MCP622T Ver la hoja de datos (PDF) - Microchip Technology
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MCP622T Datasheet PDF : 44 Pages
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MCP621/2/5
2.0 TYPICAL PERFORMANCE CURVES
Note:
The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
Note: 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, CL = 50 pF, and CAL/CS = VSS.
2.1 DC Signal Inputs
22%
20%
18%
16%
14%
80 Samples
TA = +25°C
VDD = 2.5V and 5.5V
Calibrated at +25°C
12%
10%
8%
6%
4%
2%
0%
-80 -60 -40 -20 0 20 40 60 80
Input Offset Voltage (µV)
FIGURE 2-1:
Input Offset Voltage.
300
200
100
0
-100
-200
+125°C
+85°C
+25°C
-40°C
Representative Part
Calibrated at VDD = 6.5V
-300
-400
-500
-600
-700
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5
Power Supply Voltage (V)
FIGURE 2-4:
Input Offset Voltage vs.
Power Supply Voltage.
24%
22%
20%
18%
16%
14%
12%
10%
8%
6%
4%
2%
0%
80 Samples
VDD = 2.5V and 5.5V
TA = -40°C to +125°C
Calibrated at +25°C
-10 -8 -6 -4 -2 0 2 4 6 8 10
Input Offset Voltage Drift (µV/°C)
FIGURE 2-2:
Input Offset Voltage Drift.
50
Representative Part
40
30
20
10
0
VDD = 5.5V
-10
-20
VDD = 2.5V
-30
-40
-50
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
Output Voltage (V)
FIGURE 2-5:
Output Voltage.
Input Offset Voltage vs.
50%
45%
40%
35%
200 Samples
TA = +25°C
VDD = 2.5V and 5.5V
30%
25%
No Change
(includes noise)
20%
15%
10%
5%
Calibration
Changed
(-1 step)
Calibration
Changed
(+1 step)
0%
-60 -50 -40 -30 -20 -10 0 10 20 30 40 50 60
Input Offset Voltage Calibration Repeatability
(µV)
FIGURE 2-3:
Input Offset Voltage
Repeatability (repeated calibration).
0.0
-0.1
1 Lot
Low (VCMR_L – VSS)
-0.2
-0.3
-0.4
VDD = 2.5V
VDD = 5.5V
-0.5
-50
-25 0 25 50 75 100 125
Ambient Temperature (°C)
FIGURE 2-6:
Low Input Common Mode
Voltage Headroom vs. Ambient Temperature.
© 2009 Microchip Technology Inc.
DS22188A-page 7
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