BA2902SF-E2 Rohm Semiconductor, BA2902SF-E2 Datasheet - Page 19

• Manufacturer Part Number: BA2902SF-E2
• Description: IC OPAMP QUAD 32V 0.7MA SOP-14
• Manufacturer: Rohm Semiconductor

Specifications of BA2902SF-E2

• Amplifier Type: General Purpose
• Number Of Circuits: 4
• Slew Rate: 0.2 V/µs
• Gain Bandwidth Product: 500kHz
• Current - Input Bias: 20nA
• Voltage - Input Offset: 2000µV
• Current - Supply: 700µA
• Current - Output / Channel: 30mA
• Voltage - Supply, Single/dual (±): 3 V ~ 32 V, ±1.5 V ~ 16 V
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 14-SOP (4.4mm Width)
• Number Of Channels: 4
• Voltage Gain Db: 100 dB
• Common Mode Rejection Ratio (min): 80 dB
• Input Offset Voltage: 2 mV
• Output Current (typ): 30 mA
• Operating Supply Voltage: 3 V to 32 V
• Supply Current: 0.7 mA
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Output Type: -
• -3db Bandwidth: -
• Lead Free Status / Rohs Status: Details
• Other names: BA2902SF-E2TR

BA10358F/FV, BA10324AF/FV, BA2904SF/FV/FVM, BA2904F/FV/FVM
BA2902SF/FV/KN, BA2902F/FV/KN, BA3404F/FVM
● Examples of circuit
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www.rohm.com
○ Inverting amplifier
Vin
○ Voltage follower
○ Non-inverting amplifier
Vin
Vin
R1
R1
R1//R2
R2
R2
VCC
VEE
VCC
VEE
VEE
VCC
Vout
Vout
19/25
Vout
Voltage gain is 0 [dB].
This circuit controls output voltage (Vout) equal input
voltage (Vin), and keeps Vout with stable because of
high input impedance and low output impedance.
Vout is shown next formula.
Vout=Vin
For non-inverting amplifier, Vin is amplified by voltage
gain decided R1 and R2, and phase is same with Vin.
Vout is shown next formula.
Vout=(1+R2/R1) ・ Vin
This circuit realizes high input impedance because
Input impedance is operational amplifier’s input
Impedance.
For inverting amplifier, Vin is amplified by voltage gain
decided R1 and R2, and phase reversed voltage is
outputed.
Vout is shown next formula.
Vout=-(R2/R1) ・ Vin
Input impedance is R1.
Technical Note
2010.11 - Rev.A