MAX1190 Datasheet, PDF (20/21 Pages) Maxim Integrated Products – Dual 10-Bit, 120Msps, 3.3V, Low-Power ADC with Internal Reference and Parallel Outputs

Dual 10-Bit, 120Msps, 3.3V, Low-Power ADC
with Internal Reference and Parallel Outputs
Total Harmonic Distortion (THD)
THD is typically the ratio of the RMS sum of the first four
harmonics of the input signal to the fundamental itself.
This is expressed as:

THD
=
20
×
log



V₂ ²
+
V₃ ²
+
V₄ ²
+
V₅ ²


V₁


where V₁ is the fundamental amplitude, and V₂ through
V₅ are the amplitudes of the 2nd- through 5th-order
harmonics.
Spurious-Free Dynamic Range (SFDR)
SFDR is the ratio expressed in decibels of the RMS
amplitude of the fundamental (maximum signal compo-
nent) to the RMS value of the next largest spurious
component, excluding DC offset.
Intermodulation Distortion (IMD)
The two-tone IMD is the ratio expressed in decibels of
either input tone to the worst 3rd-order (or higher) inter-
modulation products. The individual input tone levels are
at -6.5dB full scale and their envelope is at -0.5dB full
scale.
Chip Information
TRANSISTOR COUNT: 10,811
PROCESS: CMOS
Functional Diagram
V_DD
GND
INA+
INA-
CLK
INB+
INB-
OGND
OV_DD
T/H
ADC
DEC
10
OUTPUT
10
DRIVERS
D9A–D0A
CONTROL
T/H
ADC
REFERENCE
REFOUT
REFN COM REFP REFIN
10
DEC
OE
OUTPUT
10
DRIVERS
D9B–D0B
MAX1190
T/B
PD
SLEEP
20 ______________________________________________________________________________________