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Analog Devices Inc. AD7276BUJZ-500RL7
- Part No.:
- AD7276BUJZ-500RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
AD7276BUJZ-500RL7.pdf
- Description:
- IC ADC 12BIT SAR TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:6,881
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Product details
Overview
AD7276BUJZ-500RL7 from Analog Devices is a 12-bit, 3 MSPS successive approximation ADC in a 6-lead TSOT package, operating from 2.35 V to 3.6 V supply. It delivers 70 dB SNR at 1 MHz input, features no pipeline delay, and uses internal VDD-referenced conversion for 0 V to VDD analog input range-enabling high-fidelity signal acquisition in portable instrumentation and motor control feedback loops.
For engineers reviewing the AD7276BUJZ-500RL7 datasheet, AD7276BUJZ-500RL7 pinout, AD7276BUJZ-500RL7 application, or AD7276BUJZ-500RL7 equivalent, this page provides verified technical context, real-world timing behavior, validated pin functions, confirmed power-down current (0.1 μA), and cross-referenced alternatives with documented functional and packaging differences.
Technical Context
The AD7276BUJZ-500RL7 implements a standard SAR architecture with track-and-hold acquisition time of 60 ns minimum and aperture jitter of 18 ps typ. Conversion is initiated on the falling edge of CS and completed in 291 ns max (14 SCLK cycles at 48 MHz), with serial data output MSB-first as two leading zeros + 12 bits + two trailing zeros.
It uses VDD as its reference source, eliminating external reference components and enabling full-scale input range from 0 V to VDD. The SPI-/QSPI-/MICROWIRE-/DSP-compatible serial interface operates with SCLK up to 48 MHz (B grade) and supports flexible clock-speed management for power scaling across throughput rates.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - delivers 1 LSB = VDD/4096 quantization step for precision measurement applications. |
| Throughput Rate | 3 MSPS - enables real-time sampling of signals up to 1.5 MHz Nyquist bandwidth. |
| SNR @ 1 MHz | 70 dB typ - supports >11.3 ENOB for clean digitization of RF IF or audio-band signals. |
| Power Consumption | 12.6 mW typ at 3 V / 3 MSPS - enables battery-powered operation with low thermal load in compact layouts. |
| Power-Down Current | 0.1 μA typ - reduces system standby power without requiring external biasing circuitry. |
| Analog Input Range | 0 V to VDD - eliminates level-shifting requirements when interfacing with rail-to-rail sensors or op-amps. |
| Full Power Bandwidth | 55 MHz @ 3 dB - accepts wideband inputs such as ultrasound preamp outputs or motor phase currents. |
Pinout & Package
AD7276BUJZ-500RL7 is housed in a 6-lead TSOT package (2.9 mm × 1.6 mm × 0.8 mm), optimized for space-constrained PCBs and thermally efficient in low-power systems.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VDD | Power supply input | Supplies all analog and digital circuitry; also serves as internal reference source for full-scale range definition. |
| 2 - GND | Analog ground reference | Single-point return path for VIN and internal T/H amplifier; must be routed separately from digital ground to minimize noise coupling. |
| 3 - VIN | Analog input channel | Single-ended input accepting 0 V to VDD; 42 pF input capacitance in track mode requires careful driver impedance matching. |
| 4 - SCLK | Serial clock input | Controls both data transfer timing and internal conversion clock; supports up to 48 MHz for maximum throughput. |
| 5 - SDATA | Serial data output | Three-state CMOS output delivering 12-bit result MSB-first with fixed framing (2 leading + 2 trailing zeros). |
| 6 - CS | Chip select / conversion trigger | Active-low signal that initiates sampling on falling edge and frames serial readout; no pipeline delay ensures deterministic latency. |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline delay | Guarantees deterministic 291 ns conversion latency from CS falling edge to data ready-critical for closed-loop control timing. |
