My Inquiry
My Account
Analog Devices Inc. AD7124-8WBBCPZ-RL7
- Part No.:
- AD7124-8WBBCPZ-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 32-VFQFN Exposed Pad, CSP
- Datasheet:
-
AD7124-8WBBCPZ-RL7.pdf
- Description:
- AD7124-8 8CH 24B ADC
- Quantity:
- Payment:
- Shipping:
Inventory:2,755
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AD7124-8WBBCPZ-RL7 from Analog Devices is a 24-bit sigma-delta ADC with integrated PGA, reference, diagnostics, and channel sequencer-designed for high-precision sensor measurement in automotive and industrial systems. It delivers 24 nV rms noise at 1.17 SPS (gain = 128), supports 8 differential or 15 pseudo-differential inputs, operates from −40°C to +125°C, and is AEC-Q100 qualified.
For engineers reviewing the AD7124-8WBBCPZ-RL7 datasheet, AD7124-8WBBCPZ-RL7 pinout, AD7124-8WBBCPZ-RL7 application, or AD7124-8WBBCPZ-RL7 equivalent, key selection criteria include simultaneous 50/60 Hz rejection at 25 SPS, per-channel configuration support, internal 10 ppm/°C bandgap reference, low-side power switch for bridge sensors, and integrated burnout detection and temperature sensing.
Technical Context
The AD7124-8WBBCPZ-RL7 implements a fully integrated analog front end with a 24-bit Σ-Δ modulator, programmable gain array (1–128), and configurable sinc4/sinc3/fast-settling digital filters. Its crosspoint multiplexer enables flexible routing of up to 16 channels-including analog inputs, diagnostics, and internal sensors-to the ADC core.
It integrates dual excitation current sources (0.1–1000 µA, ±4% initial tolerance), a bias voltage generator (AVDD/2), rail-to-rail analog input buffers for gains >1, and comprehensive diagnostics including CRC, reference detect, overvoltage/undervoltage monitoring, and LDO supervision-all supporting SIL-certifiable system design.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 24-bit no missing codes; 22 noise-free bits at gain = 1 across all power modes |
| RMS Noise | 24 nV (low power, 1.17 SPS, gain = 128) - enables sub-µV signal resolution in battery-powered systems |
| Output Data Rate | 1.17–19,200 SPS across three power modes - balances speed, noise, and current consumption per application need |
| Reference Drift | 10 ppm/°C max (W grade) - ensures stable 2.5 V reference over −40°C to +125°C without external compensation |
| Common-Mode Rejection | 115 dB (gain ≥ 8, DC) - rejects interference from shared sensor grounds or noisy environments |
| Power Supply Range | AVDD: 2.7–3.6 V; IOVDD: 1.65–3.6 V - supports mixed-voltage microcontroller interfaces and low-power operation |
| Diagnostic Coverage | SFF > 90% per IEC 61508 - validated failure modes effects and diagnostic analysis for functional safety compliance |
Pinout & Package
AD7124-8WBBCPZ-RL7 is housed in a 32-lead, 5 mm × 5 mm, 0.95 mm height LFCSP package with exposed thermal pad (EP). The package supports automotive-grade thermal performance and board-level reliability under extended temperature cycling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN0–AIN15 | Analog Input / Excitation / Bias / Reference | Multi-function pins supporting differential/pseudo-differential inputs, programmable excitation currents, VBIAS injection, or REFIN2 connection |
| REFIN1(+), REFIN1(−) | Differential External Reference Input | Accepts external reference up to AVDD; internally buffered option available for improved PSR |
| REFOUT | Internal Reference Output | Provides 2.5 V ±0.2% reference with 10 ppm/°C drift; drives external circuitry or other ADCs |
| DOUT/RDY | Data Ready / Serial Data Output | Open-drain RDY signal indicates conversion completion; also functions as SPI data output (DOUT) |
| CS, SCLK, DIN | SPI Interface Control | 3-wire or 4-wire SPI-compatible interface with Schmitt-triggered SCLK; supports QSPI™ and MICROWIRE™ |
| PSW | Low-Side Power Switch Control | Drives external NMOS switch to power down bridge sensors between conversions-reducing system power by >90% |
| GPO1–GPO4 (P1–P4) | General-Purpose Outputs | Configurable digital outputs for status signaling, LED control, or auxiliary sequencing |
| AVDD, AVSS, DGND, IOVDD | Power Supply Terminals | Separate analog/digital supplies enable noise isolation; IOVDD independent for level-shifting to 1.65–3.6 V logic |
Key Features
| Feature | Design Value |
|---|---|
