User's Manual

DOC No: ZB7412-00A-DTS-R03
____________________________________________________________________________________
Copyright © JORJIN TECHNOLOGIES INC. 2017 23
http://WWW.JORJIN.COM.TW
Current consumption
VDDS as reference
0.75
mA
Reference voltage
Equivalent fixed internal reference (input voltage
scaling enabled). For best accuracy, the ADC
conversion should be initiated through the
TI-RTOS™ API to include the gain or offset
compensation factors stored in FCFG1.
4.3
(2)(4)
V
Reference voltage
Fixed internal reference (input voltage scaling
disabled). For best accuracy, the ADC conversion
should be initiated through the TI-RTOS API to
include the gain or offset compensation factors
stored in FCFG1. This value is derived from the
scaled value (4.3 V) as follows: Vref = 4.3 V × 1408
/ 4095
1.48
V
Reference voltage
VDDS as reference (Also known as RELATIVE) (input
voltage scaling enabled)
VDDS
V
Reference voltage
VDDS as reference (Also known as RELATIVE) (input
voltage scaling disabled)
VDDS/
2.82
(4)
V
Input Impedance
200 ksps, voltage scaling enabled. Capacitive input,
Input impedance depends on sampling frequency
and sampling time
>1
MΩ
(1) Using IEEE Std 1241™-2010 for terminology and test methods.
(2) Input signal scaled down internally before conversion, as if voltage range was 0 to 4.3 V.
(3) No missing codes. Positive DNL typically varies from +0.3 to +3.5, depending on device
(4) Applied voltage must be within absolute maximum ratings (Section 4.1) at all times.
4.19. Temperature Sensor
Tc = 25°C, VDDS = 3.0 V, unless otherwise noted.
Parameter
Test Conditions
Min
Typ
Max
Units
Resolution
4
°C
Range
-40
+85
°C
Accuracy
±5
°C
Supply voltage coefficient
(1)
3.2
°C /V
(1) Automatically compensated when using supplied driver libraries.