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Analog Devices Inc. AD7192BRUZ-REEL
- Part No.:
- AD7192BRUZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 24-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AD7192BRUZ-REEL.pdf
- Description:
- IC ADC 24BIT SIGMA-DELTA 24TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:7,616
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Product details
Overview
AD7192BRUZ-REEL from Analog Devices is a 24-bit sigma-delta ADC with integrated PGA, designed for high-precision DC-coupled measurement front ends. It delivers 11 nV RMS noise at 4.7 Hz (gain = 128), supports up to 4.8 kHz output data rate, features 2 differential or 4 pseudo-differential inputs, and operates from 3 V to 5.25 V AVDD with 4.35 mA total current draw - enabling high-resolution weigh scale and strain gage transducer interfaces.
For engineers reviewing the AD7192BRUZ-REEL datasheet, AD7192BRUZ-REEL pinout, AD7192BRUZ-REEL application, or AD7192BRUZ-REEL equivalent, key selection criteria include its 24-bit no-missing-codes resolution, simultaneous 50/60 Hz rejection capability, internal 4.92 MHz clock, 4 general-purpose digital outputs, and TSSOP-24 package compatibility with industrial analog input modules and medical instrumentation signal chains.
Technical Context
The AD7192BRUZ-REEL implements a sinc4/sinc3 digital filter architecture with selectable chop mode, directly determining RMS noise (e.g., 11 nV @ 4.7 Hz), settling time, and 50/60 Hz rejection depth (≥120 dB with external clock). Its programmable gain array (1–128) and dual reference inputs (REFIN1, REFIN2) enable flexible bipolar/unipolar sensor interfacing without external amplification.
It integrates an on-chip channel sequencer for automatic multi-channel conversion across AIN1–AIN4, a temperature sensor (±2°C accuracy), bridge power-down switch (10 Ω RON), and burnout currents (500 nA) - all controlled via SPI-compatible 3-wire serial interface with Schmitt-triggered SCLK and DOUT/RDY dual-function pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RMS Noise | 11 nV @ 4.7 Hz, gain = 128 - enables sub-microvolt-level resolution in low-speed precision weighing systems |
| Resolution | 24-bit no missing codes - guarantees monotonicity and full-scale linearity for calibration-critical applications |
| Output Data Rate | 4.7 Hz to 4.8 kHz - supports both ultra-low-noise static measurements and dynamic process monitoring |
| Common-Mode Rejection | 120 dB @ 50/60 Hz - eliminates mains interference in industrial PLC analog input modules |
| Gain Drift | 1 ppm/°C - ensures stable gain over temperature without recalibration in embedded instrumentation |
| Offset Drift | 5 nV/°C (chop enabled) - minimizes thermal zero-shift in unattended long-duration data acquisition |
| Power Supply | AVDD: 3–5.25 V; DVDD: 2.7–5.25 V - allows independent analog/digital rail optimization for noise isolation |
| Package | 24-lead TSSOP - surface-mount compatible with standard reflow profiles and space-constrained PCB layouts |
Pinout & Package
AD7192BRUZ-REEL is housed in a 24-lead TSSOP package (θJA = 128°C/W), with exposed pad not internally connected. Pin functions are validated per Analog Devices Rev. A datasheet Figure 5 and Table 5.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN1, AIN2 | Differential Input Pair | Primary fully differential analog input channel; supports ±VREF/gain range with buffered/unbuffered modes |
| AIN3, AIN4 | Differential Input Pair | Secondary fully differential input; shares same PGA and filter path as AIN1/AIN2 |
| AINCOM | Pseudo-Differential Reference | Common-mode reference for AIN1–AIN4 when configured as four single-ended inputs |
| REFIN1(+), REFIN1(−) | Main Reference Input | Primary differential reference input (1 V to AVDD); sets full-scale range for ADC conversion |
| P0/REFIN2(−), P1/REFIN2(+) | Alternate Reference or GPIO | Configurable as secondary reference (REFSEL = 1) or general-purpose digital outputs (P0, P1) |
| DOUT/RDY | Serial Data Output / Conversion Ready | Open-drain capable dual-function pin: outputs conversion data and asserts low when new result is ready |
| SCLK, CS, DIN | 3-Wire SPI Interface | CMOS-compatible, Schmitt-triggered SCLK enables noise-immune communication in industrial environments |