| Three Configurable Power Modes | Enables dynamic trade-off between current (255 µA to 930 µA), noise (20–24 nV rms), and data rate (1.17–19.2 kSPS) without hardware change |
| Simultaneous 50/60 Hz Rejection | 80+ dB rejection at 25 SPS with single-cycle settling-eliminates need for external notch filters in AC-line-noise-prone environments |
| Per-Channel Configuration | Eight independent setups (gain, filter, ODR, buffer, reference) assignable per input-enables mixed-sensor systems on one ADC |
| Integrated Diagnostics Suite | CRC, reference detect, supply monitors, burnout detection, and memory checksums reduce BOM count and simplify functional safety certification |
| Programmable Excitation Currents | Matched 0.1–1000 µA sources with ±0.5% matching and 5 ppm/°C drift-supports precision RTD, thermistor, and bridge measurements |
| On-Chip Temperature Sensor | ±0.5°C accuracy over full range-provides real-time die temperature for thermal compensation or system health monitoring |
Applications
| Temperature Measurement | Pressure Measurement |
|---|---|
|
Use Scenario: High-accuracy RTD or thermocouple readout in automotive cabin climate control or engine coolant monitoring. IC Role / Device Role / Timing Role: Primary ADC with integrated excitation, cold-junction compensation, and self-calibration-handles sensor linearization and offset correction digitally. Use Value: Eliminates external op-amps, reference buffers, and calibration components; achieves <±0.1°C system accuracy with AEC-Q100 qualification. |
Use Scenario: Strain-gauge-based pressure transducer in brake-by-wire or fuel rail sensing. IC Role / Device Role / Timing Role: Bridge interface with low-side power switch (PSW), matched excitation currents, and 120 dB CMRR at 60 Hz-rejects EMI from adjacent high-current circuits. Use Value: Reduces bridge power dissipation by >95% during idle; enables 24-bit resolution at 100 SPS with <10 ppm INL after system calibration. |
| Industrial Process Control | Smart Transmitter |
|
Use Scenario: 4–20 mA loop-powered field transmitter measuring flow, level, or valve position in hazardous areas. IC Role / Device Role / Timing Role: Precision analog front end with diagnostics, internal reference, and SPI interface-interfaces directly to HART modem and MCU. Use Value: Meets SIL-2 requirements via built-in diagnostics; supports 2-wire loop power with <355 µA mid-power mode current budget. |
Use Scenario: Wireless sensor node for predictive maintenance, transmitting calibrated sensor data via BLE or LoRa. IC Role / Device Role / Timing Role: Low-power measurement hub with automatic channel sequencing, temperature compensation, and sleep-mode wake-up on RDY. Use Value: Achieves 10-year battery life using low-power mode (255 µA) and power-down current <3 µA; integrates all signal chain functions in single 5×5 mm LFCSP. |
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 |
|---|---|---|---|
| AD7124-4BRUZ | 4-channel variant in 24-lead TSSOP; identical architecture, specs, and diagnostics-but fewer inputs and no AEC-Q100 qualification | Used in cost-sensitive industrial instrumentation where channel count ≤4 and automotive qualification is unnecessary | Select when reduced channel count and non-automotive use case allow smaller footprint and lower cost |
| ADS1263IPBSR | Texas Instruments part with 32-bit delta-sigma ADC, 10-MHz SPI, and integrated PGA-but no internal reference drift spec <10 ppm/°C or AEC-Q100 rating | Targeted at high-speed precision lab equipment; lacks automotive-grade reliability and integrated diagnostics coverage | Choose only if higher throughput (up to 38.4 kSPS) and 32-bit resolution outweigh need for functional safety support and guaranteed drift performance |
Compared with AD7124-4BRUZ, the AD7124-8WBBCPZ-RL7 adds four more analog inputs, AEC-Q100 qualification, and tighter 10 ppm/°C reference drift-making it suitable for automotive multi-sensor modules. Versus ADS1263IPBSR, it trades raw resolution for certified diagnostics, lower power, and guaranteed automotive reliability-critical for safety-critical embedded sensing.
Availability
AD7124-8WBBCPZ-RL7 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial process transmitters, smart metering systems, and medical diagnostic equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AD7124-8WBBCPZ-RL7 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, serving industrial, automotive, communications, and healthcare markets since 1965.
