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Analog Devices Inc. AD7273BRMZ-REEL
- Part No.:
- AD7273BRMZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
AD7273BRMZ-REEL.pdf
- Description:
- IC ADC 10BIT SAR 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,995
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Product details
Overview
AD7273BRMZ-REEL from Analog Devices is a 10-bit, 3.45 MSPS successive approximation ADC operating from a single 2.35 V to 3.6 V supply, featuring 74 MHz full-power bandwidth, 61 dB SINAD at 1 MHz input, and 9.6 mW typical power dissipation at 3 V - used in high-speed sensor signal digitization for industrial data acquisition systems.
For engineers reviewing the AD7273BRMZ-REEL datasheet, AD7273BRMZ-REEL pinout, AD7273BRMZ-REEL application, or AD7273BRMZ-REEL equivalent, key selection considerations include its 8-lead TSOT package, external reference flexibility (1.4 V to VDD), no-pipeline-delay serial interface, and −40°C to +125°C operation for rugged embedded measurement designs.
Technical Context
The AD7273BRMZ-REEL implements a charge redistribution DAC-based successive approximation architecture with on-chip track-and-hold, sampling on the falling edge of CS and initiating conversion simultaneously. Its serial interface uses SPI-/QSPI-/MICROWIRE-/DSP-compatible timing with 12 SCLK cycles per conversion at 48 MHz.
It supports flexible power management via partial and full power-down modes (34 μA and 0.1 μA typ), operates with external reference voltage (1.4 V to VDD), and achieves guaranteed no-missed-codes performance across its 10-bit resolution with ±0.5 LSB INL and ±0.5 LSB DNL.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10 bits - guarantees monotonic transfer function and no missed codes up to 10-bit precision |
| Throughput Rate | 3.45 MSPS maximum - enables real-time sampling of signals up to ~1.7 MHz Nyquist bandwidth |
| Supply Voltage | 2.35 V to 3.6 V - compatible with modern low-voltage microcontrollers and battery-powered systems |
| Power Dissipation | 9.6 mW typical at 3 V - supports thermally constrained PCB layouts in compact instrumentation |
| SINAD @ 1 MHz | 61 dB minimum - delivers usable dynamic range for medium-fidelity analog sensing applications |
| Full-Power Bandwidth | 74 MHz @ 3 dB - accepts wideband transducer outputs without front-end attenuation |
| Reference Range | 1.4 V to VDD - allows scalable input range tuning and rail-to-rail reference sourcing |
Pinout & Package
AD7273BRMZ-REEL is housed in an 8-lead TSOT package (3.0 mm × 3.0 mm × 0.8 mm), optimized for space-constrained PCBs and reflow-compatible assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power Supply Input | Single 2.35–3.6 V supply for analog and digital circuitry; requires local 100 nF decoupling |
| SDATA | Serial Data Output | Three-state logic output delivering 10-bit result MSB-first with two leading zeros and four trailing zeros |
| CS | Chip Select (Active Low) | Initiates sampling on falling edge and frames serial data transfer; controls conversion start timing |
| AGND | Analog Ground Reference | Return path for VIN, VREF, and internal analog circuitry; must be star-connected to DGND at single point |
| VREF | External Reference Input | Defines full-scale input range (0 to VREF); requires 10 μF capacitor to AGND for stability |
| SCLK | Serial Clock Input | Drives both data readout and internal conversion clock; supports up to 48 MHz frequency |
| DGND | Digital Ground Reference | Return path for SDATA, CS, and SCLK; must remain within 0.3 V of AGND under all transient conditions |
| VIN | Analog Input Channel | Single-ended input with 42 pF track capacitance; accepts 0 to VREF range with ±1 μA leakage |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline delay | Enables deterministic latency (250 ns max conversion time) for closed-loop control timing predictability |
| Flexible serial interface | Interoperates with SPI/QSPI/MICROWIRE/DSP controllers without protocol translation hardware |
| Wide input bandwidth | 74 MHz full-power bandwidth supports direct digitization of ultrasonic, vibration, and RF-sampled signals |
| Low-power power-down modes | Reduces current to 0.1 μA typ in full power-down, enabling duty-cycled operation in energy-sensitive systems |
| High temperature grade | Specified from −40°C to +125°C, supporting deployment in automotive engine compartments and industrial motor drives |
Applications
| Industrial Process Monitoring | Automotive Sensor Interface |
|---|---|
Use Scenario: Real-time monitoring of pressure, temperature, and flow sensors in PLC I/O modules. IC Role / Device Role / Timing Role: High-speed digitizer capturing transducer outputs at up to 3.45 MSPS with deterministic 250 ns conversion latency. Use Value: Enables sub-microsecond sampling intervals for fast transient detection in safety-critical loop diagnostics. |
Use Scenario: Front-end digitization of knock, camshaft, and exhaust gas oxygen sensor signals in engine control units. IC Role / Device Role / Timing Role: Single-supply 10-bit ADC interfacing directly to conditioned analog sensor outputs with minimal external components. Use Value: Reduces BOM count and board area while meeting AEC-Q100 Grade 1 temperature requirements (−40°C to +125°C). |
| Portable Test Equipment | Motor Drive Current Sensing |
Use Scenario: Battery-powered handheld oscilloscopes and waveform analyzers requiring low power and small form factor. IC Role / Device Role / Timing Role: Primary ADC in compact signal acquisition chain, leveraging 8-lead TSOT package and 9.6 mW operational power. Use Value: Extends battery life via 0.1 μA full power-down mode between triggered acquisitions. |
Use Scenario: Isolated phase current measurement in three-phase inverter stages using shunt resistors. IC Role / Device Role / Timing Role: High-bandwidth digitizer capturing fast current transients during PWM switching edges. Use Value: Supports >100 kHz current loop bandwidth due to 74 MHz full-power bandwidth and no pipeline delay. |
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 |
|---|---|---|---|
| AD7276BRMZ-REEL | 12-bit resolution, 6-lead TSOT package, 3 MSPS throughput, higher 68 dB SINAD | Requires higher-precision signal chains; smaller footprint but no VREF pin - internal reference only | Select when 12-bit accuracy and minimal board area outweigh need for external reference flexibility |
| ADS7822U | 12-bit, 200 kSPS max, 8-lead SOIC, 2.7–5.25 V supply, SPI interface | Lower speed and larger package; lacks high-temp rating (−40°C to +85°C only) | Choose for cost-sensitive, non-ruggedized applications where 200 kSPS suffices and SOIC is preferred |
Compared with AD7273BRMZ-REEL, AD7276BRMZ-REEL offers higher resolution but sacrifices external reference support and thermal robustness, while ADS7822U trades speed and temperature range for legacy package compatibility and lower cost in low-throughput systems.
