- Pinout
- Footprint
ADI AD7794BRUZ-REEL
| Manufacturer | |
| MPN | AD7794BRUZ-REEL |
| LCSC Part # | C403861 |
| Packaging | TSSOP-24 |
| Customer # | |
| Key Attributes | 6-channel, low-noise, low-power sigma-delta (∑-△) ADC with built-in on-chip instrumentation amplifier and reference voltage source |
| Datasheet |  ADI AD7794BRUZ-REEL |
Products Specifications
Show similar products (0) >| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Data Acquisition/Analog to Digital Converters (ADC) | |
| Manufacturer | ADI | |
| Packaging | TSSOP-24 | |
| Operating Temperature | -40℃~+105℃ | |
| Interface | SPI | |
| Quiescent Current (Iq) | 400uA | |
| Voltage - Supply | 2.7V~5.25V | |
| Number of Channels | 6 | |
| Integral non - linearity | 15LSB | |
| Clock/Oscillator | Built-in | |
| Clock Frequency | 64kHz | |
| Features | Bipolar input;Multi-chip synchronization;Built-in temperature sensor;Multiplexers;Integrated modulator;Built-in digital filter;Auto calibration;Input buffer;Soft reset;Power-on reset | |
| Voltage Reference | Built-in | |
| Resolution(Bits) | 470Hz;24 | |
| S/N Ratio | - | |
| ADC architecture | Sigma-Delta | |
| Programmable Gain | Support |
Additional Information
| Type | Details |
|---|---|
| Minimum | 1 |
| Multiple | 1 |
| Standard Packaging | 2500 |
| Sales Unit | Piece |
| EDA Models | EasyEDA Model |
Introduction
The AD7794/AD7795 are low power, low noise, complete analog front ends designed for high precision measurement applications. They incorporate a low noise 24-bit/16-bit, 6-channel differential input Σ-Δ ADC, along with an on-chip low noise instrumentation amplifier that allows small signals to be applied directly to the ADC. Each device features a precision low noise, low drift internal bandgap voltage reference, and supports up to two external differential references. Additional on-chip features include programmable excitation current sources, burnout current control, and a bias voltage generator that can set the common-mode voltage of any channel to AVDD/2. A low-side power switch can be used to power down bridge sensors between conversions, minimizing overall system power consumption. The AD7794/AD7795 can operate with either an internal or external clock, with output data rates ranging from 4.17 Hz to 470 Hz. Both devices operate from a 2.7 V to 5.25 V supply. Grade B devices (AD7794 and AD7795) are rated for the -40°C to +105°C temperature range, while Grade C devices (AD7794) are rated for -40°C to +125°C. These devices have a typical current consumption of 400 μA and are available in a 24-lead TSSOP package.
Features
- Up to 23-bit effective resolution
- RMS noise: 40nV (at 4.17Hz), 85nV (at 16.7Hz)
- Current: 400μA (typical)
- Power-down mode: 1μA maximum
- Low-noise programmable gain instrumentation amplifier
- Bandgap voltage reference with typical temperature drift of 4ppm/°C
- Update rate: 4.17Hz to 470Hz
- 6 differential analog inputs
- Internal clock oscillator
- Simultaneous 50Hz/60Hz rejection
- Reference voltage detection
- Programmable current sources
- On-chip bias voltage generator
- Burnout current control
- Low-side power switch
- Supply voltage: 2.7V to 5.25V
- Temperature range: Grade B: -40°C to +105°C; Grade C: -40°C to +125°C
- Separate interface supply
- 24-pin TSSOP package
- 3-wire serial interface, QSPI, MICROWIRE, DSP compatible with Schmitt trigger on SCLK
Applications
- Temperature measurement
- Pressure measurement
- Electronic scales
- Strain gauge sensors
- Gas analysis
- Industrial process control
- Instrumentation
- Blood analysis
- Smart transmitters
- Liquid/gas chromatography
- 6-digit DVM
| Qty | Unit Price | Total Amount |