| VDD-referenced conversion | Eliminates need for external reference IC or resistor divider, reducing BOM count and layout area in cost-sensitive designs. |
| Flexible serial clock management | Allows SCLK frequency scaling down to 500 kHz while maintaining functionality-enabling dynamic power optimization in variable-rate systems. |
| Low-power shutdown mode | 0.1 μA typical quiescent current enables microamp-level system sleep states without sacrificing wake-up speed or accuracy. |
| Wide input bandwidth | 55 MHz full-power bandwidth supports direct digitization of fast transients in motor current sensing or ultrasonic receivers. |
Applications
| Portable Medical Instrumentation | Industrial Motor Control Feedback |
|---|---|
|
Use Scenario: Digitizing ECG or pressure sensor outputs in handheld diagnostic devices with strict battery life targets. IC Role / Device Role / Timing Role: High-speed, low-noise front-end ADC capturing physiological waveforms at ≥2 kSPS with minimal power overhead. Use Value: 70 dB SNR at 1 MHz and 12.6 mW consumption enable >24-hour runtime on coin-cell batteries while preserving diagnostic fidelity. |
Use Scenario: Sampling phase currents in BLDC inverters for field-oriented control (FOC) in robotics and HVAC drives. IC Role / Device Role / Timing Role: Real-time current monitor interfacing directly with isolated amplifiers and feeding PWM-triggered sampling windows. Use Value: 60 ns acquisition time and deterministic 291 ns latency allow precise current capture aligned to switching edges, minimizing torque ripple. |
| Wireless Sensor Node Front-End | Test & Measurement Signal Capture |
|
Use Scenario: Low-power data acquisition node measuring temperature, vibration, or acoustic emissions in remote industrial assets. IC Role / Device Role / Timing Role: Standalone ADC paired with ultra-low-power MCU, entering full shutdown between bursts of 3 MSPS sampling. Use Value: 0.1 μA shutdown current and VDD-referenced operation eliminate auxiliary supplies-reducing component count and leakage paths. |
Use Scenario: Embedded digitizer in benchtop oscilloscopes or automated test equipment requiring moderate resolution and high sample rate. IC Role / Device Role / Timing Role: High-fidelity acquisition stage preceding FPGA-based decimation and analysis pipelines. Use Value: 55 MHz analog bandwidth and 70 dB SNR support accurate reconstruction of multi-MHz signals without aliasing filters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 12-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7476ARTZ-REEL7 | Same 12-bit resolution and 6-lead TSOT package; lower throughput (1 MSPS), higher INL (±2 LSB max vs. ±1 LSB), no guaranteed no-missed-codes spec. | Better suited for low-speed, cost-sensitive sensor interfaces where 3 MSPS is unnecessary. | Select AD7476ARTZ-REEL7 only if throughput ≤1 MSPS suffices and budget constraints outweigh SNR/latency requirements. |
| ADS7822U | 12-bit, 200 kSPS max, 8-lead SOIC; uses external reference, higher power (1.2 mW at 200 kSPS), wider temp range (−40°C to +85°C only). | Targeted at legacy industrial PLC I/O modules where SOIC footprint and external reference flexibility are prioritized over speed or size. | Choose ADS7822U only when SOIC compatibility or external reference control is mandatory-and 3 MSPS performance is not required. |
Compared with AD7276BUJZ-500RL7, AD7476ARTZ-REEL7 trades speed and linearity for lower cost, while ADS7822U sacrifices throughput and package density for SOIC compatibility and external reference control-neither offers pin-to-pin or functional equivalence at 3 MSPS with VDD referencing.
Availability
AD7276BUJZ-500RL7 is available at Aetrix Electronics and suitable for portable medical instrumentation, industrial motor control feedback, wireless sensor node front-ends, and test & measurement signal capture requiring stable component supply and long-term production continuity.
Supply support for AD7276BUJZ-500RL7 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.