The AD7124 family was designed specifically for high-accuracy, low-power, functionally safe sensor measurement in harsh environments-integrating precision analog front ends, diagnostics, and automotive-grade reliability into a single IC.
FAQ
What is the AEC-Q100 qualification status of the AD7124-8WBBCPZ-RL7?
The AD7124-8WBBCPZ-RL7 is AEC-Q100 qualified for automotive applications (Grade 1: −40°C to +125°C). This qualification covers temperature cycling, humidity testing, ESD robustness (4 kV), and failure analysis per the standard-ensuring reliability in engine control, braking, and cabin systems. The W grade designation explicitly confirms this qualification.
Does the AD7124-8WBBCPZ-RL7 support simultaneous 50 Hz and 60 Hz line rejection?
Yes, the AD7124-8WBBCPZ-RL7 achieves simultaneous 50 Hz and 60 Hz rejection exceeding 80 dB at 25 SPS with single-cycle settling. This is enabled by its sinc4 filter configuration and internal clock synchronization-eliminating the need for external notch filters in industrial or automotive environments with mixed AC line noise.
Can the AD7124-8WBBCPZ-RL7 drive external sensors directly without additional components?
Yes, the AD7124-8WBBCPZ-RL7 integrates matched excitation current sources (0.1–1000 µA), a bias voltage generator (AVDD/2), low-side power switch (PSW), and burnout detection-enabling direct connection to RTDs, thermistors, strain gauges, and bridge sensors without external drivers, references, or protection circuitry.
What diagnostic features does the AD7124-8WBBCPZ-RL7 provide for functional safety compliance?
The AD7124-8WBBCPZ-RL7 includes CRC on registers and memory, reference detect, supply voltage monitors (ALDO/DLDO), overvoltage/undervoltage detection on AIN pins, LDO and MCLK/SCLK counters, and checksum-protected ROM-supporting FMEDA with >90% safe failure fraction per IEC 61508, simplifying SIL-2 system certification.
How does the per-channel configuration capability work in the AD7124-8WBBCPZ-RL7?
The AD7124-8WBBCPZ-RL7 provides eight independent configuration registers, each defining gain, filter type, output data rate, buffering, and reference source. Any enabled channel (AIN0–AIN15 or diagnostics) can be assigned one of these configurations-enabling mixed-sensor systems (e.g., RTD + thermocouple + pressure bridge) with optimal settings per channel.
AD7124-8WBBCPZ-RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad, CSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 24
- Sampling Rate (Per Second):
- 19.2k
- Number of Inputs:
- 8, 15
- Input Type:
- Differential, Pseudo-Differential, Single Ended
- Data Interface:
- 3-Wire Serial, 4-Wire Serial, DSP, MICROWIRE, QSPI, SPI
- Configuration:
- MUX-PGA-ADC
- Ratio - S/H:ADC:
- 0:1
- Number of A/D Converters:
- 1
- Architecture:
- Sigma-Delta
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 2.7V ~ 3.6V, ±1.8V
- Voltage - Supply, Digital:
- 1.65V ~ 3.6V
- Features:
- PGA, Temperature Sensor
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- 32-LFCSP (5x5)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7124-8WBBCPZ-RL7 FAQ
1.How can I place an order for AD7124-8WBBCPZ-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7124-8WBBCPZ-RL7 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 AD7124-8WBBCPZ-RL7 reliable?
The price and inventory of AD7124-8WBBCPZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7124-8WBBCPZ-RL7 is usually 5 days.
3.What payment methods are accepted for AD7124-8WBBCPZ-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7124-8WBBCPZ-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7124-8WBBCPZ-RL7?
AD7124-8WBBCPZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7124-8WBBCPZ-RL7 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 AD7124-8WBBCPZ-RL7?
For technical support, including AD7124-8WBBCPZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7124-8WBBCPZ-RL7 requirements.
6.How does Aetrix verify that AD7124-8WBBCPZ-RL7 is sourced from the original manufacturer or authorized distributors?
All AD7124-8WBBCPZ-RL7 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 AD7124-8WBBCPZ-RL7 meets industry standards.
7.What is the process for return or replacement of AD7124-8WBBCPZ-RL7?
All AD7124-8WBBCPZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD7124-8WBBCPZ-RL7, 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 AD7124-8WBBCPZ-RL7 part is unused and in its original packaging.
Return procedure for AD7124-8WBBCPZ-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AD7124-8WBBCPZ-RL7 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…
