Datasheet
Operational Amplifiers
Low Noise Operational Amplifiers
BA4558xxx, BA4558Rxxx
●General Description
Normal BA4558 and high-reliability BA4558R integrate two independent Op-Amps on a single chip Especially, this series is
suitable for any audio applications due to low noise and low distortion characteristics and are usable for other many
applications by wide operating supply voltage range.BA4558R is high-reliability products with extended operating
temperature range and high ESD tolerance.
●Features
High voltage gain, low noise, low distortion
Wide operating supply voltage
Internal ESD protection
Wide operating temperature Range
●Packages
W(Typ.) x D(Typ.) x H(Max.)
MSOP8
2.90mm x 4.00mm x 0.90mm
SSOP-B8
3.00mm x 6.40mm x 1.35mm
SOP8
5.00mm x 6.20mm x 1.71mm
TSSOP-B8
3.00mm x 6.40mm x 1.20mm
SOP-J8
4.90mm x 6.00mm x 1.65mm
●Key Specification
Wide Operating Supply Voltage
(split supply):±4.0V to ±15V
Wide Temperature Range: BA4558: -40°C to +85°C
BA4558R: -40°C to +105°C
High Slew Rate:
1V/µs(Typ.)
Total Harmonic Distortion :
0.005%(Typ.)
Input Referred Noise Voltage :
12 nV/ Hz (Typ.)
●Selection Guide
Normal
Dual
High Reliability
Dual
●Block Diagram
VCC
Maximum Operation Temperature
Slew Rate
+85°C
1V/µs
BA4558F
BA4558FV
BA4558FVT
BA4558FVM
BA4558FJ
Slew Rate
1V/µs
+105°C
BA4558RF
BA4558RFV
BA4558RFVT
BA4558RFVM
BA4558RFJ
－IN
＋IN
VOUT
VEE
Fig. 1 Simplified schematic
○Product structure：Silicon monolithic integrated circuit ○This product is not designed protection against radioactive rays.
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4.SEP.2012 Rev.003
