®
DEM-OPA68xU
EVALUATION FIXTURE
PRODUCT
PIN #2
PIN #5
PIN #8
DESCRIPTION
OPA63xU
OPA64xU
OPA628U
OPA680U
OPA681U
OPA682U
OPA686U
OPA688U
OPA689U
—
—
—
—
—
RG
—
—
—
—
DIS
+VS (optional)
+VS
The DEM-OPA68xU demonstration board is an
unpopulated printed circuit board (PCB) for Burr-
Brown’s high speed single op amps available in SO-8
packages. Figure 1 shows the pin out used for most of
these op amps. Table I lists the exceptions to this pin-out
that are also supported by this board. For more informa-
tion on these op amps, and good PCB layout techniques,
see the individual data sheets.
–VS (optional)
–VS
—
—
—
—
DIS
DIS
DIS
DNC(1)
VH
VL
VL
VH
NOTE: (1) DNC means do not connect.
TABLE I. Supported Exceptions to Pinout in Figure 1.
The ordering number for this board is MKT-351. Limit
of 5 per customer.
CIRCUIT
Top View
SO-8
The circuit schematic in Figure 2 shows the connec-
tions for all possible components. Each model will
only use some of the components.
NC
–In
1
2
3
4
8
7
6
5
NC
+VS
COMPONENTS
+In
–VS
Output
NC
Components that have RF performance similar to the
ones in Table II may be substituted. C1 and C2 need a
larger voltage rating for ±15V dual supplies.
FIGURE 1. Pin Configuration for OPA6xxU.
J3
R10
R8
VH/DIS/DIS
R9
C7
R3
R2
R4
R5
C5
8
5
3
2
J1
J2
7
R7
6
IN
Out
4
1
R1
C4
R6
C6
P1
L2
R12
R11
–VS
C2
+
C3
GND
+VS
J4
L1
R13
VL
+
C1
FIGURE 2. Circuit Schematic for DEM-OPA68xU.
International Airport Industrial Park
•
Mailing Address: PO Box 11400, Tucson, AZ 85734
•
Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706
•
Tel: (520) 746-1111
Twx: 910-952-1111 Internet: http://www.burr-brown.com/
•
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Cable: BBRCORP Telex: 066-6491
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FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
© 1998 Burr-Brown Corporation
LI-513A
Printed in U.S.A. November, 1999