Datasheet

© 2009 Microchip Technology Inc. DS21881E-page 3
MCP6231/1R/1U/2/4
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings †
V
DD
–V
SS
........................................................................7.0V
Current at Analog Input Pins (V
IN
+, V
IN
–).....................±2 mA
Analog Inputs (V
IN
+, V
IN
–) †† ........ V
SS
–1.0VtoV
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; 300V
† 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 rating conditions for extended
periods may affect device reliability.
†† See Section 4.1.2 “Input Voltage and Current Limits”.
DC ELECTRICAL CHARACTERISTICS
Electrical Characteristics: Unless otherwise indicated, T
A
= +25°C, V
DD
= +1.8V to +5.5V, V
SS
= GND, V
CM
= V
DD
/2,
R
L
= 100 kΩ to V
DD
/2 and V
OUT
≈ V
DD
/2.
Parameters
Sym Min Typ Max Units Conditions
Input Offset
Input Offset Voltage V
OS
-5.0 — +5.0 mV V
CM
= V
SS
Extended Temperature V
OS
-7.0 — +7.0 mV T
A
= -40°C to +125°C,
V
CM
= V
SS
(Note 1)
Input Offset Drift with Temperature ΔV
OS
/ΔT
A
—±3.0—µV/°CT
A
= -40°C to +125°C,
V
CM
= V
SS
Power Supply Rejection Ratio PSRR — 83 — dB V
CM
= V
SS
Input Bias Current and Impedance
Input Bias Current: I
B
— ±1.0 — pA
At Temperature I
B
—20—pAT
A
= +85°C
At Temperature I
B
— 1100 — 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
||3 — Ω||pF
Common Mode
Common Mode Input Range V
CMR
V
SS
– 0.3 — V
DD
+ 0.3 V
Common Mode Rejection Ratio CMRR 61 75 — dB V
CM
= -0.3V to 5.3V,
V
DD
= 5V
Open-Loop Gain
DC Open-Loop Gain (large signal) A
OL
90 110 — dB V
OUT
= 0.3V to V
DD
– 0.3V,
V
CM
=V
SS
Output
Maximum Output Voltage Swing V
OL
, V
OH
V
SS
+ 35 — V
DD
– 35 mV R
L
=10 kΩ, 0.5V Input
Overdrive
Output Short-Circuit Current I
SC
—±6—mAV
DD
= 1.8V
I
SC
—±23—mAV
DD
= 5.5V
Power Supply
Supply Voltage V
DD
1.8 — 6.0 V
Quiescent Current per Amplifier I
Q
10 20 30 µA I
O
= 0, V
CM
= V
DD
– 0.5V
Note 1: The SC70 package is only tested at +25°C.
2: All parts with date codes February 2007 and later have been screened to ensure operation at V
DD
= 6.0V. However, the
other minimum and maximum specifications are measured at 1.8V and 5.5V