Datasheet

−0.4 −0.3 −0.2 −0.1 0 0.1 0.2 0.3 0.4 0.5 0.6
0
50
100
150
200
250
300
−0.4 −0.3 −0.2 −0.1 0 0.1 0.2 0.3 0.4 0.5 0.6
Gain Error (dB)
Number of Occurrences
−0.6 −0.5 −0.4 −0.3 −0.2 −0.1 0 0.1 0.2 0.3 0.4 0.5 0.6
0
50
100
150
200
250
−0.6 −0.5 −0.4 −0.3 −0.2 −0.1 0 0.1 0.2 0.3 0.4 0.5 0.6
Gain Error (dB)
Number of Occurrences
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5
Vcntl (V)
Gain (dB)
Low noise
Medium power
Low power
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2
Vcntl (V)
Gain (dB)
−40 deg C
25 deg C
85 deg C
AFE5808
www.ti.com SLOS688C –SEPTEMBER 2010–REVISED APRIL 2012
TYPICAL CHARACTERISTICS
AVDD_5V = 5V, AVDD = 3.3V, AVDD_ADC = 1.8V, DVDD = 1.8V, ac-coupled with 0.1µF caps at INP and 15nF
caps at INM, No active termination, VCNTL = 0V, FIN = 5MHz, LNA = 18dB, PGA = 24dB, 14Bit, sample rate =
65MSPS, LPF Filter = 15MHz, low noise mode, V
OUT
= -1dBFS, 500Ω CW feedback resistor, CMOS 16X clock,
ADC is configured in internal reference mode, Single-ended VCNTL mode, VCNTLM = GND. at ambient
temperature T
A
= +25C, unless otherwise noted.
SPACER
Figure 2. Gain vs. VCNTL, LNA = 18dB and PGA = 24dB Figure 3. Gain Variation vs. Temperature, LNA = 18dB and
PGA = 24dB
Figure 4. Gain Matching Histogram, VCNTL = 0.3V Figure 5. Gain Matching Histogram, VCNTL = 0.6V
(936 channels) (936 channels)
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