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AD7124-8BCPZ-RL7
AD7124-8BCPZ-RL7
| Part Number | AD7124-8BCPZ-RL7 |
|---|---|
| Manufacturer | Analog Devices Inc. (ADI) |
| Category | Integrated Circuits (ICs) > Data Acquisition > Analog to Digital Converters (ADC) |
| Description | 8-Channel, Low Noise, Low Power, 24-Bit Sigma-Delta ADC with Integrated PGA and Reference, in a 32-Lead LFCSP Package (Tape and Reel, 7-Inch). |
| Stock Status | In Stock |
| Origin | Original Factory |
Product Overview
The AD7124-8BCPZ-RL7 is an integrated low-power, low-noise 24-bit Sigma-Delta ADC by ADI for precision measurement. It features 8 differential/15 pseudo-differential input channels compatible with RTD, thermocouple and strain gauge sensors. Built-in PGA, excitation currents, reference circuit and diagnostic functions simplify peripheral design. Three adjustable power modes optimize speed or power consumption. Housed in 32-lead LFCSP and shipped in 7-inch tape reel, it fits industrial control, precision instrument and portable medical equipment.
Core Advantages
Ultra-Low Noise & High Resolution
24-bit high resolution with ultra-low noise (24 nV rms @1.17Hz) to capture tiny sensor signal variations accurately.
Adjustable Power Modes
Three power configurations available to balance sampling rate and power draw for battery-powered or high-speed devices.
Integrated Complete Analog Front-End
On-chip PGA, reference and excitation sources reduce external components and save PCB layout space.
Built-In Safety Diagnostics
Onboard CRC, power rail and line detection functions improve fault identification for industrial equipment.
Key Specifications
| Brand | Analog Devices Inc. (ADI) precision Sigma-Delta ADC Series |
|---|---|
| Part Number | AD7124-8BCPZ-RL7 |
| RoHS Status | RoHS Compliant / Lead-Free / Halogen-Free Green Leadframe Array (“Z” suffix) |
| Tape & Reel Spec | 7-inch reel, 1500pcs per reel (RL7 suffix) |
| EDA/CAD Model | 3D STEP Models, Schematic symbols, and PCB footprint landing patterns available upon request |
| Warranty | 1-Year Standard Quality Warranty |
| Package / Case | 32-LFCSP(5mm x 5mm) |
| Mounting Type | Surface Mount |
| Surface Marking / Silkscreen | AD7124-8BCPZ Marking |
| ADC Architecture | 24-Bit Sigma-Delta Architecture |
| Number of Analog Inputs | 8 Differential Channels / 15 Pseudo-Differential Channels |
| Programmable Gain Amplifier (PGA) | Integrated Binary Gain Ranges from 1 to 128 |
| Output Data Rate | Programmable from 9.38 SPS up to 19,200 SPS (Samples Per Second) |
| Internal Reference Voltage | 2.5V Low Drift Integrated Voltage Reference |
| Digital Interface | 3-Wire or 4-Wire SPI (Serial Peripheral Interface), QSPI, MICROWIRE, and DSP Compatible |
| Analog Supply Voltage (AVDD) | 2.7V to 3.6V (Low Power/Mid Power) or 2.9V to 3.6V (Full Power Mode) |
| Digital Supply Voltage (DVDD) | 1.65V to 3.6V for seamless logic level shifting |
| Typical Input Noise | 24 nV rms low-frequency noise in low power mode |
| Built-in Function | Excitation Current Sources, Circuit Burnout Detection, CRC Diagnostic Function |
| Operating Temperature Range | -40°C to +125°C Extended Industrial Operational Thermal Range (TA) |
| Storage Temperature | -65°C ~ +150°C |
| Supply Current (Low Power Mode) | Less than 255μA typical |
| Application Field | Industrial sensor measurement, temperature acquisition, strain gauge, portable medical devices |
Typical Applications
- Temperature Measurement Stations (RTD, Thermocouple, and Thermistor Transducers)
- Industrial Process Control Modules, Distributed Control Systems (DCS), and PLC Input Cards
- Precision Weigh Scales, Strain Gauge Transducers, and Pressure Sensor Interfaces
- Portable Electronic Instrumentation, Chromatography Systems, and Field Data Loggers
- Smart Medical Instrumentation, Patient Monitoring Modules, and Wearable Diagnostics Equipment
Order & Shipping Info
| Minimum Order Quantity (MOQ) | 1 Piece |
|---|---|
| Shipping Time | Shipped within 1-2 business days |
| Delivery Time | 3-7 working days worldwide |
| Shipping Methods | DHL, UPS, FedEx, EMS |
| Payment Methods | T/T (Bank Transfer), PayPal, Credit Card, Western Union |
Technical Support
Send datasheet requests, sample demands, stock or bulk price inquiries via our inquiry form. We will reply within 24 hours.
Frequently Asked Questions
Q1: What does RL7 suffix mean for AD7124-8BCPZ-RL7?
A: RL7 stands for 7-inch tape & reel packaging with 1500pcs per reel, suitable for automatic SMT production, same chip performance as bare parts.
Q2: What’s the advantage of three adjustable power modes?
A: Low power mode cuts current below 255μA for loop-powered sensors; full power mode raises sampling rate and optimizes noise for high-precision monitoring.
Q3: Does this ADC come with built-in diagnostic functions?
A: Yes. It supports SPI CRC verification, reference voltage monitoring, and burnout detection to check broken thermocouple/RTD probes.
Q4: How to maintain high 24-bit conversion accuracy on PCB?
A: Separate analog/digital ground with one star ground point near exposed pad. Add 0.1μF and 10μF decoupling capacitors close to power pins, isolate analog traces from SPI lines.
Q5: What sensors can the AD7124-8 directly connect to?
A: It matches RTDs, thermocouples, strain gauges and pressure sensors without extra signal amplifiers.
Q6: Is AD7124-8BCPZ-RL7 industrial temperature grade?
A: Yes, operating temperature covers -40°C to +125°C for industrial field equipment.
Q7: What digital interfaces does the ADC support?
A: Compatible with 3-wire / 4-wire SPI, QSPI and MICROWIRE for MCU connection.
Q8: Can I get free samples of AD7124-8BCPZ-RL7?
A: We offer small free samples for customer testing, submit your demand via the inquiry form to apply.
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