|---|---|---|
| 1+ | $ 10.062$ 9.3577 | $ 9.36 |
| 10+ | $ 8.7574$ 8.1444 | $ 81.44 |
| 30+ | $ 7.9623$ 7.4050 | $ 222.15 |
| 100+ | $ 7.2954$ 6.7848 | $ 678.48 |
Standard Packaging2500/Full Reel | ||
Products Specifications
Show similar products (0) >| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Data Acquisition/Analog to Digital Converters (ADC) | |
| Manufacturer | ADI | |
| Packaging | TSSOP-24 | |
| Operating Temperature | -40℃~+105℃ | |
| Interface | SPI | |
| Quiescent Current (Iq) | 400uA | |
| Voltage - Supply | 2.7V~5.25V | |
| Number of Channels | 6 | |
| Integral non - linearity | 15LSB | |
| Clock/Oscillator | Built-in | |
| Clock Frequency | 64kHz | |
| Features | Bipolar input;Multi-chip synchronization;Built-in temperature sensor;Multiplexers;Integrated modulator;Built-in digital filter;Auto calibration;Input buffer;Soft reset;Power-on reset | |
| Voltage Reference | Built-in | |
| Resolution(Bits) | 470Hz;24 | |
| S/N Ratio | - | |
| ADC architecture | Sigma-Delta | |
| Programmable Gain | Support |
Additional Information
| Type | Details |
|---|---|
| Minimum | 1 |
| Multiple | 1 |
| Standard Packaging | 2500 |
| Sales Unit | Piece |
| EDA Models | EasyEDA Model |
Introduction
The AD7794/AD7795 are low power, low noise, complete analog front ends designed for high precision measurement applications. They incorporate a low noise 24-bit/16-bit, 6-channel differential input Σ-Δ ADC, along with an on-chip low noise instrumentation amplifier that allows small signals to be applied directly to the ADC. Each device features a precision low noise, low drift internal bandgap voltage reference, and supports up to two external differential references. Additional on-chip features include programmable excitation current sources, burnout current control, and a bias voltage generator that can set the common-mode voltage of any channel to AVDD/2. A low-side power switch can be used to power down bridge sensors between conversions, minimizing overall system power consumption. The AD7794/AD7795 can operate with either an internal or external clock, with output data rates ranging from 4.17 Hz to 470 Hz. Both devices operate from a 2.7 V to 5.25 V supply. Grade B devices (AD7794 and AD7795) are rated for the -40°C to +105°C temperature range, while Grade C devices (AD7794) are rated for -40°C to +125°C. These devices have a typical current consumption of 400 μA and are available in a 24-lead TSSOP package.
Features
- Up to 23-bit effective resolution
- RMS noise: 40nV (at 4.17Hz), 85nV (at 16.7Hz)
- Current: 400μA (typical)
- Power-down mode: 1μA maximum
- Low-noise programmable gain instrumentation amplifier
- Bandgap voltage reference with typical temperature drift of 4ppm/°C
- Update rate: 4.17Hz to 470Hz
- 6 differential analog inputs
- Internal clock oscillator
- Simultaneous 50Hz/60Hz rejection
- Reference voltage detection
- Programmable current sources
- On-chip bias voltage generator
- Burnout current control
- Low-side power switch
- Supply voltage: 2.7V to 5.25V
- Temperature range: Grade B: -40°C to +105°C; Grade C: -40°C to +125°C
- Separate interface supply
- 24-pin TSSOP package
- 3-wire serial interface, QSPI, MICROWIRE, DSP compatible with Schmitt trigger on SCLK
Applications
- Temperature measurement
- Pressure measurement
- Electronic scales
- Strain gauge sensors
- Gas analysis
- Industrial process control
- Instrumentation
- Blood analysis
- Smart transmitters
- Liquid/gas chromatography
- 6-digit DVM
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
| Type | Details |
|---|---|
| RoHS | |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |