Datasheet

MCP6031/2/3/4
DS22041B-page 2 © 2008 Microchip Technology Inc.
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings †
V
DD
– V
SS
........................................................................7.0V
Current at Input Pins .....................................................±2 mA
Analog Inputs (V
IN
+, V
IN
-)†† .......... V
SS
– 1.0V to V
DD
+ 1.0V
All Other Inputs and Outputs ......... V
SS
– 0.3V to V
DD
+ 0.3V
Difference Input Voltage ...................................... |V
DD
– V
SS
|
Output Short-Circuit Current .................................continuous
Current at Output and Supply Pins ............................±30 mA
Storage Temperature.....................................-65°C to +150°C
Maximum Junction Temperature (T
J
)..........................+150°C
ESD protection on all pins (HBM; MM) ................ ≥ 4 kV; 400V
† Notice: Stresses above those listed under “Absolute
Maximum Ratings” may cause permanent damage to
the device. This is a stress rating only and functional
operation of the device at those or any other conditions
above those indicated in the operational listings of this
specification is not implied. Exposure to maximum rat-
ing conditions for extended periods may affect device
reliability.
†† See 4.1.2 “Input Voltage And Current Limits”
DC ELECTRICAL SPECIFICATIONS
Electrical Characteristics: Unless otherwise indicated, V
DD
= +1.8V to +5.5V, V
SS
=GND, T
A
= +25°C, V
CM
= V
DD
/2,
V
OUT
≈ V
DD
/2, V
L
= V
DD
/2, R
L
= 1 MΩ to V
L
and CS is tied low. (Refer to Figure 1-2 and Figure 1-3).
Parameters Sym Min Typ Max Units Conditions
Input Offset
Input Offset Voltage V
OS
-150 — +150 µV V
DD
= 3.0V, V
CM
= V
DD
/3
Input Offset Drift with Temperature ΔV
OS
/ΔT
A
— ±3.0 — µV/°C T
A
= -40°C to +125°C,
V
DD
= 3.0V, V
CM
= V
DD
/3
Power Supply Rejection Ratio PSRR 70 88 — dB V
CM
= V
SS
Input Bias Current and Impedance
Input Bias Current I
B
— ±1.0 100 pA
I
B
—60 —pAT
A
= +85°C
I
B
— 2000 5000 pA T
A
= +125°C
Input Offset Current I
OS
— ±1.0 — pA
Common Mode Input Impedance Z
CM
—10
13
||6 — Ω||pF
Differential Input Impedance Z
DIFF
—10
13
||6 — Ω||pF
Common Mode
Common Mode Input Voltage
Range
V
CMR
V
SS
− 0.3 — V
DD
+ 0.3 V
Common Mode Rejection Ratio CMRR 70 95 — dB V
CM
= -0.3V to 2.1V,
V
DD
= 1.8V
72 93 — dB V
CM
= -0.3V to 5.8V,
V
DD
= 5.5V
70 89 — dB V
CM
= 2.75V to 5.8V,
V
DD
= 5.5V
72 93 — dB V
CM
= -0.3V to 2.75V,
V
DD
= 5.5V
Open-Loop Gain
DC Open-Loop Gain
(Large Signal)
A
OL
95 115 — dB 0.2V < V
OUT
< (V
DD
– 0.2V)
R
L
= 50 kΩ to V
L