Availability
AD7273BRMZ-REEL is available at Aetrix Electronics and suitable for industrial process monitoring, automotive sensor interface, portable test equipment, and motor drive current sensing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AD7273BRMZ-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, serving industrial, automotive, communications, and healthcare markets since 1965.
The AD7273BRMZ-REEL belongs to Analog Devices' high-speed SAR ADC product line, engineered for precision, low-latency digitization in space- and power-constrained embedded systems operating across harsh environmental conditions.
FAQ
What is the maximum sampling rate supported by the AD7273BRMZ-REEL?
The AD7273BRMZ-REEL supports a maximum throughput rate of 3.45 MSPS, achieved with a 48 MHz SCLK and 12-cycle serial interface timing. This corresponds to a minimum conversion period of approximately 290 ns, enabling real-time capture of signals with bandwidths up to ~1.7 MHz under Nyquist criteria.
Does the AD7273BRMZ-REEL require an external voltage reference?
Yes, the AD7273BRMZ-REEL requires an external reference applied to the VREF pin, which sets the full-scale input range from 0 V to VREF. The reference voltage must be between 1.4 V and VDD, and a 10 μF capacitor is required between VREF and AGND for stability and noise rejection.
What package type is used for the AD7273BRMZ-REEL?
The AD7273BRMZ-REEL is packaged in an 8-lead TSOT (Thin Small Outline Transistor) package measuring 3.0 mm × 3.0 mm × 0.8 mm. This RoHS-compliant, lead-free package supports standard reflow soldering and provides superior thermal performance for high-density PCB layouts.
How does the AD7273BRMZ-REEL handle power management in low-duty-cycle applications?
The AD7273BRMZ-REEL supports two power-down modes: partial (34 μA typ) and full (0.1 μA typ at −40°C to +85°C). These are controlled via the standard serial interface, allowing rapid wake-up and conversion initiation - ideal for burst-mode acquisition in battery-powered instruments.
Is the AD7273BRMZ-REEL compatible with common microcontroller SPI peripherals?
Yes, the AD7273BRMZ-REEL features an SPI-/QSPI-/MICROWIRE-/DSP-compatible serial interface. It uses CS-active-low framing, SCLK-driven data output on falling edges, and MSB-first transmission - requiring no additional level-shifting or protocol translation when interfaced with ARM Cortex-M, PIC, or MSP430 microcontrollers.
AD7273BRMZ-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 3M
- Number of Inputs:
- 1
- Input Type:
- Single Ended
- Data Interface:
- SPI, DSP
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External
- Voltage - Supply, Analog:
- 2.35V ~ 3.6V
- Voltage - Supply, Digital:
- 2.35V ~ 3.6V
- Features:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- 8-MSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7273BRMZ-REEL FAQ
1.How can I place an order for AD7273BRMZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7273BRMZ-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 AD7273BRMZ-REEL reliable?
The price and inventory of AD7273BRMZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7273BRMZ-REEL is usually 5 days.
3.What payment methods are accepted for AD7273BRMZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7273BRMZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7273BRMZ-REEL?
AD7273BRMZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7273BRMZ-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 AD7273BRMZ-REEL?
For technical support, including AD7273BRMZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7273BRMZ-REEL requirements.
6.How does Aetrix verify that AD7273BRMZ-REEL is sourced from the original manufacturer or authorized distributors?
All AD7273BRMZ-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 AD7273BRMZ-REEL meets industry standards.
7.What is the process for return or replacement of AD7273BRMZ-REEL?
All AD7273BRMZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with AD7273BRMZ-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 AD7273BRMZ-REEL part is unused and in its original packaging.
Return procedure for AD7273BRMZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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