BA82904YFVM-CE2 View Datasheet(PDF) - ROHM Semiconductor

Part Name

Description

MFG CO.

BA82904YFVM-CE2

Automotive Excellent EMI Characteristics Ground Sense Operational Amplifiers

ROHM Semiconductor 

BA82904Yxxx-C BA82902Yxxx-C

Application Information

Test Circuit 1: Measurement Condition

VCC, VEE, VEK, VICM Unit: V

Parameter

VF SW1 SW2 SW3 VCC

VEE

VEK

VICM Calculation

Input Offset Voltage

VF1

ON

ON OFF 5 to 30 0

-1.4

0

1

Input Offset Current

VF2 OFF OFF OFF

5

0

-1.4

0

2

Input Bias Current

VF3 OFF ON

OFF

5

0

-1.4

0

3

VF4 ON OFF

Large Signal Voltage Gain

VF5

15

0

-1.4

0

ON ON ON

4

VF6

15

0

-11.4

0

Common-mode Rejection Ratio

VF7

(Input Common-mode Voltage Range) VF8

ON

ON OFF

5

5

0

-1.4

0

0

-1.4 3.5

5

Power Supply Rejection Ratio

VF9

5

0

-1.4

0

ON ON OFF

6

VF10

30

0

-1.4

0

- Calculation -

1. Input Offset Voltage (VIO)

VIO



V F1

1+ RF /

RS

[V]

2. Input Offset Current (IIO)

I IO



RI

VF2 -VF1

× (1+ RF /

RS

)

[A]

VICM

3. Input Bias Current (IB)

IB



2

×

RI

VF4 -VF3

× (1+ RF

/ RS )

[A]

4. Large Signal Voltage Gain (AV)

AV

 20 × Log ΔVEK × (1 + RF /RS )

VF5 -VF6

RS=50Ω

RS=50Ω

50kΩ

[dB]

SW1

RI=10kΩ

RI=10kΩ

SW2

0.1µF

VCC

DUT

RF=50kΩ

500kΩ

VEK

VO

500kΩ

SW3

1000pF

RL

VEE

0.1µF

15V

NULL

-15V

Figure 48. Test Circuit 1 (One Channel Only)

V VF

5. Common-mode Rejection Ration (CMRR)

CMRR  20 × Log ΔVICM × (1 + RF /RS ) [dB]

VF8 -VF7

6. Power Supply Rejection Ratio (PSRR)

PSRR  20 × Log ΔVCC × (1 + RF /RS ) [dB]

VF10 -VF9

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TSZ22111 • 15 • 001

21/35

TSZ02201-0GLG0G200040-1-2

20.Feb.2018 Rev.007

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