Model No: AD7705BRUZ-REEL
Analog Devices Inc. AD7705BRUZ-REEL
Manufacturer: Analog Devices Inc.
SEMICON NO.: AD7705BRUZ-REEL
Package: 16-TSSOP
Stock: In stock
Description: 16Bit ADC Converter 2 Channels Differential
SEMICON NO.: AD7705BRUZ-REEL
Package: 16-TSSOP
Stock: In stock
Description: 16Bit ADC Converter 2 Channels Differential
Quantity :
| Mfr | Analog Devices Inc. |
| Device Type | 16-bit, Sigma-Delta Analog-to-Digital Converter (ADC) |
| Number of Channels | 16-bit |
| Architecture | 2 |
| Sampling Rate (Max) | 500 SPS |
| Input Type | Differential |
| Input Signal Range (Unipolar) | 0 mV to 20 mV (min), 0 V to 2.5 V (max) |
| Input Signal Range (Bipolar) | ±20 mV (min), ±2.5 V (max) |
| Programmable Gain Amplifier (PGA) | 1 to 128 |
| Reference Type | External |
| Data Interface | SPI, DSP Compatible (3-Wire Serial) |
| Operating Voltage (AVDD / DVDD) | 2.7 V to 3.3 V, 4.75 V to 5.25 V |
| Power Consumption (Max) | 1 mW @ 3V Supply |
| Standby Current (Max) | 8 µA |
| Operating Temperature | -40°C to +85°C |
| Package | 16-TSSOP |
| Mounting Type | Surface Mount |
| Compliance | RoHS Compliant |
AD7705BRUZ-REEL 16-bit 2-channel ADC sigma-delta converter
The AD7705BRUZ-REEL, manufactured by Analog Devices, is a 16-bit, 2-channel sigma-delta analog-to-digital converter (ADC) specifically engineered for low-frequency measurement applications such as weigh scales, pressure transducers, and temperature monitoring. It employs an advanced sigma-delta architecture combined with an on-chip programmable gain amplifier (PGA) that offers gain settings from 1 to 128, enabling it to directly accept low-level analog signals from strain gauges and thermocouples without the need for external signal conditioning circuitry. Operating from a single supply voltage ranging from 2.7V to 3.3V or 4.75V to 5.25V, the converter consumes exceptionally low power and includes a standby mode to preserve battery life during idle periods, making it perfectly suited for battery-powered and isolated systems. Furthermore, the on-chip digital filter can be configured to provide programmable first-notch and output update rates, effectively shaping the quantization noise and attenuating line frequency interference, while chopper stabilization techniques minimize input offset drift, ensuring superb noise-free resolution across slowly varying signals.
This ADC is optimized for high-density, automated surface mount manufacturing while ensuring robust performance in compact layouts. Communication with the host microcontroller is executed through a 3-wire serial interface that is compatible with SPI, QSPI, and MICROWIRE standards, which not only reduces the interconnect wiring but also simplifies integration with a wide variety of digital controllers. The AD7705 features two fully differential analog input pairs that can be flexibly configured as three pseudo-differential inputs, enabling multi-sensor multiplexing within a single package. It also incorporates self-calibration and system calibration capabilities to dynamically eliminate internal offset and gain errors, ensuring long-term precision.
Alternative ADCs
● ADS1120IPWR: A 16-bit, 2-channel, low-power delta-sigma ADC from Texas Instruments featuring an integrated PGA and SPI interface, offering a highly compatible and feature-rich alternative for high-resolution sensor measurement applications.
● MCP3422A0-E/SN: An 18-bit, 2-channel delta-sigma ADC from Microchip with an integrated PGA and I2C interface, replacing the SPI bus with a simpler 2-wire architecture ideal for space-constrained sensor nodes.
● CS1237-DSZR: A 24-bit, high-precision, ultra-low-power delta-sigma ADC from Chipseq with an integrated PGA and 2-wire serial interface, tailored for advanced weighing scales requiring significantly higher resolution and dynamic range.
The AD7705BRUZ-REEL, manufactured by Analog Devices, is a 16-bit, 2-channel sigma-delta analog-to-digital converter (ADC) specifically engineered for low-frequency measurement applications such as weigh scales, pressure transducers, and temperature monitoring. It employs an advanced sigma-delta architecture combined with an on-chip programmable gain amplifier (PGA) that offers gain settings from 1 to 128, enabling it to directly accept low-level analog signals from strain gauges and thermocouples without the need for external signal conditioning circuitry. Operating from a single supply voltage ranging from 2.7V to 3.3V or 4.75V to 5.25V, the converter consumes exceptionally low power and includes a standby mode to preserve battery life during idle periods, making it perfectly suited for battery-powered and isolated systems. Furthermore, the on-chip digital filter can be configured to provide programmable first-notch and output update rates, effectively shaping the quantization noise and attenuating line frequency interference, while chopper stabilization techniques minimize input offset drift, ensuring superb noise-free resolution across slowly varying signals.
This ADC is optimized for high-density, automated surface mount manufacturing while ensuring robust performance in compact layouts. Communication with the host microcontroller is executed through a 3-wire serial interface that is compatible with SPI, QSPI, and MICROWIRE standards, which not only reduces the interconnect wiring but also simplifies integration with a wide variety of digital controllers. The AD7705 features two fully differential analog input pairs that can be flexibly configured as three pseudo-differential inputs, enabling multi-sensor multiplexing within a single package. It also incorporates self-calibration and system calibration capabilities to dynamically eliminate internal offset and gain errors, ensuring long-term precision.
Alternative ADCs
● ADS1120IPWR: A 16-bit, 2-channel, low-power delta-sigma ADC from Texas Instruments featuring an integrated PGA and SPI interface, offering a highly compatible and feature-rich alternative for high-resolution sensor measurement applications.
● MCP3422A0-E/SN: An 18-bit, 2-channel delta-sigma ADC from Microchip with an integrated PGA and I2C interface, replacing the SPI bus with a simpler 2-wire architecture ideal for space-constrained sensor nodes.
● CS1237-DSZR: A 24-bit, high-precision, ultra-low-power delta-sigma ADC from Chipseq with an integrated PGA and 2-wire serial interface, tailored for advanced weighing scales requiring significantly higher resolution and dynamic range.
