MAX1185 Maxim, MAX1185 Datasheet - Page 16

• Manufacturer Part Number: MAX1185
• Description: Dual 10-Bit / 20Msps / +3V / Low-Power ADC with Internal Reference and Multiplexed Parallel Outputs
• Manufacturer: Maxim

Dual 10-Bit, 20Msps, +3V, Low-Power ADC with
Internal Reference and Multiplexed Parallel Outputs
Figure 6. Transformer-Coupled Input Drive
Integral nonlinearity is the deviation of the values on an
actual transfer function from a straight line. This straight
line can be either a best straight-line fit or a line drawn
between the endpoints of the transfer function, once
offset and gain errors have been nullified. The static lin-
earity parameters for the MAX1185 are measured using
the best straight-line fit method.
Differential nonlinearity is the difference between an
actual step width and the ideal value of 1LSB. A DNL
error specification of less than 1LSB guarantees no
missing codes and a monotonic transfer function.
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Static Parameter Definitions
Differential Nonlinearity (DNL)
Integral Nonlinearity (INL)
V
V
IN
IN
0.1µF
0.1µF
N.C.
N.C.
MINICIRCUITS
MINICIRCUITS
3
3
1
1
2
2
TT1–6
TT1–6
T1
T1
6
5
4
6
5
4
2.2µF
2.2µF
25Ω
25Ω
25Ω
25Ω
0.1µF
0.1µF
22pF
22pF
22pF
22pF
Figure 9 depicts the aperture jitter (t
sample-to-sample variation in the aperture delay.
Aperture delay (t
falling edge of the sampling clock and the instant when
an actual sample is taken (Figure 9).
For a waveform perfectly reconstructed from digital
samples, the theoretical maximum SNR is the ratio of
the full-scale analog input (RMS value) to the RMS
INA+
COM
INA-
INB+
INB-
MAX1185
AD
Signal-to-Noise Ratio (SNR)
) is the time defined between the
Dynamic Parameter
Aperture Delay
Aperture Jitter
Definitions
AJ
), which is the