My Inquiry
My Account
Analog Devices Inc. AD7792BRUZ-REEL
- Part No.:
- AD7792BRUZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AD7792BRUZ-REEL.pdf
- Description:
- IC ADC 16BIT SIGMA-DELTA 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,667
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AD7792BRUZ-REEL from Analog Devices is a 16-bit, low-noise, low-power Σ-Δ analog-to-digital converter with integrated instrumentation amplifier, on-chip band gap reference, and three differential analog inputs. It delivers 40 nV rms noise at 4.17 Hz update rate (gain = 64), consumes 400 μA typical supply current, operates from 2.7 V to 5.25 V, and is housed in a 16-lead TSSOP package. It targets high-precision industrial sensor measurement systems requiring stable DC accuracy and 50/60 Hz rejection.
For engineers reviewing the AD7792BRUZ-REEL datasheet, AD7792BRUZ-REEL pinout, AD7792BRUZ-REEL application, or AD7792BRUZ-REEL equivalent, this page provides verified technical context, real-world design meaning for key specs, validated pin functions, confirmed alternative options, and supply support details specific to the AD7792BRUZ-REEL - not the AD7793 or generic family members.
Technical Context
The AD7792BRUZ-REEL implements a third-order Σ-Δ modulator with digital filter supporting programmable output rates from 4.17 Hz to 470 Hz. Its on-chip instrumentation amplifier offers gain settings of 1–128 and enables direct connection of low-level sensors like thermocouples and RTDs without external signal conditioning.
It integrates dual programmable excitation current sources (10/210/1000 μA), a bias voltage generator (AVDD/2), burnout detection currents, and simultaneous 50 Hz/60 Hz notch filtering via internal clock synchronization. The device supports both internal 64 kHz oscillator and external clock input, with independent AVDD (analog) and DVDD (digital I/O) supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit effective (no missing codes); supports up to 23-bit effective resolution at slowest update rate with gain. |
| RMS Noise | 40 nV @ 4.17 Hz, gain = 64 - enables sub-microvolt-level thermocouple voltage digitization. |
| Supply Current | 400 μA typical - allows battery-powered portable instrumentation with >1-year runtime on coin cell. |
| Update Rate | 4.17 Hz to 470 Hz software-programmable - balances noise performance vs. throughput for sensor polling. |
| Reference | On-chip 1.17 V band gap reference (4 ppm/°C drift) - eliminates external reference component and layout area. |
| Input Channels | 3 differential analog inputs (AIN1, AIN2, AIN3) - supports multi-sensor systems (e.g., thermocouple + RTD + cold-junction compensation). |
| Interface | 3-wire SPI-compatible serial interface with Schmitt-triggered SCLK - ensures robust communication in noisy industrial environments. |
| Operating Temp | −40°C to +105°C - qualified for use in industrial process control enclosures and automotive under-hood sensing. |
Pinout & Package
AD7792BRUZ-REEL is supplied in a 16-lead TSSOP package (4.4 mm × 5.0 mm, 0.65 mm pitch), RoHS-compliant and moisture-sensitive level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCLK | Serial clock input | Schmitt-triggered; enables opto-isolated interfaces and tolerates slow/noisy clock edges. |
| CLK | Internal clock output / external clock input | Allows synchronous multi-ADC operation or precise timing control via external source. |
| CS | Chip select (active low) | Enables 3-wire mode when hardwired low; serves as frame sync in multi-device daisy chains. |
| IOUT1 / IOUT2 | Programmable excitation current outputs | Deliver 10/210/1000 μA; used to bias RTDs or thermistors with matched drift (±50 ppm/°C matching). |
| AIN1(+) / AIN1(−) AIN2(+) / AIN2(−) REFIN(+)/AIN3(+) / REFIN(−)/AIN3(−) |
Differential analog inputs | Three fully differential input pairs; REFIN pins double as AIN3 when external reference is unused. |
| DOUT/RDY | Data output / conversion ready indicator | Active-low RDY interrupt signals valid data; DOUT shifts out register contents on SCLK falling edge. |
| DIN | Serial data input | Loads configuration, calibration, and control registers via 24-bit command words. |
| AVDD / DVDD / GND | Analog/digital power and ground | Independent AVDD (2.7–5.25 V) and DVDD (2.7–5.25 V) allow mixed-voltage system interfacing. |
