Ad630arz sop-20 radio frequency circuit regulator / demodulator price advantage
explain
Ad630 is a high-precision balanced modulator / demodulator, which combines the precision and temperature stability provided by flexible commutation structure and laser wafer cutting thin film resistor. The resistor network for on-board applications provides a precision closed-loop gain of ± 1 and ± 2 with an accuracy of 0.05% (ad630b).
These resistors can also be used to accurately configure the multiplexer gain of 1, 2, 3 or 4. External feedback supports high gain or complex switching feedback topology. Ad630 can be considered as a precision operational amplifier with two independent differential input stages and a precision comparator for selecting active front end.
The fast response time of the comparator, coupled with the high rotation rate and the rapid settling of the linear amplifier, greatly reduces the switching distortion. The ad630 is used for precise signal processing and instrumentation applications that require a wide dynamic range of signals. When used as a synchronous demodulator in lock-in amplifier configuration, ad630 can recover a small signal from 100dB interference noise (see lock-in amplifier application section). Although the optimized operation is up to 1kHz, the circuit is useful at frequencies of hundreds of Hertz.
Other features of ad630 include pin programmable frequency compensation; Optional input bias current compensation resistors, common mode and differential offset voltage adjustments, and outputs indicating the active channel status of the two differential inputs.
Product highlights
1. The application flexibility of ad630 makes it the best choice. It is suitable for applications requiring accurate fixed gain. It has complete functions of switching gain, multiplexing and integral switching, and high-speed precision amplification.
2. The 100 dB dynamic range of ad630 exceeds any hybrid or IC balanced modulator / demodulator and is equivalent to expensive signal processing instruments. 3. The operational amplifier format of ad630 ensures easy implementation with high gain or complex switching feedback function. This application resistor helps to realize the common application of most without additional parts.
4. The ad630 can be used as a of 2-channel multiplexers 1, 2, 3 or 4 with gain. The channel spacing at 10 kHz is 100 dB, which is close to the limit of empty IC package.
5. Laser fine tuning of comparator and amplification channel in most cases, the offset eliminates the need for external zero adjustment.
features
Recover signal from 100 dB noise 2 MHz channel bandwidth 45 V / microsecond conversion rate
Low crosstalk:
120 dB at − 1 kHz, − 100 dB at 10 kHz pin programmable, closed-loop gain ± 1 and ± 2 0.05%, closed-loop gain accuracy and matching 100 µ V channel offset voltage (ad630) 350 kHz full power bandwidth available chip
Apply
Balanced modulation and demodulation
Synchronous detection
Phase detection
Orthogonal detection
Phase sensitive detection
Lock amplification
Square wave multiplication
Ad630 is a high-precision balanced modulator / demodulator, which combines the precision and temperature stability provided by flexible commutation structure and laser wafer cutting thin film resistor. The resistor network for on-board applications provides a precision closed-loop gain of ± 1 and ± 2 with an accuracy of 0.05% (ad630b).
These resistors can also be used to accurately configure the multiplexer gain of 1, 2, 3 or 4. External feedback supports high gain or complex switching feedback topology. Ad630 can be considered as a precision operational amplifier with two independent differential input stages and a precision comparator for selecting active front end.
The fast response time of the comparator, coupled with the high rotation rate and the rapid settling of the linear amplifier, greatly reduces the switching distortion. The ad630 is used for precise signal processing and instrumentation applications that require a wide dynamic range of signals. When used as a synchronous demodulator in lock-in amplifier configuration, ad630 can recover a small signal from 100dB interference noise (see lock-in amplifier application section). Although the optimized operation is up to 1kHz, the circuit is useful at frequencies of hundreds of Hertz.
Other features of ad630 include pin programmable frequency compensation; Optional input bias current compensation resistors, common mode and differential offset voltage adjustments, and outputs indicating the active channel status of the two differential inputs.
Product highlights
1. The application flexibility of ad630 makes it the best choice. It is suitable for applications requiring accurate fixed gain. It has complete functions of switching gain, multiplexing and integral switching, and high-speed precision amplification.
2. The 100 dB dynamic range of ad630 exceeds any hybrid or IC balanced modulator / demodulator and is equivalent to expensive signal processing instruments. 3. The operational amplifier format of ad630 ensures easy implementation with high gain or complex switching feedback function. This application resistor helps to realize the common application of most without additional parts.
4. The ad630 can be used as a of 2-channel multiplexers 1, 2, 3 or 4 with gain. The channel spacing at 10 kHz is 100 dB, which is close to the limit of empty IC package.
5. Laser fine tuning of comparator and amplification channel in most cases, the offset eliminates the need for external zero adjustment.
features
Recover signal from 100 dB noise 2 MHz channel bandwidth 45 V / microsecond conversion rate
Low crosstalk:
120 dB at − 1 kHz, − 100 dB at 10 kHz pin programmable, closed-loop gain ± 1 and ± 2 0.05%, closed-loop gain accuracy and matching 100 µ V channel offset voltage (ad630) 350 kHz full power bandwidth available chip
Apply
Balanced modulation and demodulation
Synchronous detection
Phase detection
Orthogonal detection
Phase sensitive detection
Lock amplification
Square wave multiplication