ISL6295 Datasheet, PDF (3/25 Pages) Intersil Corporation – Low Voltage Fuel Gauge

ISL6295
Electrical Specifications Typical Values Are Tested at V_P = 5V and ambient temperature is at 25°C, All Maximum and Minimum Values
Are Guaranteed Under the Recommended Operating Conditions., Unless Otherwise Noted. (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX UNITS
A/D CONVERTER CHARACTERISTICS (T_A = -20°C to +85°C; V_P = 3.0V to 7.0V, Note 3, 4)
A/D Converter Resolution
N
Magnitude only (Note 5)
8
15
bits
A/D Conversion Measurement Time
tconv
N-bit + sign
2^(N+1)/f_A/D
s
A/D Converter Input Voltage Range
(internal)
VADIN
Differential
Single-Ended
-152
0
+152
mV
309
mV
Internal Temperature Accuracy
Calibrated Voltage Measurement
Gain Error
T_ACC
-3
EVGAIN
Max deviation over supply voltage
and temperature range (assumed
ideal under the calibration condition)
3
°K
0.60
%
Calibrated Current Measurement
Gain Error (with ideal ZTC current
sense resistor)
EIGAIN
Max deviation over supply voltage
and temperature range (assumed
ideal under the calibration condition)
0.50
%
Calibrated Temperature Measurement
Gain Error (internal sensor)
ETEMP
Max deviation over supply voltage
and temperature range (assumed
ideal under the calibration condition)
0.60
%
Calibrated ADC Offset Error
EVOFFSET
Max deviation over supply voltage
and temperature range (assumed
ideal under the calibration condition)
V_REF = 170mV
0.30
%
V_REF = 340mV
0.15
%
Integrated Nonlinearity Error
EINL
0.01
%
NOTES:
1. Does not include current consumption due to external loading on pins. No EEPROM access.
2. Sample mode current is specified during an A/D inactive cycle. Sample mode average current can be calculated using the formula: Average
Sample Mode Supply Current = (IDDRUN + (n-1)*IDDINS)/Ns; where Ns is the programmed sample rate.
3. Guaranteed by characterization or correlation to other test.
4. The max calibrated gain and offset errors are based on a 15-bit calibration procedure to generate the calibration factors. These calibration
factors are then applied to correct the ADC results.
5. Voltage is internal at A/D converter inputs. VSR is measured directly. VP and GPAD inputs are measured using internal level-translation circuitry
that scales the input voltage range appropriately for the converter.
3
FN9074.0
October 25, 2005