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Analog Devices Inc. AD7467BRM-REEL7
- Part No.:
- AD7467BRM-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
AD7467BRM-REEL7.pdf
- Description:
- IC ADC 10BIT 1.6V LP 8-MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
AD7467BRM-REEL7 from Analog Devices is a 10-bit, micropower successive approximation ADC operating from 1.6 V to 3.6 V supply, delivering 275 kSPS throughput with 0.63 mW max power dissipation at 3 V and 100 kSPS. It features SPI/QSPI/MICROWIRE/DSP-compatible serial interface, no pipeline delay, and internal VDD-referenced conversion enabling 0 V to VDD analog input range. Used in battery-powered medical sensors and remote data acquisition nodes.
For engineers reviewing the AD7467BRM-REEL7 datasheet, AD7467BRM-REEL7 pinout, AD7467BRM-REEL7 application, or AD7467BRM-REEL7 equivalent, key selection factors include its 10-bit resolution with ±0.5 LSB INL, 61 dB SINAD at 30 kHz, 2.94 μs conversion time, 8 nA typical power-down current, and SOT-23-6 package compatibility with space-constrained portable systems.
Technical Context
The AD7467BRM-REEL7 implements a standard successive approximation register (SAR) architecture with track-and-hold amplifier supporting >3 MHz full-power bandwidth. Conversion is initiated on the falling edge of CS, and data is clocked out MSB-first on SDATA synchronized to SCLK falling edges.
It uses VDD as the internal reference, eliminating external reference components and fixing the analog input range to 0 V to VDD. Power management is handled via automatic power-down after conversion, reducing average current to 8 nA typical when idle, with acquisition time as low as 640 ns at VDD ≥ 1.8 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit SAR ADC - delivers 1,024 discrete output codes for medium-precision sensing |
| Throughput Rate | 275 kSPS maximum - supports real-time sampling of audio-band and control-loop signals |
| Supply Voltage Range | 1.6 V to 3.6 V - enables direct interface with single-cell Li-ion, NiMH, or 3.3 V/2.5 V logic rails |
| Power Dissipation (Normal Mode) | 0.63 mW max at 3 V/100 kSPS - extends battery life in always-on monitoring devices |
| INL / DNL | ±0.5 LSB max each - ensures monotonicity and <0.1% linearity error across full scale |
| Power-Down Current | 8 nA typical - reduces quiescent load during sleep intervals in duty-cycled systems |
| SINAD @ 30 kHz | 61 dB min - provides usable dynamic range for biomedical ECG/EEG front-ends and sensor signal chains |
Pinout & Package
AD7467BRM-REEL7 is housed in a RoHS-compliant 6-lead SOT-23 package (JEDEC MO-178AA), measuring 2.9 mm × 1.6 mm × 1.1 mm, optimized for high-density PCB layouts in portable instrumentation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low digital input initiating conversion and framing serial data transfer; sampled on falling edge |
| VDD | Power Supply | Single 1.6–3.6 V rail powering analog and digital sections; also serves as internal reference voltage |
| GND | Analog Ground | Common reference for VIN, internal circuitry, and noise-sensitive analog paths |
| VIN | Analog Input | Single-ended input accepting 0 V to VDD range; 20 pF input capacitance requires low-impedance drive |
| SDATA | Serial Data Output | Three-state CMOS output delivering 4 leading zeros + 10-bit result MSB-first on SCLK falling edge |
| SCLK | Serial Clock | Input clock controlling both data readout timing and internal conversion clock (12 cycles per conversion) |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline delay | Enables deterministic latency (≤2.94 μs) critical for closed-loop control and time-triggered sampling |
| VDD-referenced conversion | Eliminates external reference IC and associated BOM cost, layout area, and drift sources |
| Flexible serial interface | Native SPI/QSPI/MICROWIRE/DSP compatibility simplifies integration with common microcontrollers |
| Automatic power-down | Reduces average system current without software intervention-ideal for intermittent-sampling architectures |
| Wide supply range (1.6 V) | Supports operation down to near-dead battery voltage, extending usable runtime in coin-cell applications |
Applications
| Portable ECG Monitor | Wireless Sensor Node |
|---|---|
Use Scenario: Continuous acquisition of low-amplitude biopotential signals (0.5–5 mV) from dry electrodes under motion artifacts. IC Role / Device Role / Timing Role: Front-end ADC digitizing conditioned analog output from instrumentation amplifier; synchronized to MCU timer for fixed-rate sampling. Use Value: 10-bit resolution and 61 dB SINAD preserve diagnostic fidelity at 30 kHz bandwidth; 8 nA power-down current minimizes standby drain in battery-operated units. |
Use Scenario: Periodic temperature/humidity/pressure readings transmitted over BLE or LoRaWAN every 10 seconds. IC Role / Device Role / Timing Role: Low-power ADC converting sensor outputs during brief wake-up windows; powered only during measurement burst. Use Value: 0.63 mW active power and automatic shutdown enable >5-year battery life on CR2032; SOT-23-6 footprint saves PCB area in compact modules. |
| Handheld Medical Glucometer | Industrial Isolated Data Logger |
Use Scenario: Single-shot blood glucose measurement triggered by user press, requiring fast stabilization and conversion. IC Role / Device Role / Timing Role: Precision ADC interfacing electrochemical sensor output; CS-driven conversion ensures repeatable timing independent of MCU clock jitter. Use Value: 275 kSPS throughput allows oversampling and digital filtering to suppress noise; ±0.5 LSB INL ensures accurate glucose concentration mapping. |
