Datasheet
© 2008 Microchip Technology Inc. DS41249E-page 157
PIC16F785/HV785
TABLE 19-7: COMPARATOR SPECIFICATIONS
TABLE 19-8: COMPARATOR VOLTAGE REFERENCE (CVREF) SPECIFICATIONS
TABLE 19-9: VOLTAGE REFERENCE (VR) SPECIFICATIONS
TABLE 19-10: VOLTAGE REFERENCE OUTPUT (V
REF) BUFFER SPECIFICATIONS
Comparator Specifications
Standard Operating Conditions (unless otherwise stated)
Operating temperature -40°C ≤ T
A ≤ +125°C
Param
No.
Symbol Characteristics Min Typ Max Units Comments
C01 V
OS Input Offset Voltage — ±5 ±10 mV
C02 VCM Input Common Mode Voltage 0 — VDD – 1.5 V
C03 ILC Input Leakage Current — — 200* nA
C04 C
MRR Common Mode Rejection
Ratio
+70* — — dB
C05 T
RT Response Time
(1)
—
—
—
—
20*
40*
ns
ns
Internal
Output to pin
* These parameters are characterized but not tested.
Note 1: Response time measured with one comparator input at (V
DD – 1.5)/2, while the other input transitions from
V
SS to VDD – 1.5V.
Comparator Voltage Reference Specifications
Standard Operating Conditions (unless otherwise stated)
Operating temperature -40°C ≤ T
A ≤ +125°C
Param
No.
Symbol Characteristics Min Typ Max Units Comments
CV01 CV
RES Resolution —
—
VDD/24*
V
DD/32
—
—
LSb
LSb
Low Range (VRR = 1)
High Range (VRR = 0)
CV02 Absolute Accuracy —
—
—
—
±1/4*
±1/2*
LSb
LSb
Low Range (VRR = 1)
High Range (VRR = 0)
CV03 Unit Resistor Value (R) — 2K* — Ω
CV04 Settling Time
(1)
—— 10*μs
* These parameters are characterized but not tested.
Note 1: Settling time measured while VRR = 1 and VR<3:0> transitions from ‘0000’ to ‘1111’.
VR Voltage Reference Specifications
Standard Operating Conditions (unless otherwise stated)
Operating temperature -40°C ≤ T
A ≤ +125°C
Operating Voltage 3.0V ≤ V
DD ≤ 5.5V
Param
No.
Symbol Characteristics Min Typ Max Units Comments
VR01 VROUT VR voltage output 1.188
1.176
1.164
1.200
1.200
1.200
1.212
1.224
1.236
V
V
V
TA = 25°C
0°C ≤ T
A ≤ +85°C
-40°C ≤ T
A ≤ +125°C
Voltage Reference Output Buffer
Specifications
Standard Operating Conditions (unless otherwise stated)
Operating temperature -40°C ≤ T
A ≤ +125°C
Operating voltage 3.0V ≤ V
DD ≤ 5.5V
Param
No.
Symbol Characteristics Min Typ Max Units Comments
VB01* CL External capacitor load — — 200 pF
* These parameters are characterized but not tested.