AD7793BRUZ-REEL
Analog to Digital Converters (ADC)
Technical Specifications
| Type | Description |
|---|---|
| Maximum Clock Speed | 64 kHz |
| Quiescent Current (Iq) | 400uA |
| Integral non - linearity | - |
| Voltage Reference | Built-in |
| Clock/Oscillator | Built-in |
| Resolution(Bits) | 470Hz;24 |
| S/N Ratio | - |
| DNL (LSB) | - |
| Type | Description |
|---|---|
| ADC architecture | Sigma-Delta |
| Programmable Gain | Support |
| Operating Temp | -40°C ~ +105°C |
| Interface | SPI |
| Working Voltage V | 3.975 V |
| Channels | 3.0 |
| Features | Bipolar input;Built-in temperature sensor;Multiplexers;Integrated modulator;Built-in digital filter;Auto calibration;Input buffer;Soft reset;Power-on reset |
| Package / Case | TSSOP-16 |
Product Introduction
The AD7792/AD7793 are low power, low noise, complete analog front ends for high precision measurement applications. They incorporate a low noise, 16-bit/24-bit Σ-Δ ADC with three differential analog inputs. An on-chip low noise instrumentation amplifier enables direct interfacing to small signal inputs. At a gain of 64 and an update rate of 4.17 Hz, the RMS noise is 40 nV. Both devices include an on-chip precision, low noise, low drift internal bandgap reference, and an external differential reference can also be used. Additional on-chip features include programmable excitation current sources, burnout current sources, and a bias voltage generator. The bias voltage generator is used to set the common-mode voltage of the channel to AVDD/2. The devices can operate with an internal or external clock, and the output data rate is software programmable over a range of 4.17 Hz to 470 Hz. The devices operate from a 2.7 V to 5.25 V supply, with a typical current consumption of 400 μA, and are available in a 16-lead TSSOP package.
Features
- Up to 23-bit effective resolution
- RMS noise: 40 nV (at 4.17 Hz); 85 nV (at 16.7 Hz)
- Current: 400 μA (typical)
- Power-down mode: 1 μA (maximum)
- Low-noise programmable gain instrumentation amplifier
- Bandgap voltage reference with typical temperature coefficient of 4 ppm/°C
- Update rate: 4.17 Hz to 470 Hz
- 3 differential inputs
- Internal clock oscillator
- Simultaneous 50 Hz/60 Hz rejection
- Programmable current source
- On-chip bias voltage generator
- Burnout current
- Supply voltage: 2.7 V to 5.25 V
- Temperature range: -40 °C to +105 °C
- Independent interface supply
- 16-lead TSSOP package
- Interface: 3-wire serial interface, SPI, QSPI, MICROWIRE, and DSP compatible, Schmitt trigger on SCLK pin
Applications
- - Thermocouple measurement - RTD measurement - Thermistor measurement - Gas analysis - Industrial process control - Instrumentation - Portable instrumentation - Blood analysis - Smart transmitters - Liquid/gas chromatography - 6-digit DVM
Datasheet
Alternative Parts
Common AD7793BRUZ-REEL alternatives overseas buyers search for:
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
Sourcing Information
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