| BPDSW | Bridge Sensor Power Switch | Low-RON (10 Ω max) switch to ground for powering Wheatstone bridges only during conversion - reduces self-heating error |
Key Features
| Feature | Design Value |
|---|---|
| Simultaneous 50 Hz/60 Hz rejection | 120 dB minimum rejection using internal notch filtering - eliminates need for external line-frequency filters in global deployments |
| Zero-latency mode | Ensures every conversion settles before next sample - critical for closed-loop control and real-time feedback systems |
| On-chip temperature sensor | ±2°C accuracy after user calibration at 25°C - enables on-board thermal compensation without external sensors |
| Automatic channel sequencer | Hardware-managed round-robin conversion across up to 4 enabled inputs - reduces host MCU firmware overhead |
| Internal 4.92 MHz clock | Factory-trimmed ±4% accuracy - eliminates crystal BOM cost and layout area while supporting precise ODR timing |
| Burnout current source | 500 nA on analog inputs - detects open-circuit sensor faults in strain gage and RTD applications |
Applications
| Weigh Scales | Strain Gage Transducers |
|---|---|
|
Use Scenario: High-accuracy platform scales for laboratory and industrial use requiring <10 ppm repeatability over temperature. IC Role / Device Role / Timing Role: Primary sigma-delta ADC front end, digitizing mV-level bridge outputs with 24-bit resolution and 11 nV noise floor. Use Value: Enables 100,000+ count readability with built-in 50/60 Hz rejection - eliminating manual averaging or external notch filters. |
Use Scenario: Load cell interfaces in hydraulic press monitoring and structural health sensing systems. IC Role / Device Role / Timing Role: Precision analog front end with BPDSW-controlled excitation and burnout current fault detection. Use Value: Reduces thermal drift error via 5 nV/°C offset drift and enables open-wire diagnostics without added circuitry. |
| PLC Analog Input Modules | Medical Instrumentation |
|
Use Scenario: 16-channel isolated analog input cards for industrial automation requiring 24-bit resolution and IEC 61000-4-5 compliance. IC Role / Device Role / Timing Role: Channel-sequenced ADC with programmable gain and simultaneous line-frequency rejection per channel. Use Value: Supports mixed-sensor inputs (thermocouples, RTDs, voltage) on single chip - reducing component count and calibration complexity. |
Use Scenario: Patient-connected devices such as infusion pump pressure monitors and portable ECG front ends. IC Role / Device Role / Timing Role: Low-power, low-noise ADC with internal temperature sensor for real-time thermal compensation. Use Value: Meets IEC 60601-1 creepage requirements via TSSOP isolation and achieves <1 µV p-p noise in battery-powered operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-precision sigma-delta ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7190BRUZ | 24-bit, 4.8 kHz max ODR, but lacks internal clock and 50/60 Hz simultaneous rejection; no BPDSW or burnout current | Requires external crystal and separate line-rejection filtering; unsuitable for self-contained bridge sensor designs | Select AD7190BRUZ only when board space permits external clock and system-level 50/60 Hz mitigation is already implemented |
| ADS1256IPWR | 24-bit, 30 kSPS max, but higher 150 nV RMS noise @ 30 SPS; no integrated 50/60 Hz rejection; single-ended-only reference | Lacks simultaneous line-frequency rejection and requires external PGA for low-level signals; no on-chip temperature sensor | Choose ADS1256IPWR for higher-speed applications where noise >10× higher is acceptable and external filtering is preferred |
Compared with AD7192BRUZ-REEL, AD7190BRUZ offers identical resolution but requires external timing and filtering infrastructure, while ADS1256IPWR trades noise performance and integrated features for raw speed - making AD7192BRUZ-REEL the optimal choice for self-contained, low-drift, mains-immune precision measurement.
Availability
AD7192BRUZ-REEL is available at Aetrix Electronics and suitable for weigh scales, strain gage transducers, and PLC analog input modules requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for AD7192BRUZ-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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with design centers worldwide and ISO 9001-certified manufacturing.
