High-speed SAR ADC family

24 November 2021 Analogue, Mixed Signal, LSI

Texas Instruments expanded its portfolio of high-speed data converters with a broad family of successive-approximation register (SAR) analog-to-digital converters (ADCs) that enable high-precision data acquisition in industrial designs. Featuring high dynamic range at low power consumption, the ADC3660 family includes eight SAR ADCs in 14-, 16- and 18-bit resolution at sampling speeds ranging from 10 to 125 MSps, helping designers improve signal resolution, extend battery life and strengthen system protection.

The ADC3660 family delivers up to 80% lower latency than competitive devices at similar speeds. For example, system designers can achieve one-clock (8 ns) ADC latency with the 125 MSps, 14-bit, dual-channel ADC3664. The family’s ultra-low latency enables high-speed digital control loops in a wide variety of industrial systems to more accurately monitor and respond to voltage and current spikes, increasing tool precision in applications such as semiconductor manufacturing systems.

Other family features that reduce design complexity include on-chip decimation options that enable designers to easily remove unwanted noise and harmonics in the system and boost SNR and spurious-free dynamic range up to 15 dB. These decimation options, along with the CMOS interface, enable designers to use these ADCs with Arm-based processors or digital signal processors instead of FPGAs, which can help lower system cost.

Further reading:

High-speed PIN diode
Altron Arrow Analogue, Mixed Signal, LSI
Vishay’s new high-speed Silicon PIN diode is able to detect both visible and near infra-red radiation over a wide spectrum range from 350 to 1100 nm.

Read more...

---

Analogue front end for sensor measurements
Electrocomp Analogue, Mixed Signal, LSI
The NJU9103 AFE from Nisshinbo is a tiny analogue front end, with a 16-bit resolution ADC and up to 512 x signal amplification from the programmable gain amplifier.

Read more...

---

Single-channel software configurable I/O
Altron Arrow Analogue, Mixed Signal, LSI
These use cases of the AD74115H include analogue output and input, digital output and input, resistance temperature detector (RTD), and thermocouple measurement capability.

Read more...

---

Current-sense amplifier with PWM rejection
Altron Arrow Analogue, Mixed Signal, LSI
Analog Devices’ AD8410A is a high voltage, high bandwidth current-sense amplifier that features an initial gain of 20 V/V and a 2,2 MHz bandwidth.

Read more...

---

Combining a LPF and ADC driver for a 20 Vp-p signal
Altron Arrow Analogue, Mixed Signal, LSI
A mixed-signal ADC driver circuit’s optimum performance depends on multiple variables: the driver’s settling time, the RC filter’s time constant, driving impedance, and the ADC sampling capacitor’s kickback current, all interact during acquisition time and contribute towards sampling errors.

Read more...

---

Pressure sensor with NextNav certification
EBV Electrolink Analogue, Mixed Signal, LSI
STMicroelectronics’ LPS22DF pressure sensor has received a NextNav certification, which guarantees performance and reliability for geolocation and other types of applications.

Read more...

---

Reference design for Raspberry Pi analogue I/O
Analogue, Mixed Signal, LSI
Analogue Devices has published a reference design for ±10 V analogue input and ±15 V analogue output for Raspberry Pi platforms.

Read more...

---

Multi-zone distance sensor with 90° field of view
Avnet Silica Analogue, Mixed Signal, LSI
STMicroelectronics has revealed a new FlightSense multi-zone distance sensor, with 90° field of view, to bring lifelike situational awareness to applications like home automation, computers, robots, and smart equipment.

Read more...

---

Six-axis IMU with Qvar sensing channel
Altron Arrow Analogue, Mixed Signal, LSI
The LSM6DSV16X from STMicroelectronics is a high-performance, low-power six-axis IMU, featuring a three-axis digital accelerometer and a three-axis digital gyroscope.

Read more...

---

Bidirectional current-sense amplifier with PWM
RS South Africa Analogue, Mixed Signal, LSI
The MAX49925 from Analogue Devices is a bidirectional current-sense amplifier (CSA) with an input common-mode range that extends from -40 to 76 V, making it suitable for 48 V HEV applications where there are large automotive transients.

Read more...

---