LTC2420IS8 Linear Technology, LTC2420IS8 Datasheet - Page 17

• Manufacturer Part Number: LTC2420IS8
• Description: IC ADC 20BIT MICROPOWER 8SOIC
• Manufacturer: Linear Technology

Specifications of LTC2420IS8

• Number Of Bits: 20
• Sampling Rate (per Second): 7.5
• Data Interface: MICROWIRE™, Serial, SPI™
• Number Of Converters: 2
• Power Dissipation (max): 1mW
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

APPLICATIO S I FOR ATIO
(EXTERNAL)
SDO
SCK
CS
(EXTERNAL)
CONVERSION
SDO
SCK
CS
SLEEP
U
BIT 0
EOC
SLEEP
U
CONVERSION
Hi-Z
DATA OUTPUT
TEST EOC
Figure 7. External Serial Clock, Reduced Data Output Length
W
Hi-Z
BIT 23
EOC
TEST EOC
Figure 8. External Serial Clock, CS = 0 Operation
–0.12V
SLEEP
BIT 22
–0.12V
Hi-Z
REF
REF
U
0.1V TO V
TO 1.12V
TO 1.12V
0.1V TO V
BIT 21
SIG
BIT 23
EOC
1 F
2.7V TO 5.5V
1 F
2.7V TO 5.5V
V
V
REF
REF
V
REF
V
REF
CC
IN
CC
IN
BIT 20
EXR
BIT 22
DATA OUTPUT
V
V
V
GND
V
V
V
GND
CC
REF
IN
CC
REF
IN
LTC2420
LTC2420
BIT 19
MSB
BIT 21
SDO
SCK
SIG
SDO
SCK
CS
F
CS
F
O
O
DATA OUTPUT
BIT 18
BIT 20
EXR
V
V
CC
CC
BIT 19
= 50Hz REJECTION
= EXTERNAL OSCILLATOR
= 60Hz REJECTION
MSB
= 50Hz REJECTION
= EXTERNAL OSCILLATOR
= 60Hz REJECTION
BIT 9
BIT 4
BIT 8
Hi-Z
CONVERSION
BIT 0
LSB
LTC2420
20
TEST EOC
2420 F07
CONVERSION
17
2420 F07