Electronic Components Datasheet Search |
|
MAX4527EUA Datasheet(PDF) 8 Page - Maxim Integrated Products |
|
MAX4527EUA Datasheet(HTML) 8 Page - Maxim Integrated Products |
8 / 12 page Single Supply The MAX4526/MAX4527 operate from a single supply between +4.5V and +36V when V- is connected to GND. Observe all of the bipolar precautions when operating from a single supply. __________Applications Information The MAX4526/MAX4527 are designed for DC and low-frequency-signal phase-reversal applications. Both DC and AC symmetry are optimized for use with ±15V supplies. Signal Phase/Polarity Reversal The MAX4526/MAX4527 can reverse the phase or polarity of a pair of signals that are out-of-phase and balanced to ground. This is done by routing signals through the MAX4526/MAX4527 and under control of the IN pin, reversing the two signals paths inside the switch before sending out to a balanced output. Figure 1 shows a typical example. The MAX4526/MAX4527 cannot reverse the phase or polarity of a single- grounded signal, as can be done with an inverting op amp or transformer. Balanced Modulators/Demodulators The MAX4526/MAX4527 can be used as a balanced modulator/demodulator at carrier frequencies up to 100kHz (Figure 2). Higher frequencies are possible, but as frequency increases, small imbalances in the MAX4526/MAX4527’s internal capacitance and resis- tance gradually impair performance. Similarly, imbal- ances in external circuit capacitance and resistance to GND reduce overall carrier suppression. The carrier is applied as a logic-level square wave to IN. (Note that this voltage can go as negative as V-.) For best carrier suppression, the power-supply volt- ages should be equal, the square wave should have a precise 50% duty cycle, and both the input and output signals should be symmetrical about ground. Bypass V+ and V- to GND with 0.1µF ceramic capacitors, as close to the IC pins as possible. Since the logic-level translator/driver in the MAX4526 is faster than the one in the MAX4527, it gives better results at higher frequencies. In critical applications, carrier suppression can be optimized by trimming duty cycle, DC bias around GND, or external source and load capacitance. In signal lines, balancing both capacitance and resis- tance to GND produces the best carrier suppression. Transformer coupling of input and output signals provides the best isolation and carrier suppression. Transformers can also provide signal filtering, imped- ance matching, or low-noise voltage gain. Use a center-tapped transformer or high-resistance voltage divider to provide a DC path to GND on either the input signal or output signal. This ensures a DC path to GND and symmetrical operation of the internal switches. Phase-Reversal Analog Switches 8 _______________________________________________________________________________________ 50% 0V VIN VOUT 0V VB VA V- X B A -10V +10V V- 300 Ω GND V- IS CONNECTED TO GND (0V) FOR SINGLE-SUPPLY OPERATION. IN V+ VIN 50 Ω 90% 90% tTRANS tTRANS 35pF V+ V+ VOUT MAX4526 MAX4527 ______________________________________________Test Circuits/Timing Diagrams Figure 3. Address Transition Time |
Similar Part No. - MAX4527EUA |
|
Similar Description - MAX4527EUA |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |