50 MHz precision low noise CMOS amplifier

28 July 2004 Analogue, Mixed Signal, LSI

Analog Devices' AD8651 is the fastest member in the company's growing DigiTrim precision amplifier family, a high precision, low noise, low distortion, rail-to-rail CMOS operational amplifier running at single-supply voltage from 2,7 to 5 V.

The device's DigiTrim trimming technology allows for better performance at a lower price, says ADI. This is a new generation that measures and corrects the offset over the entire input common-mode range, reducing distortion caused by the VOS variation present in conventional rail-to-rail CMOS amplifiers. The AD8651 features a wide bandwidth (50 MHz) and fast settling time (0,2 µs) and low noise of 5 nV/rt Hz.

Unlike most rail-to-rail input amps, the company says the AD8651 minimises offset changes over the entire common-mode range, resulting in improved CMRR (-80 dB min) and lower distortion (0,0006%). VOS, CMRR, and gain are specified over the entire common-mode range. The combination of low distortion, precision, and fast settling time makes the device a good choice for instrumentation applications. The AD8651 is also highly effective for use in communication applications such as cellphone transmission, power control, fibre-optic networking, and wireless networking. It is also highly suited as a video line driver, photodiode amplifier, high resolution ADC driver, or high speed DAC I-to-V converter.

The AD8651 is offered in an 8-lead SOIC package and an 8-lead MSOP package. It is specified over -40 to +125°C.

Further reading:

IMU with dual-sensing capability
EBV Electrolink Analogue, Mixed Signal, LSI
ST’s 6-axis inertial measurement unit integrates a dual accelerometer up to 320g and embedded AI for activity tracking and high-impact sensing.

Read more...

---

Plural data converter series
Analogue, Mixed Signal, LSI
Silanna Semiconductor has announced the launch of Plural, a new generation of data converters for customers eager to find a more available, affordable, high-performance alternative to existing brands.

Read more...

---

Precision JFET op-amp
Altron Arrow Analogue, Mixed Signal, LSI
The specifications of the ADA4620 make it optimal as a front-end amplifier in a data-acquisition system, or for a TIA circuit with high input impedance.

Read more...

---

A new era in modular I/O solutions
Rugged Interconnect Technologies Analogue, Mixed Signal, LSI
Aerospace and defence system designers are demanding scalable and high-performance I/O solutions and while traditional mezzanine standards have proven reliable, they often fall short of meeting modern bandwidth, size, and flexibility requirements.

Read more...

---

High voltage instrument op-amp
iCorp Technologies Analogue, Mixed Signal, LSI
The SGM621B is a high accuracy, high voltage instrumentation amplifier, which is designed to set any gain from 1 to 10 000 with one external resistor.

Read more...

---

High-speed SAR ADC simplifies design
Altron Arrow Analogue, Mixed Signal, LSI
The ADI AD4080 simplifies data converter integration by integrating a low drift reference buffer, low dropout regulators and a 16K result data FIFO buffer.

Read more...

---

2-wire quad voltage output DAC
Altron Arrow Analogue, Mixed Signal, LSI
The DAC has a 2-wire serial interface that operates at clock rates up to 400 kHz, and this interface is SMBus compatible, allowing multiple devices to be placed on the same bus.

Read more...

---

Dual-channel ADC for RF applications
RFiber Solutions Analogue, Mixed Signal, LSI
The ARF0471 from Advanced RF is a dual-channel, 14-bit, 3 GSPS ADC, which features an on-chip buffer and sample-and-hold circuit.

Read more...

---

Infineon launches Edge Ai software solution
Altron Arrow Analogue, Mixed Signal, LSI
Infineon has introduced DEEPCRAFT, a new software solution category brand for Edge AI and machine learning, after the company recognised the huge potential of Edge AI for the market.

Read more...

---

16-bit voltage output denseDAC
Altron Arrow Analogue, Mixed Signal, LSI
The AD5766 uses a versatile four-wire serial interface that operates at clock rates of up to 50 MHz for write mode, and is compatible with SPI, QSPI, MICROWIRE, and DSP interface standards.

Read more...

---