LTC1857/LTC1858/LTC1859
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Supply Voltage (OVDD = DVDD = AVDD = VDD)..............6V
Ground Voltage Difference
DGND, AGND1, AGND2, AGND3.........................±0.3V
Analog Input Voltage
ADC+, ADC–
(Note 3).................. (AGND1 – 0.3V) to (AVDD + 0.3V)
CH0-CH7, COM ...................................................±25V
Digital Input Voltage (Note 4)........(DGND – 0.3V) to 10V
Digital Output Voltage...(DGND – 0.3V) to (DVDD + 0.3V)
Power Dissipation................................................500mW
Operating Temperature Range
LTC1857C/LTC1858C/LTC1859C............... 0°C to 70°C
LTC1857I/LTC1858I/LTC1859I............... –40°C to 85°C
Storage Temperature Range.................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec)................... 300°C
PIN CONFIGURATION
TOP VIEW
COM 1
CH0 2
CH1 3
CH2 4
CH3 5
CH4 6
CH5 7
CH6 8
CH7 9
MUXOUT+ 10
MUXOUT– 11
ADC+ 12
ADC– 13
AGND1 14
28 CONVST
27 RD
26 SCK
25 SDI
24 DGND
23 SDO
22 BUSY
21 OVDD
20 DVDD
19 AVDD
18 AGND3
17 AGND2
16 REFCOMP
15 VREF
G PACKAGE
28-LEAD PLASTIC SSOP
TJMAX = 110°C, θJA = 95°C/W
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
LTC1857CG#PBF
LTC1857CG#TRPBF
LTC1857CG
28-Lead Plastic SSOP
LTC1857IG#PBF
LTC1857IG#TRPBF
LTC1857IG
28-Lead Plastic SSOP
LTC1858CG#PBF
LTC1858CG#TRPBF
LTC1858CG
28-Lead Plastic SSOP
LTC1858IG#PBF
LTC1858IG#TRPBF
LTC1858IG
28-Lead Plastic SSOP
LTC1859CG#PBF
LTC1859CG#TRPBF
LTC1859CG
28-Lead Plastic SSOP
LTC1859IG#PBF
LTC1859IG#TRPBF
LTC1859IG
28-Lead Plastic SSOP
Consult LTC Marketing for parts specified with wider operating temperature ranges.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
TEMPERATURE RANGE
0°C to 70°C
–40°C to 85°C
0°C to 70°C
–40°C to 85°C
0°C to 70°C
–40°C to 85°C
185789fb
2
For more information www.linear.com/LTC1857