Compact Headphone Amplifiers

ROHM has a variety of headphone amplifiers. Not only conventional headphone amplifiers, but also Digital input class-D headphone amplifiers, Coupling capacitor less headphone amplifiers and Headphone amplifier designed for low voltage operation.

Coupling Capacitorless Headphone Amplifiers

Part No.

Supply Voltage
(V)

Circuit current
at no signal
(mA)

Gain
(V/V)

Max. Ouput power
(mW)

Noise harmonic distortion
(%)

Note

Package

RoHS

BD88200GUL

2.4 to 5.5

2.0

Variable Gain with external resistor

80

0.006

*Virtual ground based

VCSP50L2(BD88200GUL)

Yes

BD88210GUL

2.4 to 5.5

2.0

-1.0

80

0.006

*Virtual ground based

VCSP50L2(BD88210GUL)

Yes

BD88215GUL

2.4 to 5.5

2.0

-1.5

80

0.006

*Virtual ground based

VCSP50L2(BD88215GUL)

Yes

BD88220GUL

2.4 to 5.5

2.0

-2.0

80

0.006

*Virtual ground based

VCSP50L2(BD88220GUL)

Yes

BD88400GUL

2.4 to 5.5

2.0

Variable Gain with external resistor

80

0.006

Ground based

VCSP50L2(BD88400GUL)

Yes

BD88410GUL

2.4 to 5.5

2.0

-1.0

80

0.006

Ground based

VCSP50L2(BD88410GUL)

Yes

BD88415GUL

2.4 to 5.5

2.0

-1.5

80

0.006

Ground based

VCSP50L2(BD88415GUL)

Yes

BD88420GUL

2.4 to 5.5

2.0

-2.0

80

0.006

Ground based

VCSP50L2(BD88420GUL)

Yes

*:The virtual ground based can cancel the ground noise between the IC and the headphone jack with feedback of the ground of the headphone jack.

Headphone Amplifier Designed for Low Voltage Operation

Part No.

Supply voltage
(V)

Quiescent supply current
(mA)

Maximum output power

Noise harmonic distortion

Output noise voltage
(μVrms)

Package

RoHS

Single-ended
(mW)

BTL
(mW)

Single-ended
(%)

BTL
(%)

BU7150NUV

0.93 to 3.5

1.0

14

85

0.1

0.2

10

VSON010V3030

Yes

Standard Headphone Amplifiers

Part No.

Supply Voltage
(V)

Circuit current
at no signal
(ｍA)

Viltage gain
(dB)

Max. Ouput power
(dB)

Noise harmonic distortion
(%)

Ropple rejection
(dB)

Package

RoHS

BH3544F

2.8 to 6.5

7.0

6

0.02

62

57

SOP8

Yes

BH3547F

4.5 to 6.5

3.7

6

0.05

77

57

SOP8

Yes

BH3548F

4.0 to 5.5

6.5

6

0.02

62/120

57

SOP8

Yes