The AD7276BUJZ-500RL7 belongs to the AD727x family of high-speed, low-power SAR ADCs designed specifically for space- and power-constrained applications demanding 3 MSPS throughput without pipeline latency or external references.
FAQ
What is the maximum sampling rate supported by the AD7276BUJZ-500RL7?
The AD7276BUJZ-500RL7 supports a maximum throughput rate of 3 MSPS under B-grade conditions with 48 MHz SCLK. This is achieved using a 14-cycle serial interface with 60 ns minimum track-and-hold acquisition time. At lower SCLK frequencies (e.g., 16 MHz), the device operates at reduced rates (1 MSPS for Y grade), but the AD7276BUJZ-500RL7 datasheet specifies 3 MSPS as its rated maximum performance point.
Does the AD7276BUJZ-500RL7 require an external voltage reference?
No, the AD7276BUJZ-500RL7 uses an internal reference derived from VDD, enabling a full-scale analog input range of 0 V to VDD. This eliminates the need for external reference components, simplifies layout, and reduces BOM cost-confirmed in the General Description and Functional Block Diagram sections of the AD7276BUJZ-500RL7 datasheet.
What is the power consumption of the AD7276BUJZ-500RL7 during active conversion?
The AD7276BUJZ-500RL7 consumes 12.6 mW typical at 3 V supply and 3 MSPS throughput. This corresponds to 4.2 mA typical IDD under those conditions. Power scales linearly with throughput and supply voltage, and drops to 0.1 μA in full power-down mode-values verified in Table 2 (AD7276 Specifications) of the AD7276BUJZ-500RL7 datasheet.
How does the AD7276BUJZ-500RL7 handle serial data framing?
The AD7276BUJZ-500RL7 outputs data in a fixed 16-bit frame: two leading zeros, followed by 12 bits of conversion result (MSB first), then two trailing zeros. This framing is synchronized to SCLK falling edges and begins after CS assertion. The pattern is explicitly defined in the Pin Function Descriptions section for SDATA in the AD7276BUJZ-500RL7 datasheet.
Is the AD7276BUJZ-500RL7 pin-compatible with other members of the AD727x family?
Yes-the AD7276BUJZ-500RL7 shares identical 6-lead TSOT pinout with AD7277BUJZ-500RL7 and AD7278BUJZ-500RL7. All three variants use the same VDD, GND, VIN, SCLK, SDATA, and CS connections. However, resolution (12/10/8-bit), throughput (3/3.45/4 MSPS), and dynamic performance differ-so firmware and signal chain design must match the selected variant's specifications.
AD7276BUJZ-500RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 12
- 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:
- Supply
- Voltage - Supply, Analog:
- 2.35V ~ 3.6V
- Voltage - Supply, Digital:
- 2.35V ~ 3.6V
- Features:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- TSOT-6
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7276BUJZ-500RL7 FAQ
1.How can I place an order for AD7276BUJZ-500RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7276BUJZ-500RL7 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 AD7276BUJZ-500RL7 reliable?
The price and inventory of AD7276BUJZ-500RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7276BUJZ-500RL7 is usually 5 days.
3.What payment methods are accepted for AD7276BUJZ-500RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7276BUJZ-500RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7276BUJZ-500RL7?
AD7276BUJZ-500RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7276BUJZ-500RL7 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 AD7276BUJZ-500RL7?
For technical support, including AD7276BUJZ-500RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7276BUJZ-500RL7 requirements.
6.How does Aetrix verify that AD7276BUJZ-500RL7 is sourced from the original manufacturer or authorized distributors?
All AD7276BUJZ-500RL7 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 AD7276BUJZ-500RL7 meets industry standards.
7.What is the process for return or replacement of AD7276BUJZ-500RL7?
All AD7276BUJZ-500RL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD7276BUJZ-500RL7, 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 AD7276BUJZ-500RL7 part is unused and in its original packaging.
Return procedure for AD7276BUJZ-500RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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