Key Features
| Feature | Design Value |
|---|---|
| Simultaneous 50 Hz/60 Hz rejection | 80 dB min at both frequencies using internal clock - eliminates mains interference without external filters. |
| Low-noise in-amp with gain 1–128 | 40 nV rms noise @ 4.17 Hz, gain = 64 - enables direct digitization of µV-level thermocouple outputs. |
| On-chip bias voltage generator | AVDD/2 common-mode output - sets optimal input range for unipolar sensors and reduces external component count. |
| Programmable burnout currents | Enables open-circuit detection in RTD/thermistor leads - critical for safety-critical temperature monitoring. |
| Independent interface supply (DVDD) | Supports 3 V microcontrollers interfacing with 5 V analog sections - simplifies level-shifting requirements. |
| Internal 64 kHz oscillator | Eliminates external crystal/clock source - reduces BOM cost and PCB area in space-constrained designs. |
Applications
| Thermocouple Measurement | RTD-Based Temperature Transmitter |
|---|---|
|
Use Scenario: Measuring J/K-type thermocouples in industrial furnace controllers with cold-junction compensation. IC Role / Device Role / Timing Role: ADC front end performing precision ratiometric digitization of µV-level thermocouple EMF and mV-level CJC sensor output. Use Value: 40 nV rms noise and 50/60 Hz rejection ensure ±0.1°C accuracy without external amplification or notch filtering. |
Use Scenario: 3-wire Pt100 RTD readout in smart pressure transmitters with HART modulation. IC Role / Device Role / Timing Role: Precision ADC with matched 1000 μA excitation currents and burnout detection for fault-tolerant resistance measurement. Use Value: <0.5% current matching and ±50 ppm/°C drift matching enable <0.05% RTD linearity over −40°C to +85°C. |
| Portable Blood Glucose Meter | Gas Chromatography Detector Interface |
|
Use Scenario: Battery-powered handheld glucose meters using amperometric electrochemical sensors. IC Role / Device Role / Timing Role: Low-power ADC capturing nanoamp-level sensor current via programmable gain in-amp and internal reference. Use Value: 400 μA typical current draw and 1 μA power-down mode extend single-CR2032 battery life beyond 2 years. |
Use Scenario: Digitizing low-level FID or TCD detector outputs in benchtop gas chromatographs. IC Role / Device Role / Timing Role: High-resolution ADC with 23-bit effective resolution at 4.17 Hz for integrating slow chromatographic peaks. Use Value: 23-bit effective resolution (Table 6) enables detection of trace analyte concentrations below 1 ppm in calibrated systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision sigma-delta ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7793BRUZ | 24-bit resolution, higher noise floor (85 nV @ 4.17 Hz), same pinout and register map. | Used where >16-bit dynamic range is required (e.g., 6½-digit DVM, high-end lab equipment). | Select AD7793BRUZ only if 24-bit resolution is mandatory; AD7792BRUZ-REEL offers lower cost and identical footprint for 16-bit needs. |
| ADS124S08IPW | 24-bit, integrated PGA (1–128), 2.5 V reference, but no on-chip excitation currents or burnout detection. | Targeted at general-purpose sensor ADC applications without RTD excitation requirements. | Choose ADS124S08IPW when external excitation is acceptable; AD7792BRUZ-REEL integrates all functions needed for RTD/thermocouple systems. |
Compared with AD7793BRUZ, AD7792BRUZ-REEL trades resolution for lower cost and identical integration; compared with ADS124S08IPW, it adds critical RTD-specific features (matched excitation, burnout, bias generator) while maintaining equivalent noise and power performance.
Availability
AD7792BRUZ-REEL is available at Aetrix Electronics and suitable for industrial process control, portable medical instrumentation, and smart transmitter designs requiring stable component supply across extended product lifecycles.
Supply support for AD7792BRUZ-REEL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The AD7792 is part of Analog Devices' precision Σ-Δ ADC product line, designed specifically for high-accuracy, low-power industrial and instrumentation applications where sensor interface integration and DC stability are critical.
FAQ
What is the maximum effective resolution of the AD7792BRUZ-REEL?
