Datasheet


SLAS105D − JANUARY 1995 − REVISED APRIL 2004
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9
TYPICAL CHARACTERISTICS
Figure 7
−1
−0.2
−0.4
−0.6
−0.8
0 40 80 120 160 200 240
0
0.8
0.6
0.4
0.2
1
DIFFERENTIAL NONLINEARITY
V
I
= V
ramp
= 0.6 V − 2.6 V, 500 Hz
V
RT
= 2.6 V, V
RB
= 0.6 V, V
DD
= 5 V
f
s
= 40 MHz
T
A
= 25°C
Differential Nonlinearity − LSB
Digital Output Code
Figure 8
7
6.5
6
ENOB − Effective Number of Bits − BITS
7.5
EFFECTIVE NUMBER OF BITS
vs
AMBIENT TEMPERATURE
8
−40 0 20 40 60
T
A
− Ambient Temperature − °C
−20 80 100
V
DD
= 5 V, V
I
= 1 V
(PP)
, 3 MHz Sine Wave
V
RT
= 2.6 V, V
RB
= 0.6 V, f
s
= 20 MHz
Figure 9
−1
−0.2
−0.4
−0.6
−0.8
0 40 80 120 160 200 240
0
0.8
0.6
0.4
0.2
1
Integral Nonlinearity − LSB
Digital Output Code
INTEGRAL NONLINEARITY
V
I
= V
ramp
= 0.6 V − 2.6 V, 500 Hz
V
RT
= 2.6 V, V
RB
= 0.6 V, V
DD
= 5 V
f
s
= 40 MHz, T
A
= 25°C
Figure 10
Magnitude − dB
−100
f − Frequency − MHz
−60
−70
−80
−90
01 23 4 5678910
FFT SPECTRUM
V
I
= 2 V
(PP)
, 1 MHz Sine Wave
V
RT
= 2.6 V, V
RB
= 0.6 V
f
s
= 20 MHz, T
A
= 25°C
−50
−10
−20
−30
−40
0