RNB4580 Series
Dual Low Noise Operational Amplifier
REA03D0004-0100
Rev.1.00
Dec 25, 2006
Description
RNB4580 is dual bipolar low noise amplifiers designed for audio systems to improve tone control, audio pre-amplifier
and industrial measurement tools. It also suitable for head phone amplifier at higher output current.
This product features internal frequency compensation, low noise, low distortion, high gain and high bandwidth. It also
can operate under dual power supply voltage up to ±18 V or single power supply up to 36 V.
The IC can be applied for the handy type set operational amplifier of general purpose in application of low voltage
single supply type, which is properly biased of the input low voltage source.
Features
•
•
•
•
•
•
Wide bandwidth: 15 MHz
High speed: 7 V/µs
Low input noise voltage: 0.7 µVrms
Large DC voltage gain: 110 dB
Operating voltage: ±2 V to ±18 V
Package outline available in Pb free lead frame:
DP-8
SOP-8 (JEITA)
SOP-8 (JEDEC)
Applications
•
•
•
•
Audio AC-3 decoder system
Audio amplifier
Pre-amp
Active filter
Ordering Information
Type No.
RNB4580
RNB4580F
RNB4580RP
Note: This product is designed for consumer use and not for automotive.
Application
Commercial use
Package Code (Package Name)
PRDP0008AF-B (DP-8FV)
PRSP0008DE-B (FP-8DGV)
PRSP0008DD-C (FP-8DCV)
Rev.1.00 Dec 25, 2006 page 1 of 8
RNB4580 Series
Pin Arrangement
Vout1
1
1
– +
2
+ –
8
V
CC
Vout2
Vin(–)1
2
7
Vin(+)1
3
6
Vin(–)2
V
EE
4
5
Vin(+)2
(Top view)
Circuit Schematic (1/2)
V
CC
– Input
Output
+ Input
V
EE
Rev.1.00 Dec 25, 2006 page 2 of 8
RNB4580 Series
Absolute Maximum Ratings
(Ta = 25°C)
Item
Supply Voltage
Differential input voltage
Common mode input voltage
Power dissipation
Operating temperature
Symbol
V
CC
V
EE
V
IN
(diff)
3
V
CM
*
P
T
Topr
RNB4580
18
–18
±30
±15
670 *
–40 to +85
1
Ratings
RNB4580F
18
–18
±30
±15
385 *
–40 to +85
2
RNB4580RP
18
–18
±30
±15
385 *
–40 to +85
2
Unit
V
V
V
V
mW
°C
Storage temperature
Tstg
–55 to +125
–55 to +125
–55 to +125
°C
Notes: 1. This is the allowable value up to Ta = 45°C. Derate by 8.3 mW/°C above that temperature.
2. These are the allowable values up to Ta = 60°C mounting on 40mm
×
40mm
×
1.6mm (t) 10% wiring density
glass epoxy board. Derate by 5.9 mW/°C above that temperature.
3. If the supply voltage is less than
±15
V, input voltage should be less than supply voltage.
Electrical Characteristics
(Ta = 25°C, V
CC
= +15 V, V
EE
= –15 V, unless otherwise specified)
Item
Input offset voltage
Input offset current
Input bias current
Supply current
Power supply rejection ratio
Voltage gain
Common mode rejection ratio
Output sink current
Output source current
Input common mode voltage range
Slew rate
Equivalent input noise voltage
Gain bandwidth product
Total harmonic distortion
Symbol
V
IO
I
IO
I
IB
I
CC
PSRR
A
V
CMR
I
OSINK
I
OSOURCE
V
ICM
SR
V
NI
GBP
THD
Min
—
—
—
—
80
90
80
—
—
±12
—
—
—
—
Typ
0.5
5
150
4
110
110
110
80
45
±13.5
7
0.7
15
0.0005
Max
3
100
500
7
—
—
—
—
—
—
—
—
—
—
Unit
mV
nA
nA
mA
dB
dB
dB
mA
mA
V
V/µs
µVrms
Test Conditions
R
S
≤
10 kΩ
R
S
≤
10 kΩ
R
L
≥
2 kΩ, V
O
=
±10
V
R
S
≤
10 kΩ, V
CM
= 0 V to
V
CC
= –1.5 V
V
IN(–)
= 1 V, V
IN(+)
= 0 V,
V
O
= 2 V
V
IN(–)
= 0 V, V
IN(+)
= 1 V,
V
O
= 2 V
RIAA, R
S
= 2.2 kΩ,
30 kHz LPF
f = 10 kHz, R
L
= 2 kΩ
A
V
= 20 dB, V
O
= 5 V,
R
L
= 2 kΩ, f = 1 kHz
MHz
%
Rev.1.00 Dec 25, 2006 page 3 of 8
RNB4580 Series
Table of Graphs
Electrical Characteristics
Open loop voltage gain
Output swing voltage
Output swing voltage
Equivalent input noise voltage
Input offset voltage
Total harmonic distortion
Maximum output voltage swing
Operating current
vs. Frequency f
vs. Frequency f
vs. Load resistance R
L
vs. Frequency f
vs. Temperature Ta
vs. Output Voltage Vo
vs. Operating voltage V
vs. Temperature Ta
Figure
1
2
3
4
5
6
7
8
Rev.1.00 Dec 25, 2006 page 4 of 8
RNB4580 Series
Typical Characteristics Curves
Figure 1. Open Loop Voltage Gain vs. Frequency
120
V
CC
= +15 V,
V
EE
= –15 V,
100
Ta = 25°C,
R
L
= 2 kΩ
80
60
40
20
0
Figure 2. Output Swing Voltage vs. Frequency
30
Open loop voltage gain (dB)
Output swing voltage (V)
25
20
15
10
5
V
CC
= +15 V,
V
EE
= –15 V,
Ta = 25°C,
R
L
= 2 kΩ
1k
10 k
100 k
Frequency f (Hz)
1M
1
10
100 1 k 10 k 100 k 1 M 10 M
Frequency f (Hz)
0
100
22
20
18
16
14
12
10
100
1k
Load resistance (Ω)
10 k
Equivalent Input noise voltage (nV√(Hz)
0.5
)
Output swing voltage (V)
Figure 3. Output Swing Voltage vs. Load Resistance
30
28 V
CC
= +15 V,
V
EE
= –15 V,
26 Ta = 25°C
24
Figure 4. Equivalent Input Noise Voltage vs. Frequency
20
V
CC
= +15 V,
V
EE
= –15 V,
Ta = 25°C,
15
R
S
= 100
Ω
10
5
0
1
10
100
Frequency f (Hz)
1k
1
0.5
0
Total harmonic distortion (%)
Input offset voltage (mV)
Figure 5. Input Offset Voltage vs. Temperature
2
V
CC
= +15 V,
V
EE
= –15 V
1.5
Figure 6. Total Harmonic Distortion vs. Output Voltage
1.00E+01
V
CC
= +15 V,
V
EE
= –15 V,
1.00E+00 Ta = 25°C,
R
L
= 2 kΩ
1.00E-01
1.00E-02
1.00E-03
1.00E-04
0.1
20 kHz
10 kHz
1 kHz
–0.5
–1
–50
–25
0
25
50
75 100
Temperature Ta (°C)
125
1
Output voltage V
O
(Vrms)
10
Rev.1.00 Dec 25, 2006 page 5 of 8