Use Scenario: Remote monitoring of vibration, current, or voltage in electrically noisy factory environments with galvanic isolation. IC Role / Device Role / Timing Role: Isolated-side ADC feeding isolated SPI interface; operates from local isolated 3.3 V rail derived from flyback converter. Use Value: 1.6 V minimum supply allows stable operation despite isolated supply ripple; 0 V to VDD input range simplifies level-shifting design across isolation barrier. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 10-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7822U | 8-bit resolution, 200 kSPS, 2.7–5.25 V supply, 3.5 mW at 5 V - higher power, wider voltage range | Less precision; suited for cost-sensitive industrial controls where 8-bit suffices | Select if legacy 5 V systems require minimal redesign and 8-bit resolution meets accuracy needs |
| MAX11100ETA+ | 12-bit resolution, 500 kSPS, 2.7–3.6 V supply, 1.25 mW at 3 V - higher speed/resolution, narrower supply range | Higher precision and throughput; requires stable 2.7–3.6 V rail and faster MCU interface | Select when SNR > 70 dB and sub-2 μs conversion are required, and supply regulation supports tighter range |
Compared with ADS7822U and MAX11100ETA+, the AD7467BRM-REEL7 uniquely balances 10-bit precision, ultra-low 1.6 V operation, and 8 nA power-down current-making it optimal for long-life, single-cell battery systems where resolution exceeds 8-bit but 12-bit overhead is unjustified.
Availability
AD7467BRM-REEL7 is available at Aetrix Electronics and suitable for battery-powered medical instruments, remote data acquisition nodes, and isolated industrial loggers requiring stable component supply, consistent parametric performance, and long-term manufacturability assurance.
Supply support for AD7467BRM-REEL7 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, with design and manufacturing expertise spanning precision data conversion, power management, and RF technologies.
The AD7466/AD7467/AD7468 family was designed specifically for ultra-low-power, space-constrained sensing applications-emphasizing micropower operation, wide supply flexibility, and minimal external component count in portable and energy-harvested systems.
FAQ
What is the maximum sample rate supported by the AD7467BRM-REEL7?
The AD7467BRM-REEL7 supports a maximum throughput rate of 275 kSPS, achieved using a 3.4 MHz SCLK and completing conversion in 12 clock cycles. This rate is guaranteed across the full −40°C to +85°C temperature range and 1.6 V to 3.6 V supply range, with no pipeline delay affecting timing predictability.
Does the AD7467BRM-REEL7 require an external reference voltage?
No, the AD7467BRM-REEL7 uses its VDD supply as the internal reference, establishing a 0 V to VDD analog input range. This eliminates the need for external reference ICs or decoupling networks, reducing BOM cost and PCB area-particularly valuable in size- and cost-sensitive portable designs.
What package type is used for the AD7467BRM-REEL7?
The AD7467BRM-REEL7 is supplied in a 6-lead SOT-23 package (JEDEC MO-178AA), with dimensions of 2.9 mm × 1.6 mm × 1.1 mm. This compact, surface-mount package supports high-density layouts and automated assembly, and is distinct from the 8-lead MSOP variant offered for the same AD7467 family.
How does the power-down mode function on the AD7467BRM-REEL7?
The AD7467BRM-REEL7 enters automatic power-down mode after each conversion completes, drawing just 8 nA typical current. No software command is needed-the device transitions seamlessly between active and shutdown states, minimizing average power in duty-cycled systems such as wireless sensor nodes or handheld diagnostics.
What is the integral nonlinearity (INL) specification for the AD7467BRM-REEL7?
The AD7467BRM-REEL7 has a maximum integral nonlinearity of ±0.5 LSB over temperature and supply range, ensuring monotonic behavior and less than 0.05% full-scale linearity error. This level of accuracy supports reliable calibration-free operation in medical and industrial measurement applications where code-to-code consistency is essential.
AD7467BRM-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 200k
- Number of Inputs:
- -
- Input Type:
- -
- Data Interface:
- SPI, DSP
- Configuration:
- -
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- 1
- Architecture:
- -
- Reference Type:
- -
- Voltage - Supply, Analog:
- -
- Voltage - Supply, Digital:
- -
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 8-MSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7467BRM-REEL7 FAQ
1.How can I place an order for AD7467BRM-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7467BRM-REEL7 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 AD7467BRM-REEL7 reliable?
The price and inventory of AD7467BRM-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7467BRM-REEL7 is usually 5 days.
3.What payment methods are accepted for AD7467BRM-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7467BRM-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7467BRM-REEL7?
AD7467BRM-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7467BRM-REEL7 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 AD7467BRM-REEL7?
For technical support, including AD7467BRM-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7467BRM-REEL7 requirements.
6.How does Aetrix verify that AD7467BRM-REEL7 is sourced from the original manufacturer or authorized distributors?
All AD7467BRM-REEL7 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 AD7467BRM-REEL7 meets industry standards.
7.What is the process for return or replacement of AD7467BRM-REEL7?
All AD7467BRM-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD7467BRM-REEL7, 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 AD7467BRM-REEL7 part is unused and in its original packaging.
Return procedure for AD7467BRM-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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