Linear Technology LTC6804-1 - Page 5

LTC6804-1/LTC6804-2
5
680412fc
For more information www.linear.com/LTC6804-1
elecTrical characTerisTics
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Total Measurement Error (TME) in
Filtered Mode
C(n) to C(n – 1), GPIO(n) to V
–
= 0 ±0.1 mV
C(n) to C(n – 1) = 2.0 ±0.1 ±0.8 mV
C(n) to C(n – 1), GPIO(n) to V
–
= 2.0
l
±1.4 mV
C(n) to C(n – 1) = 3.3 ±0.2 ±1.2 mV
C(n) to C(n – 1), GPIO(n) to V
–
= 3.3
l
±2.2 mV
C(n) to C(n – 1) = 4.2 ±0.3 ±1.6 mV
C(n) to C(n – 1), GPIO(n) to V
–
= 4.2
l
±2.8 mV
C(n) to C(n – 1), GPIO(n) to V
–
= 5.0 ±1 mV
Sum of Cells, V(CO) = V
–
l
±0.2 ±0.75 %
Internal Temperature, T = Maximum
Specified Temperature
±5 °C
V
REG
Pin
l
±0.1 ±0.25 %
V
REF2
Pin
l
±0.02 ±0.1 %
Digital Supply Voltage V
REGD
l
±0.1 ±1 %
Total Measurement Error (TME) in
Fast Mode
C(n) to C(n – 1), GPIO(n) to V
–
= 0 ±2 mV
C(n) to C(n – 1), GPIO(n) to V
–
= 2.0
l
±4 mV
C(n) to C(n – 1), GPIO(n) to V
–
= 3.3
l
±4.7 mV
C(n) to C(n – 1), GPIO(n) to V
–
= 4.2
l
±8.3 mV
C(n) to C(n – 1), GPIO(n) to V
–
= 5.0 ±10 mV
Sum of Cells, V(CO) = V
–
l
±0.3 ±1 %
Internal Temperature, T = Maximum
Specified Temperature
±5 °C
V
REG
Pin
l
±0.3 ±1 %
V
REF2
Pin
l
±0.1 ±0.25 %
Digital Supply Voltage V
REGD
l
±0.2 ±2 %
Input Range C(n), n = 1 to 12
l
C(n – 1) C(n – 1) + 5 V
C0
l
0
GPIO(n), n = 1 to 5
l
0 5 V
I
L
Input Leakage Current When Inputs
Are Not Being Measured
C(n), n = 0 to 12
l
10 ±250 nA
GPIO(n), n = 1 to 5
l
10 ±250 nA
Input Current When Inputs Are
Being Measured
C(n), n = 0 to 12 ±2 µA
GPIO(n), n = 1 to 5 ±2 µA
Input Current During Open Wire
Detection
l
70 100 130 µA
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. The test conditions are V
+
= 39.6V, V
REG
= 5.0V unless otherwise noted.