Datasheet

Absolute tolerance is used to compare
measured gain versus expected gain.
dB = –20*LOG(( – )/( ))
MEASURED
V V V
IN SW IN
Absolute tolerance = –dB dB
CALCULATED MEASURED
V
EE
V
DD
4 V –4 V
V
IN
V
CTRL
BW
GND
V
sw
Position
Decoder
Control
Circuitry
Binary Control
000000 –24 dB
0.75 dB/step
23.25 dB111111
dB
CALCULATED
R
g
R
sw
R
f
TPL8002-25
OPA2889
R
g
R
f
FB
+
–
R
sw
C
i
3.9 pF
TPL8002-25
www.ti.com SLIS133 –NOVEMBER 2009
PARAMETER MEASUREMENT INFORMATION
Figure 1. Analog Signal Bandwidth and Absolute Tolerance
Figure 2. Bandwidth Setup
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Product Folder Link(s): TPL8002-25