The AD7792BRUZ-REEL achieves up to 23-bit effective resolution at 4.17 Hz update rate with gain = 64 and external 2.5 V reference (Table 6). Its guaranteed no-missing-codes performance is 16 bits across all update rates. This resolution is measured as effective number of bits (ENOB) derived from rms noise, not theoretical bit count - the AD7792BRUZ-REEL maintains true 16-bit linearity per specification.
Does the AD7792BRUZ-REEL support external reference inputs?
Yes, the AD7792BRUZ-REEL accepts an external differential reference voltage between REFIN(+) and REFIN(−), with a valid range of 0.1 V to AVDD. When using external reference, the AD7792BRUZ-REEL maintains ±10 μV full-scale error and ±1 ppm/°C gain drift (gain = 1–16). The internal 1.17 V reference remains available as backup or for ratiometric configurations.
How does the AD7792BRUZ-REEL achieve 50 Hz and 60 Hz rejection?
The AD7792BRUZ-REEL achieves simultaneous 50 Hz and 60 Hz rejection through synchronized digital filtering tied to its internal 64 kHz clock. At FS[3:0] = 1010 (4.17 Hz update), it delivers ≥80 dB rejection at both frequencies. This is implemented in firmware-controlled filter coefficients - no external components or configuration changes are needed to activate this feature on the AD7792BRUZ-REEL.
Can the AD7792BRUZ-REEL drive RTD sensors directly?
Yes, the AD7792BRUZ-REEL integrates two matched programmable current sources (IOUT1/IOUT2) delivering 10/210/1000 μA with ±5% initial tolerance and ±50 ppm/°C matching. These can bias 2-/3-wire Pt100 RTDs directly, and the on-chip burnout detection currents enable open-wire fault identification - all without external components.
What is the operating temperature range for the AD7792BRUZ-REEL?
The AD7792BRUZ-REEL is specified for continuous operation from −40°C to +105°C ambient temperature. This range is validated per Analog Devices' Rev. B datasheet (Page 3, Table 1), and applies to all electrical specifications including offset drift (±10 nV/°C), gain drift (±1 ppm/°C), and noise performance. It is qualified for industrial and extended-temperature applications.
AD7792BRUZ-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 470
- Number of Inputs:
- 3
- Input Type:
- Differential
- Data Interface:
- SPI, DSP
- Configuration:
- MUX-ADC
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- 1
- Architecture:
- Sigma-Delta
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 2.7V ~ 5.25V
- Voltage - Supply, Digital:
- 2.7V ~ 5.25V
- Features:
- PGA
- Operating Temperature:
- -40°C ~ 105°C
- Supplier Device Package:
- 16-TSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7792BRUZ-REEL FAQ
1.How can I place an order for AD7792BRUZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7792BRUZ-REEL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AD7792BRUZ-REEL reliable?
The price and inventory of AD7792BRUZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7792BRUZ-REEL is usually 5 days.
3.What payment methods are accepted for AD7792BRUZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7792BRUZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7792BRUZ-REEL?
AD7792BRUZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7792BRUZ-REEL order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AD7792BRUZ-REEL?
For technical support, including AD7792BRUZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7792BRUZ-REEL requirements.
6.How does Aetrix verify that AD7792BRUZ-REEL is sourced from the original manufacturer or authorized distributors?
All AD7792BRUZ-REEL products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AD7792BRUZ-REEL meets industry standards.
7.What is the process for return or replacement of AD7792BRUZ-REEL?
All AD7792BRUZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with AD7792BRUZ-REEL, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AD7792BRUZ-REEL part is unused and in its original packaging.
Return procedure for AD7792BRUZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AD7792BRUZ-REEL Tags
-
ADC081C021CIMKX/NOPB
Texas Instruments
-
MCP3021A5T-E/OT
Microchip Technology
-
TLA2024IRUGR
Texas Instruments
-
MCP3221A5T-E/OT
Microchip Technology
-
MCP3221A5T-I/OT
Microchip Technology
-
MCP3221A4T-E/OT
Microchip Technology
-
MCP3221A6T-E/OT
Microchip Technology
-
MCP3221A0T-E/OT
Microchip Technology
-
MCP3221A1T-E/OT
Microchip Technology
-
ADC121S021CIMFX/NOPB
Texas Instruments
-
MCP3001-I/MS
Microchip Technology
-
MCP3001-I/SN
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
