MAX7412EUA-T Maxim Integrated Products, MAX7412EUA-T Datasheet - Page 10
![no-image](/images/manufacturer_photos/0/4/417/maxim_integrated_products_sml.jpg)
MAX7412EUA-T
Manufacturer Part Number
MAX7412EUA-T
Description
Active Filter
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX7408CUA.pdf
(12 pages)
Specifications of MAX7412EUA-T
Number Of Channels
1
Cutoff Frequency
15 KHz
Supply Voltage (max)
3.6 V
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Operating Supply Voltage
3 V
Supply Voltage (min)
2.7 V
Package / Case
uMAX-8
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
5th-Order, Lowpass, Elliptic,
Switched-Capacitor Filters
Characteristics table for the input voltage range of COM
and OS. Changing the voltage on COM or OS signifi-
cantly from mid-supply reduces the dynamic range.
The MAX7408/MAX7411 operate from a single +5V
supply and the MAX7412/MAX7415 operate from a sin-
gle +3V supply. Bypass V
capacitor. If dual supplies are required, connect COM
to the system ground and GND to the negative supply.
Figure 5 shows an example of dual-supply operation.
Single-supply and dual-supply performance are equiv-
alent. For either single-supply or dual-supply operation,
drive CLK and SHDN from GND (V- in dual supply
operation) to V
±2.5, and use the MAX7412/MAX7415 for ±1.5V. For
±5V dual-supply applications, see the MAX291/
MAX292/MAX295/MAX296 and MAX293/MAX294/
MAX297 data sheets.
The optimal input signal range is determined by observ-
ing the voltage level at which the signal-to-noise plus
distortion (SINAD) ratio is maximized for a given corner
frequency. The Typical Operating Characteristics show
the THD+Noise response as the input signal’s peak-to-
peak amplitude is varied.
When using the MAX7408/MAX7411/MAX7412/
MAX7415 for anti-aliasing or post-DAC filtering, syn-
chronize the DAC (or ADC) and the filter clocks. If the
10
Table 1. Typical Harmonic Distortion
MAX7408
MAX7411
MAX7412
MAX7415
______________________________________________________________________________________
FILTER
Anti-Aliasing and Post-DAC Filtering
DD
Input Signal Amplitude Range
. Use the MAX7408/MAX7411 for
(kHz)
f
500
100
500
100
500
100
500
100
CLK
DD
to GND with a 0.1µF
Power Supplies
(Hz)
200
200
200
200
f
1k
1k
1k
1k
IN
(Vp-p)
V
4
4
2
2
clocks are not synchronized, beat frequencies may
alias into the desired passband.
Harmonic distortion arises from nonlinearities within the
filter. These nonlinearities generate harmonics when a
pure sine wave is applied to the filter input. Table 1 lists
typical harmonic distortion values with a 10kΩ load at
T
Figure 5. Dual-Supply Operation
IN
A
V+
V-
*CONNECT SHDN TO V- FOR LOW-POWER SHUTDOWN MODE.
= +25°C.
CLOCK
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
2nd
INPUT
TYPICAL HARMONIC DISTORTION (dB)
IN
CLK
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
3rd
MAX7408
MAX7411
MAX7412
MAX7415
V
GND
V+
DD
V-
Harmonic Distortion
SHDN
COM
OUT
OS
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
4th
*
0.1µF
OUTPUT
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
5th
0.1µF