SGM2324YS SGMICRO [Shengbang Microelectronics Co, Ltd], SGM2324YS Datasheet - Page 8

• Manufacturer Part Number: SGM2324YS
• Description: 1MHz, Quad, General Purpose CMOS Operational Amplifier
• Manufacturer: SGMICRO [Shengbang Microelectronics Co, Ltd]

Typical Application Circuits
Differential Amplifier
The circuit shown in Figure 4 performs the difference function. If
the resistors ratios are equal ( R4 / R3 = R2 / R1 ), then
V
Instrumentation Amplifier
The circuit in Figure 5 performs the same function as that in Figure 4
but with the high input impedance.
Vn
Vp
OUT
= ( Vp – Vn ) × R
¼
¼
Vp
Vn
SGM2324
Figure 5. Instrumentation Amplifier
SGM2324
Figure 4. Differential Amplifier
R1
R3
Vref
2
/ R
1
R4
+ Vref.
¼
R3
R1
SGM2324
R2
¼
SGM2324
R2
R4
V
OUT
Vref
V
OUT
8
Low Pass Active Filter
The low pass filter shown in Figure 6 has a DC gain of ( - R
and the –3dB corner frequency is 1/2πR
within the bandwidth of the amplifier. The Large values of feedback
resistors can couple with parasitic capacitance and cause undesired
effects such as ringing or oscillation in high-speed amplifiers. Keep
resistors value as low as possible and consistent with output loading
consideration.
V
IN
Figure 6. Low Pass Active Filter
R1
R3 = R1 // R2
¼
R2
SGM2324
C
2
C. Make sure the filter is
SGM2324
V
OUT
2
/ R
1
)