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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.

This yields performance that can be used to implement high accuracy systems, even in single-supply designs. Applications Datasjeet and video switching Battery-powered systems Test equipment Communication systems.

A guaranteed maximum input offset voltage of 0. The on-resistance profile is very flat over the full analog input range, ensuring good linearity and low distortion when switching audio signals.

Applications Battery-operated instrumentation Servo amplifiers Actuator drives Sensor conditioners Power supply control. Product Highlights Extended signal range. It is complete, including amplifier, resistor network and TTL-compatible latched inputs, and requires no external components.

ADA datasheet & applicatoin notes – Datasheet Archive

This is useful ad7077aq driving coax cable or large FET transistors. This multiplexer also features high switching speeds and low RON. The resistance between the wiper and either endpoint of the fixed resistor varies linearly datasneet respect to the digital code transferred into the VR latch. In the off condition, signal levels up to the supplies are blocked.

All switches exhibit break-before-make switching action for use in multiplexer applications. 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.

It provides a datasneet precision, fully integrated, low cost single-chip solution for generating current loop signals datashedt a compact pin SOIC or PDIP package.

  IEC 61109 PDF

To provide flexibility to the system designer, the AD can be operated in either latched or transparent mode. This allows designs to achieve higher efficiencies and to transfer more power to the load than previously possible without the use of discrete components. For applications such as transformers that require driving inductive loads, increases in efficiency are also possible. Stability while driving capacitive loads is another benefit of this design over CMOS rail-to-rail amplifiers.

High switching speed also makes the device suitable for video signal switching. CMOS construction ensures ultralow power dissipation, making the device ideally suited for portable, battery-powered instruments.

The variable resistor offers a completely programmable value of resistance between the A terminal and the wiper or the B terminal and the wiper. In addition, the AD provides excellent dc precision. Common-mode rejection is a minimum of 78 dB.


The devices can operate comfortably anywhere in the The small signal bandwidth is kHz at a gain of When they are on, each switch conducts equally well in both directions and has an input signal range that extends to the power supplies. Each switch conducts equally well in both directions when ON and each has an input signal range that extends to the supplies. The device is fully specified with a single 12 V supply. Applications Mechanical potentiometer replacement Instrumentation: Low gain error and low nonlinearity make the AD ideal for precision instrumentation applications requiring programmable gain.

For users of 3. If you have questions or suggestions,please leave us a message,we will reply you as soon as we can! Home Products News contact. 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. 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.


For applications in which the analog signal is unipolar, the ADGA can be operated from a single rail power supply. The FET-input stage results in a low bias current of 50 pA. Analog Devices also offers over 30 other high speed amplifiers from the low noise AD 1.

By using a bipolar front end, lower noise and higher accuracy than those of CMOS designs have been achieved. Full-scale settling to 0.

Eleven data bits make up the data-word clocked into the serial input register. Inherent in the design is low charge injection for minimum transients when switching the digital inputs. These switches also feature high switching speeds and low RON.

AD Datasheet and Product Info | Analog Devices

Each VR has its own VR latch that holds its programmed resistance value. The ADGA switches are turned on with a logic low on the appropriate control input. 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. These devices perform the same electronic adjustment function as a potentiometer or variable resistor.

Low charge inject is inherent in the design. The ADGA switches one of 16 inputs to a common output, depending on the state of four binary addresses and an enable input.

Darasheet 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. You can contact us any way that is convenient for you.