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MCP622 Datasheet PDF : 44 Pages
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MCP621/2/5
1.0 ELECTRICAL CHARACTERISTICS
1.1 Absolute Maximum Ratings †
VDD – VSS .......................................................................6.5V
Current at Input Pins ....................................................±2 mA
Analog Inputs (VIN+ and VIN–) †† . VSS – 1.0V to VDD + 1.0V
All other Inputs and Outputs .......... VSS – 0.3V to VDD + 0.3V
Output Short Circuit Current ................................ Continuous
Current at Output and Supply Pins ..........................±150 mA
Storage Temperature ...................................-65°C to +150°C
Max. Junction Temperature ........................................ +150°C
ESD protection on all pins (HBM, MM) ................≥ 1 kV, 200V
† 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 4.2.2 “Input Voltage and Current Limits”.
1.2 Specifications
DC ELECTRICAL SPECIFICATIONS
Electrical Characteristics: Unless otherwise indicated, TA = +25°C, VDD = +2.5V to +5.5V, VSS = GND, VCM = VDD/3,
VOUT ≈ VDD/2, VL = VDD/2, RL = 2 kΩ to VL and CAL/CS = VSS (refer to Figure 1-2).
Parameters
Sym
Min
Typ
Max Units
Conditions
Input Offset
Input Offset Voltage
Input Offset Voltage Trim Step Size
Input Offset Voltage Drift
Power Supply Rejection Ratio
VOS
VOSTRM
ΔVOS/ΔTA
PSRR
-200
—
—
61
—
37
±2.0
76
+200
200
—
—
µV After calibration (Note 1)
µV (Note 2)
µV/°C TA= -40°C to +125°C
dB
Input Current and Impedance
Input Bias Current
IB
—
5
—
pA
Across Temperature
IB
—
100
—
pA TA= +85°C
Across Temperature
IB
—
1700
5,000
pA TA= +125°C
Input Offset Current
IOS
—
±10
—
pA
Common Mode Input Impedance
ZCM
—
1013||9
—
Ω||pF
Differential Input Impedance
ZDIFF
—
1013||2
—
Ω||pF
Common Mode
Common-Mode Input Voltage Range VCMR VSS − 0.3
—
VDD − 1.3 V (Note 3)
Common-Mode Rejection Ratio
CMRR
65
81
—
dB VDD = 2.5V, VCM = -0.3 to 1.2V
CMRR
68
84
—
dB VDD = 5.5V, VCM = -0.3 to 4.2V
Open-Loop Gain
DC Open-Loop Gain (large signal)
AOL
88
117
—
dB VDD = 2.5V, VOUT = 0.3V to 2.2V
AOL
94
126
—
dB VDD = 5.5V, VOUT = 0.3V to 5.2V
Output
Maximum Output Voltage Swing
VOL, VOH VSS + 20
—
VDD − 20 mV VDD = 2.5V, G = +2,
0.5V Input Overdrive
VOL, VOH VSS + 40
—
VDD − 40 mV VDD = 5.5V, G = +2,
0.5V Input Overdrive
Output Short Circuit Current
ISC
±40
±85
±130
mA VDD = 2.5V (Note 4)
ISC
±35
±70
±110
mA VDD = 5.5V (Note 4)
Note 1: Describes the offset (under the specified conditions) right after power up, or just after the CAL/CS pin is toggled. Thus,
1/f noise effects (an apparent wander in VOS; see Figure 2-35) are not included.
2: Increment between adjacent VOS trim points; Figure 2-3 shows how this affects the VOS repeatability.
3: See Figure 2-6 and Figure 2-7 for temperature effects.
4: The ISC specifications are for design guidance only; they are not tested.
© 2009 Microchip Technology Inc.
DS22188A-page 3
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