Datasheet

Physical Considerations
3-2
Board Layout
3.1 Physical Considerations
The EVM board has four circuit development areas. Each area can be
separated from the others by breaking along the score lines. The circuit layout
in each area supports an op amp package, voltage reference, and ancillary
devices. The op amp package is unique to each area as described in the
following paragraphs. The voltage reference and supporting devices are the
same for all areas. Surface-mount or through-hole components can be used
for all capacitors and resistors on the board.
The voltage reference can be either surface-mount or through-hole. If surface
mount is desired, the TLV431ACDBV5 or TLV431AIDBV5 adjustable shunt
regulators can be used. If through hole is desired, the TLV431ACLP,
TLV431AILP, TL431CLP, TL431ACLP, TL431ILP or TL431AILP adjustable
shunt regulators can be used. Refer to Texas Instruments’
Power Supply
Circuits Data Book (literature number SLVD002) for details on usage of these
shunt regulators.
Each passive component (resistor or capacitor) has a surface mount 1206
footprint with through holes at 0.2″ spacing on the outside of the 1206 pads.
Therefore, either surface-mount or through-hole parts can be used.
3.1.1 Area 100 – SOIC
Area 100 uses 1xx reference designators, and is compatible with dual op amps
with shutdown packaged as a 14-pin SOIC. This surface-mount package is
designated by a D suffix in TI part numbers, as in TLV2463CD, TLV2363ID,
TLV2263AID, etc. Refer to Figure 2–1 for a schematic.
3.1.2 Area 200 – MSOP
Area 200 uses 2xx reference designators, and is compatible with dual op amps
with shutdown packaged as a 10-pin MSOP. The MSOP package is
designated by a DGS suffix in TI part numbers, as in TLV2463CDGS. Refer
to Figure 2–2 for a schematic.
3.1.3 Area 300 – SOIC
Area 300 uses 3xx reference designators, and is compatible with single op
amps with shutdown packaged in the 8-pin SOIC package. This surface-
mount package is designated by a D suffix in TI part numbers, as in
TLV2461CD. Refer to Figure 2–3 for a schematic.
3.1.4 Area 400 – SOT23-6
Area 400 uses 4xx reference designators, and is compatible with single op
amps with shutdown packaged in the 6-pin SOT-23 package. This
surface-mount package is designated by a DBV suffix in TI part numbers, as
in TLV2460CDBV. Refer to Figure 2–4 for a schematic.