E0C6274
Reference voltage generation circuit
(Unless otherwise specified: VDD=VDDA=3.0V, VSS=VSSA=0V, fOSC1=32.768kHz, Ta=25°C, CG=25pF, VD1/VC1–VC3 are internal voltage, C1–C6=0.1µF)
Characteristic
Output voltage (1)
Symbol
Condition
GND reference, Internal adjustment mode
VRON = VRAON = "1"
GND reference, Internal adjustment mode
VRON = VRAON = "1"
Min.
Typ.
-475
Max.
Unit
mV
V
V
V
R1O
R2O
R1I
Output voltage (2)
Input voltage
-1.0
(-163.8mV
)
1.0
%
GND reference, External adjustment mode
-475
mV
VRON = VRAON = "0", (Input voltage when the
measurement error becomes minimum)
External adjustment mode
A/D related are all OFF.
VRON = VRAON = "0"
Input current
I
VR1
0
1.0
µA
ppm/°C
%FS
µA
Current that flows in external parts is not included.
Temperature characteristics VR2/Ta Ta = 0 to 50°C
Internal adjustment mode
VRAON = "1"
-300
-300
-0.30
-0.15
150
150
0
600
600
0.30
0.15
30.0
5.0
(25°C standard)
VRON = "1"
External adjustment mode
VRAON = "0"
Supply voltage
characteristics
VR2/VDDA
V
DDA = 2.4 to 5.5 V
Internal adjustment mode
VRAON = "1"
VRON = "1"
External adjustment mode
VRAON = "0"
0
Power current consumption
I
I
AD1
AD2
Internal adjustment mode
VRON = VRAON = "1"
External adjustment mode
VRON = "1", VRAON = "0"
10.0
2.0
Error, deviation and power current consumption by external parts are not included.
Middle electric potential (GND) generation circuit
(Unless otherwise specified: VDD=VDDA=3.0V, VSS=VSSA=0V, fOSC1=32.768kHz, Ta=25°C, CG=25pF, VD1/VC1–VC3 are internal voltage, C1–C6=0.1µF)
Characteristic
Output voltage
Symbol
Condition
Min.
VDDA/2
-0.05
VDDA/2
-0.05
0
Typ.
VDDA/2
Max.
VDDA/2
+0.05
VDDA/2
+0.05
1.0
Unit
V
GNDO GNDON = "01, 10, 11"
Input voltage
GNDI
IGND
IOH
GNDON = "00"
VDDA/2
V
µA
Input current
GNDON = "00", A/D related are all OFF.
Current that flows in external parts is not included.
GNDON = "01, 10, 11"
VOH = GND - 10 mV
High level output current
-100
µA
Low level output current (1) IOL1
Low level output current (2) IOL2
Low level output current (3) IOL3
GNDON = "01"
VOL1 = GND + 10 mV
GNDON = "10"
VOL2 = GND + 10 mV
GNDON = "11"
VOL3 = GND + 10 mV
10.0
20.0
40.0
-30
µA
µA
µA
Temperature characteristics GND/Ta Ta = 0 to 50°C (25°C standard)
30
ppm/°C
mV/V
µA
GNDON = "01, 10, 11"
Supply voltage
characteristics
GND/VDDA VDDA = 2.4 to 5.5 V
GNDON = "01, 10, 11"
0.5
10.0
Power current consumption IGND1
GNDON = "01"
GNDON = "10"
GNDON = "11"
125
250
500
500
1000
2000
IGND2
IGND3
GNDON is mark of GNDON1 or GNDON0.
8
SEIKO [ SEIKO EPSON CORPORATION ]
