DEM-OPA68XU Datasheet, PDF (1/4 Pages) Burr-Brown (TI) – EVALUATION FIXTURE

®
DEM-OPA68xU
EVALUATION FIXTURE
DESCRIPTION
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.
The ordering number for this board is MKT-351. Limit
of 5 per customer.
Top View
NC 1
–In 2
+In 3
–V_S 4
8 NC
7 +V_S
6 Output
5 NC
SO-8
FIGURE 1. Pin Configuration for OPA6xxU.
PRODUCT
PIN #2
PIN #5
PIN #8
OPA63xU
OPA64xU
OPA628U
OPA680U
OPA681U
OPA682U
OPA686U
OPA688U
OPA689U
—
—
DIS
—
–V_S (optional) +V_S (optional)
—
–V_S
+V_S
—
—
DIS
—
—
DIS
R_G
—
DIS
—
—
DNC⁽¹⁾
—
V_L
V_H
—
V_L
V_H
NOTE: (1) DNC means do not connect.
TABLE I. Supported Exceptions to Pinout in Figure 1.
CIRCUIT
The circuit schematic in Figure 2 shows the connec-
tions for all possible components. Each model will
only use some of the components.
COMPONENTS
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.
J₃
V_H/DIS/DIS
R₁₀
R₉
R₈
R₃
R₂
J₁
IN
R₄
R₁
R₅
C₇
8
C₅
3
76
2
4
1
5
C₆
C₄
R₇ J2
Out
R₆
J₄
V_L
R₁₂
R₁₁
R₁₃
L₂
+ ^C2
C₃
L₁
+
C₁
P₁
–V_S
GND
+V_S
FIGURE 2. Circuit Schematic for DEM-OPA68xU.
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© 1998 Burr-Brown Corporation
LI-513A
Printed in U.S.A. November, 1999