LTC2640HTS8-LZ8#TRPBF Linear Technology, LTC2640HTS8-LZ8#TRPBF Datasheet - Page 20

• Manufacturer Part Number: LTC2640HTS8-LZ8#TRPBF
• Description: IC DAC 8BIT VOUT W/REF TSOT23-8
• Manufacturer: Linear Technology

Specifications of LTC2640HTS8-LZ8#TRPBF

• Settling Time: 3.2µs
• Number Of Bits: 8
• Data Interface: Serial
• Number Of Converters: 1
• Voltage Supply Source: Single Supply
• Power Dissipation (max): 450µW
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: TSOT-23-8, TSOT-8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

LTC2640
OPERATION
this effect than any other parts of this type; on the con-
trary, it allows layout-based performance improvements
to shine rather than limiting attainable performance with
excessive internal resistance.
Another technique for minimizing errors is to use a sepa-
rate power ground return trace on another board layer.
The trace should run between the point where the power
supply is connected to the board and the DAC ground pin.
Thus the DAC ground pin becomes the common point for
20
analog ground, digital ground, and power ground. When
the LTC2640 is sinking large currents, this current fl ows
out the ground pin and directly to the power ground trace
without affecting the analog ground plane voltage.
It is sometimes necessary to interrupt the ground plane
to confi ne digital ground currents to the digital portion of
the plane. When doing this, make the gap in the plane only
as long as it needs to be to serve its purpose and ensure
that no traces cross over the gap.
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