op113ep Analog Devices, Inc., op113ep Datasheet - Page 18

• Manufacturer Part Number: op113ep
• Description: Low Noise, Low Drift Single-supply Operational Amplifiers
• Manufacturer: Analog Devices, Inc.

OP113/OP213/OP413
Figure 51 shows the OPx13 family response to a 10 mV
overdrive signal when operating in open loop. The top trace
shows the output rising edge has a 15 μs propagation delay,
whereas the bottom trace shows a 7 μs delay on the output
falling edge. This ac response is quite acceptable in many
applications.
0V
t
r =
100
0%
90
10
+2.5V
t
f = 5ms
–2.5V
Figure 51. Precision Comparator
2V
2V
±10mV OVERDRIVE
25kΩ
100Ω
5µs
OP113
+
–
1/2
5V
Rev. F | Page 18 of 24
The low noise and 250 μV (maximum) offset voltage enhance
the overall dc accuracy of this type of comparator. Note that zero-
crossing detectors and similar ground referred comparisons can be
implemented even if the input swings to −0.3 V below ground.
+IN
–IN
9V
9V
Figure 52. OP213 Simplified Schematic
OUT