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High switching speed also makes the device suitable for video signal switching. In addition, the AD provides excellent dc precision. All switches exhibit break-before-make switching action for use in multiplexer applications.
For applications in which the analog signal is unipolar, the ADGA can be operated from a single rail power supply. Applications Battery-operated instrumentation Servo amplifiers Actuator drives Sensor conditioners Power supply control. By using a bipolar front end, lower noise and higher accuracy than those of Datassheet designs have been achieved.
The devices can operate comfortably anywhere in the When they are on, each datashee conducts equally well in both directions and has an input signal range that extends to the power supplies. To provide flexibility to the system designer, the AD can be operated in either latched or transparent mode. A serial data output pin at the opposite end of the serial register AD only allows simple daisy chaining in multiple VR applications without requiring additional external decoding logic.
It can be used in three-wire or asynchronous mode and a serial-out pin is provided to allow daisy chaining of multiple DACs on the current loop side of the isolation barrier. Stability while driving capacitive loads is another benefit of this design over CMOS rail-to-rail amplifiers.
In the off condition, signal levels up to the supplies are blocked. These devices perform the same electronic adjustment function as a datasheeh or variable resistor. Low gain error and low nonlinearity make the AD ideal for precision instrumentation applications requiring programmable gain.
These VR latches are updated from an internal serial-to-parallel shift register that is loaded from a standard 3-wire serial-input digital interface.
Datashest allows designs to achieve higher efficiencies and to transfer more power to the load than previously possible without the use of discrete components. This yields performance that can ad707qa used to implement high accuracy systems, even in single-supply designs.
If the AD is going to be used at extreme temperatures and supply voltages, an external output transistor can be used to minimize power dissipation on the chip via the “BOOST” pin. It provides a high precision, fully integrated, low cost single-chip solution for generating current loop signals in a compact pin SOIC or PDIP package.
These switches also feature high switching speeds and low RON. For users of 3. CMOS construction ensures ultralow power dissipation, making the device ideally suited for portable, battery-powered instruments. Home Products News contact. It is complete, including amplifier, resistor network and TTL-compatible latched inputs, and requires no external components.
Full-scale settling to 0. Inherent in the design is low charge injection for minimum transients when switching the digital inputs. Common-mode rejection is a minimum of 78 dB. Analog Devices also offers over 30 other high speed amplifiers from the low noise AD 1. Applications Mechanical potentiometer replacement Instrumentation: Applications Audio and video switching Battery-powered systems Test equipment Communication systems.
The ADGA switches are turned on with a logic low on the appropriate control input. Each VR has its own VR latch that holds its programmed resistance value.
ADA datasheet & applicatoin notes – Datasheet Archive
The on-resistance profile is very flat over the full analog input range, ensuring good linearity and low distortion when switching audio signals. The device is fully specified with a single 12 V supply. This multiplexer also features high switching speeds and low RON. The only external components that are required in addition to normal transient protection circuitry are three low cost capacitors which are used in the DAC output filter.
The variable resistor offers a completely programmable value of resistance between the A terminal and the wiper or the B terminal and the wiper. Low charge inject is inherent in the design. You can contact us any way that is convenient for you.
Each switch conducts equally well in both directions when ON and each has an input signal range that extends to the supplies. For applications such as transformers that require driving inductive loads, increases in efficiency are also possible. Product Highlights Extended signal range. The small signal bandwidth is kHz at a gain of Eleven data bits make up the data-word clocked into the serial input register. The FET-input stage results in a low bias current of 50 pA.
The resistance between the wiper and either endpoint of the fixed resistor varies linearly with respect to the digital code transferred into the VR latch. The first three bits are decoded to determine which VR latch is loaded with the last eight bits of the data-word when the CS strobe is returned to logic high.