LM98640QML-SP Datasheet, PDF (14/54 Pages) Texas Instruments – Dual Channel, 14-Bit, 40 MSPS Analog Front End with LVDS Output

LM98640QML-SP
SNAS461D – MAY 2010 – REVISED SEPTEMBER 2015
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LM98640QML Electrical Characteristics⁽¹⁾⁽²⁾ (continued)
The following specifications apply for VDD33 = 3.3V, VDD18 = 1.8V, C_L = 10pF, and f_INCLK = 40MHz unless otherwise
specified.
PARAMETER
TEST CONDITIONS
NOTES
SUB-
GROUPS
MIN TYP⁽³⁾ MAX UNIT
5 MHz
1, 2
-66.0 -64.6
dB
3
-65.0 -62.5
Noise Floor CDS Gain = 1x
PGA Gain = FE
15 MHz
25 MHz
1, 2
-66.0 -64.6
dB
3
-66.0 -64.5
1, 2
-66.0 -64.6
dB
3
-65.0 -64.3
40 MHz
1, 2
-66.0 -64.6
dB
3
-66.5 -65.7
5 MHz
1, 2
8.20 9.6
LSB
3
9.15 11.9
Noise
Noise Floor CDS Gain = 1x
PGA Gain = FE
15 MHz
25 MHz
1, 2
8.20 9.6
LSB
3
8.20 9.4
1, 2
8.20 9.45
LSB
3
9.15 10.0
40 MHz
1, 2
8.20 9.45
LSB
3
7.70 8.5
5 MHz
1, 2
-79 -78 dB
Noise Floor CDS Gain = 1x
PGA Gain = 61
15 MHz
25 MHz
1, 2
-79 -78 dB
1, 2
-79 -78 dB
40MHz
1, 2
-79 -78 dB
5 MHz
1, 2
1.8 2.05 LSB
Noise Floor CDS Gain = 1x
PGA Gain = 61
15 MHz
25 MHz
1, 2
1.8 2.05 LSB
1, 2
1.8 2.05 LSB
40 MHz
1, 2
1.8 2.05 LSB
5 MHz
4, 5, 6
-79 -77
Channel to Channel Crosstalk
15 MHz
25 MHz
-86 -84
dB
-79 -77
40 MHz
-76 -74
BMD
CDS Mode Bimodal Offset
CDS Gain = 1x
PGA Gain = 8x
CDS Mode Bimodal Offset
CDS Gain = 1x
PGA Gain = 1x
5 MHz
15 MHz
25 MHz
40 MHz
5 MHz
15 MHz
25 MHz
40 MHz
1, 2, 3
1, 2, 3
2.2 6.0
2.1 6.0
mV
2.2 6.0
2.3 6.0
0.35
1
0.29 0.87
mV
0.33 0.89
0.4 1.05
5 MHz
4, 5
66.0 67.4
dB
6
63.0 64.2
SNR
Signal-to-Noise Ratio
15 MHz
25 MHz
4, 5
66.6 68.0
dB
6
63.0 64.2
4, 5
66.7 68.5
dB
6
63.0 64.2
40 MHz
4, 5
66.5 68.5
dB
6
62.0 64.0
14
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