dissipation (max): 446mW
• Voltage Supply Source: Single Supply
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 52-WFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

LTC2175-12/
LTC2174-12/LTC2173-12
FUNCTIONAL BLOCK DIAGRAM
18
1μF
V
SENSE
CHANNEL 1
ANALOG INPUT
CHANNEL 1
ANALOG INPUT
CHANNEL 2
ANALOG INPUT
CHANNEL 2
ANALOG INPUT
CHANNEL 3
ANALOG INPUT
CHANNEL 3
ANALOG INPUT
CHANNEL 4
ANALOG INPUT
CHANNEL 4
ANALOG INPUT
REF
+
–
+
–
+
–
+
–
REFERENCE
SELECT
RANGE
1.25V
S/H
S/H
S/H
S/H
GND
BUF
REF
ADC CORE
ADC CORE
ADC CORE
ADC CORE
12-BIT
12-BIT
12-BIT
12-BIT
1.8V
Figure 1. Functional Block Diagram
AMP
DIFF
V
REF
DD
0.1μF
REFH
REFH
0.1μF
2.2μF
REFL
REFL
0.1μF
V
DD
ENC
VCM12
/2
0.1μF
+
PLL
VCM34
ENC
0.1μF
–
PAR/SER
SERIALIZER
DATA
1.8V
REGISTERS
CS
CONTROL
MODE
OV
DD
SCK
SDI
CLOCK OUT
CLOCK OUT
FRAME
OUT1A
OUT1B
OUT2A
OUT2B
OUT2B
OUT3A
OUT3B
OUT3B
OUT4A
OUT4B
OUT4B
OUT1A
OUT1B
OUT2A
OUT3A
OUT4A
FRAME
SDO
OGND
DATA
DATA
217512 F01
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
21754312f