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LTC3350
elecTrical characTerisTics
junction temperature range, otherwise specifications are at T
noted.
SYMBOL
PARAMETER
Analog-to-Digital Converter
V
Measurement Resolution
RES
V
General Purpose Input Voltage Range
GPI
I
General Purpose Input Pin Leakage Current
GPI
R
GPI Pin Resistance
GPI
Measurement System Error
V
Measurement Error (Note 5)
ERR
CAP1 to CAP4
R
Shunt Resistance
SHNT
DV
Maximum Capacitor Voltage with Shunts Enabled
CAPMAX
Programming Pins
V
ITST Voltage
ITST
2
I
C/SMBus – SDA, SCL, SMBALERT
I
Input Leakage Low
IL,SDA,SCL
I
Input Leakage High
IH,SDA,SCL
V
Input High Threshold
IH
V
Input Low Threshold
IL
f
SCL Clock Frequency
SCL
t
Low Period of SCL Clock
LOW
t
High Period of SCL Clock
HIGH
t
Bus Free Time Between Start and Stop Conditions
BUF
t
Hold Time, After (Repeated) Start Condition
HD,STA
t
Setup Time After a Repeated Start Condition
SU,STA
6
The
denotes the specifications which apply over the specified operating
l
= 25°C (Note 2). V
A
CONDITIONS
Unbuffered
Buffered
Buffered Input
Buffer Disabled
V
= 0V
IN
V
= 30V
IN
V
= 5V
OUTSP
V
= 30V
OUTSP
V
= 0V
CAP
V
= 10V
CAP
V
= 0V, Unbuffered
GPI
V
= 3.5V, Unbuffered
GPI
V
= 0V
CAP1
V
= 2V
CAP1
V
= 0V
CAP2
V
= 2V
CAP2
V
= 0V
CAP3
V
= 2V
CAP3
V
= 0V
CAP4
V
= 2V
CAP4
V
= 0mV
SNSI
V
= 32mV
SNSI
V
= 0mV
SNSC
V
= 32mV
SNSC
2 or More Capacitors in Stack
R
= 121Ω
TST
For more information
www.linear.com/LTC3350
= V
= 12V, V
= V
IN
OUT
DRVCC
INTVCC
MIN
0
0
1.185
1.197
–1
–1
1.5
1.3
0.6
1.3
0.6
0.6
unless otherwise
TYP
MAX
UNITS
16
Bits
5
V
3.5
V
1
μA
2.5
MΩ
100
mV
1.5
%
100
mV
1.5
%
100
mV
1.5
%
2
mV
1
%
2
mV
1
%
2
mV
1
%
2
mV
1
%
2
mV
1
%
200
µV
2
%
200
µV
2
%
0.5
Ω
3.6
V
1.209
V
1
µA
1
µA
V
0.8
V
400
kHz
µs
µs
µs
µs
µs
3350fc
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