The AD7192BRUZ-REEL belongs to Analog Devices' precision sigma-delta ADC product line, engineered specifically for high-resolution, low-drift industrial and medical measurement systems requiring integrated PGA, reference, and digital filtering.
FAQ
What is the maximum output data rate of the AD7192BRUZ-REEL?
The AD7192BRUZ-REEL supports a maximum output data rate of 4.8 kHz when chop is disabled and the sinc4 filter is selected. At this rate, noise performance degrades to 1.2 µV RMS (gain = 1), but it remains suitable for dynamic sensor monitoring where speed outweighs ultra-low-noise requirements. The AD7192BRUZ-REEL maintains 24-bit no-missing-codes resolution across its full ODR range.
Does the AD7192BRUZ-REEL support simultaneous 50 Hz and 60 Hz rejection?
Yes, the AD7192BRUZ-REEL provides simultaneous 50 Hz and 60 Hz rejection up to 120 dB minimum when using the external clock option and configuring the REJ60 bit appropriately. This feature is implemented in hardware within the digital filter block and does not require external components or firmware intervention - a key differentiator of the AD7192BRUZ-REEL versus earlier-generation sigma-delta converters.
What package type is used for the AD7192BRUZ-REEL?
The AD7192BRUZ-REEL is supplied in a 24-lead TSSOP package (RoHS-compliant, lead-free), with thermal resistance θJA = 128°C/W. The package has no internal connection to the exposed pad, and pinout matches the standard Analog Devices AD7192 footprint - ensuring drop-in compatibility with existing PCB layouts designed for the AD7192 family.
Can the AD7192BRUZ-REEL operate with separate analog and digital supplies?
Yes, the AD7192BRUZ-REEL features independent AVDD (3 V to 5.25 V) and DVDD (2.7 V to 5.25 V) supplies, allowing optimized noise isolation - for example, AVDD = 5 V for analog headroom and DVDD = 3.3 V for logic compatibility. Ground separation (AGND/DGND) is required, with recommended star-point connection at the device to minimize digital switching noise coupling into the analog path.
How many analog input channels does the AD7192BRUZ-REEL support?
The AD7192BRUZ-REEL supports two fully differential input channels (AIN1–AIN2 and AIN3–AIN4) or four pseudo-differential inputs (AIN1–AINCOM, AIN2–AINCOM, AIN3–AINCOM, AIN4–AINCOM). Channel selection and sequencing are managed by the on-chip hardware sequencer, which can be programmed to cycle through any combination of enabled inputs without host processor intervention - a core capability of the AD7192BRUZ-REEL.
AD7192BRUZ-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 24-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 24
- Sampling Rate (Per Second):
- -
- Number of Inputs:
- 2, 4
- Input Type:
- Differential, Pseudo-Differential
- Data Interface:
- SPI, DSP
- Configuration:
- MUX-PGA-ADC
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- 1
- Architecture:
- Sigma-Delta
- Reference Type:
- External
- Voltage - Supply, Analog:
- 3V ~ 5.25V
- Voltage - Supply, Digital:
- 2.7V ~ 5.25V
- Features:
- PGA
- Operating Temperature:
- -40°C ~ 105°C
- Supplier Device Package:
- 24-TSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7192BRUZ-REEL FAQ
1.How can I place an order for AD7192BRUZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7192BRUZ-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 AD7192BRUZ-REEL reliable?
The price and inventory of AD7192BRUZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7192BRUZ-REEL is usually 5 days.
3.What payment methods are accepted for AD7192BRUZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7192BRUZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7192BRUZ-REEL?
AD7192BRUZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7192BRUZ-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 AD7192BRUZ-REEL?
For technical support, including AD7192BRUZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7192BRUZ-REEL requirements.
6.How does Aetrix verify that AD7192BRUZ-REEL is sourced from the original manufacturer or authorized distributors?
All AD7192BRUZ-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 AD7192BRUZ-REEL meets industry standards.
7.What is the process for return or replacement of AD7192BRUZ-REEL?
All AD7192BRUZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with AD7192BRUZ-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 AD7192BRUZ-REEL part is unused and in its original packaging.
Return procedure for AD7192BRUZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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