© Semiconductor Components Industries, LLC, 2006
April, 2006 − Rev. 3
1 Publication Order Number:
NE5517/D
NE5517, NE5517A, AU5517
Dual Operational
Transconductance Amplifier
The AU5517 and NE5517 contain two current-controlled
transconductance amplifiers, each with a differential input and
push-pull output. The AU5517/NE5517 offers significant design and
performance advantages over similar devices for all types of
programmable gain applications. Circuit performance is enhanced
through the use of linearizing diodes at the inputs which enable a
10 dB signal-to-noise improvement referenced to 0.5% THD. The
AU5517/NE5517 is suited for a wide variety of industrial and
consumer applications.
Constant impedance of the buffers on the chip allow general use of
the AU5517/NE5517. These buffers are made of Darlington
transistors and a biasing network that virtually eliminate the change of
offset voltage due to a burst in the bias current I
ABC
, hence eliminating
the audible noise that could otherwise be heard in high quality audio
applications.
Features
• Constant Impedance Buffers
• DV
BE
of Buffer is Constant with Amplifier I
BIAS
Change
• Excellent Matching Between Amplifiers
• Linearizing Diodes
• High Output Signal-to-Noise Ratio
• Pb−Free Packages are Available*
Applications
• Multiplexers
• Timers
• Electronic Music Synthesizers
• Dolby® HX Systems
• Current-Controlled Amplifiers, Filters
• Current-Controlled Oscillators, Impedances
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
http://onsemi.com
PIN CONNECTIONS
See detailed ordering and shipping information in the package
dimensions section on page 13 of this data sheet.
ORDERING INFORMATION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
16
15
I
ABCa
D
a
+IN
a
−IN
a
VO
a
V−
IN
BUFFERa
VO
BUFFERa
I
ABCb
D
b
+IN
b
−IN
b
VO
b
V+
IN
BUFFERb
VO
BUFFERb
N, D Packages
(Top View)
PDIP−16
N SUFFIX
CASE 648
1
SOIC−16
D SUFFIX
CASE 751B
1
MARKING
DIAGRAMS
NE5517yy
AWLYYWWG
xx = AU or NE
yy = AN or N
A = Assembly Location
WL = Wafer Lot
YY, Y = Year
WW = Work Week
G = Pb−Free Package
xx5517DG
AWLYWW
1
1