Datasheet

–4–
ADuC836
ADuC836
–5–
Parameter ADuC836 Test Conditions/Comments Unit
TRANSDUCER BURNOUT CURRENT SOURCES
AIN+ Current –100 AIN+ Is the Selected Positive Input nA typ
to the Primary ADC
AIN– Current +100 AIN– Is the Selected Negative Input nA typ
to the Auxiliary ADC
Initial Tolerance @ 25°C ±10 % typ
Drift 0.03 %/°C typ
EXCITATION CURRENT SOURCES
Output Current –200 Available from Each Current Source A typ
Initial Tolerance @ 25°C ±10 % typ
Drift 200 ppm/°C typ
Initial Current Matching @ 25°C ±1 Matching between Both Current Sources % typ
Drift Matching 20 ppm/°C typ
Line Regulation (AV
DD
) 1 AV
DD
= 5 V + 5% A/V typ
Load Regulation 0.1 A/V typ
Output Compliance
2
AV
DD
– 0.6 V max
AGND V min
LOGIC INPUTS
All Inputs Except SCLOCK, RESET,
and XTAL1
2
V
INL
, Input Low Voltage 0.8 DV
DD
= 5 V V max
0.4 DV
DD
= 3 V V max
V
INH
, Input High Voltage 2.0 V min
SCLOCK and RESET Only
(Schmitt-Triggered Inputs)
2
V
T+
1.3/3 DV
DD
= 5 V V min/V max
0.95/2.5 DV
DD
= 3 V V min/V max
V
T–
0.8/1.4 DV
DD
= 5 V V min/V max
0.4/1.1 DV
DD
= 3 V V min/V max
V
T+ –
V
T–
0.3/0.85 DV
DD
= 5 V V min/V max
0.3/0.85 DV
DD
= 3 V V min/V max
Input Currents
Port 0, P1.2–P1.7, EA ±10 V
IN
= 0 V or V
DD
A max
SCLOCK, MOSI, MISO, SS
13
–10 min, –40 max V
IN
= 0 V, DV
DD
= 5 V, Internal Pull-Up A min/A max
±10 V
IN
= V
DD
, DV
DD
= 5 V A max
RESET ±10 V
IN
= 0 V, DV
DD
= 5 V A max
35 min, 105 max V
IN
= V
DD
, DV
DD
= 5 V, A min/A max
Internal Pull-Down
P1.0, P1.1, Ports 2 and 3 ±10 V
IN
= V
DD
, DV
DD
= 5 V A max
–180 V
IN
= 2 V, DV
DD
= 5 V A min
–660 A max
–20 V
IN
= 450 mV, DV
DD
= 5 V A min
–75 A max
Input Capacitance 5 All Digital Inputs pF typ
CRYSTAL OSCILLATOR (XTAL1 AND XTAL2)
Logic Inputs, XTAL1 Only
2
V
INL
, Input Low Voltage 0.8 DV
DD
= 5 V V max
0.4 DV
DD
= 3 V V max
V
INH
, Input High Voltage 3.5 DV
DD
= 5 V V min
2.5 DV
DD
= 3 V V min
XTAL1 Input Capacitance 18 pF typ
XTAL2 Output Capacitance 18 pF typ
REV. A
REV. A