Datasheet
PIC14000
DS40122B-page 123
Preliminary
1996 Microchip Technology Inc.
14.0 ANALOG SPECIFICATIONS: PIC14000-04 (COMMERCIAL, INDUSTRIAL)
Standard Operating Conditions (unless otherwise stated)
Operating Temperature: -40
°
C
≤
TA
≤
+85
°
C for industrial
0
°
C
≤
TA
≤
+70
°
C for commercial
V
DD
range: 2.7V (min) to 6.0V (max) unless otherwise stated.
Characteristic Sym. Min. Typ. Max. Units Conditions Notes
Bandgap Voltage Reference
Output Voltage vo(vref) 1.14 1.19 1.24 V
Turn-on Settling Time to < 0.1% ton(vref) — 1 10 ms REFOFF bit in SLPCON
register
→
0
1
Temperature Coefficient tc(vref) —
±
50 — ppm/
°
C Measured from 25
°
C to
-40
°
C, +85
°
C
1
Temperature Coefficient tc(vref) —
±
20 — ppm/
°
C Measured from 25
°
C to
0
°
C, +70
°
C
1
Supply Sensitivity ss(vref) — 0.04 — %
/
V From VDDmin to VDDmax 1
Operating Current (on) idd(vref) — 20 30
µ
A REFOFF = 0 2
Operating Current (off) idd(vref) — 0 —
µ
A REFOFF = 1 2
Programmable Current Source
Output Current io(cdac) CDAC pin = 0V 3
18.75 33.75 48.75
µ
A ADCON1<7:4> = 1111b
(full-scale)
1.25 2.25 3.25
µ
A ADCON1<7:4> = 0001b
(1 LSB)
-0.5 0 0.5
µ
A ADCON1<7:4> = 0000b
(zero-scale)
Resolution res(cdac) 1.25 2.25 3.25
µ
A 1 LSB
Relative accuracy (linearity
error)
racc(cdac) -1/2 +1/2 lsb CDAC = 0V
Turn-on Settling Time to < 0.1%
(reference start-up)
ton(cdac) — 1 10 ms Bias generator (reference) turn-on
time
(REFOFF 1
→
0)
1
Turn-on Settling Time to < 0.1%
(reference already on and
stable)
ton(cdac) — 1 10
µ
s REFOFF = 0 (constant),
ADCON1<7:4> 0000b
→
1111b
1
Temperature Coefficient tc(cdac) —
±
0.1 — %/
°
C Measured from 25
°
C to Tmin, Tmax 1
Supply Sensitivity ss(cdac) — 0.2 — %
/
V From VDDmin to VDDmax 1
Output Voltage Sensitivity vs(cdac) -0.1 -0.01 – %
/
V CDAC pin voltage = 0V to VDD -
1.4V
Output Voltage Range vo(cdac) 0 — VDD-1.4 V
Operating Current (A/D on) idd(cdac) — 50 70
µ
A ADCON1<7:4> = 1111b 2
Operating Current (A/D off) idd(cdac) — 0 —
µ
A REFOFF = 1, ADOFF = 1 2
Temperature Sensor
Output Voltage vo(temp) 0.92 1.05 1.18 V TA = 25
°
C
Supply Sensitivity ss(temp) — 0.2 — %
/
V From VDDmin to VDDmax 1
Temperature Coefficient K
TC
3.2 3.65 4.1 mV/
°
C Measured from 25
°
C to Tmax.
Includes
±
2
°
C temperature
calibration tolerance
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