Analog Devices Inc. AD7276YUJZ-REEL7

Overview

AD7276YUJZ-REEL7 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-ideal for high-speed sensor signal digitization in space-constrained industrial data acquisition systems.

For engineers reviewing the AD7276YUJZ-REEL7 datasheet, AD7276YUJZ-REEL7 pinout, AD7276YUJZ-REEL7 application, or AD7276YUJZ-REEL7 equivalent, this page provides verified technical context, validated pin functions, confirmed dynamic/DC specifications, real-world application mappings, and two rigorously cross-checked alternative parts with documented functional and parametric differences.

Technical Context

The AD7276YUJZ-REEL7 implements a track-and-hold amplifier with 55 MHz full-power bandwidth and 18 ps aperture jitter, enabling accurate sampling of wideband signals up to 1 MHz. Conversion is initiated on the falling edge of CS and completed in 291 ns (14 SCLK cycles at 48 MHz), with serial output delivered MSB-first as two leading zeros + 12 data bits + two trailing zeros.

It uses VDD as its reference source, eliminating external reference components while maintaining 0 V to VDD input range. Power management includes full power-down mode (0.1 μA typical) and partial power-down, with digital I/Os compatible with SPI/QSPI/MICROWIRE/DSP interfaces across −40°C to +125°C.

Key Specifications

Pinout & Package

AD7276YUJZ-REEL7 is housed in a 6-lead TSOT (Thin Small Outline Transistor) package, 2.1 mm × 1.6 mm × 0.55 mm, with exposed pad for thermal enhancement and standard JEDEC moisture sensitivity level 1 handling.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed SAR ADC applications.

Compared with AD7276YUJZ-REEL7, AD7476AYRMZ-REEL7 trades compactness for reference flexibility and slightly higher power, while ADS7822U sacrifices speed and integration for extreme low-power operation-neither is pin-compatible, and both require PCB redesign for substitution.

Availability

AD7276YUJZ-REEL7 is available at Aetrix Electronics and suitable for industrial motor control, portable medical instrumentation, automotive battery monitoring, and test & measurement data loggers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for AD7276YUJZ-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 R&D and manufacturing infrastructure spanning North America, Europe, and Asia.

The AD7276YUJZ-REEL7 belongs to Analog Devices' precision high-speed SAR ADC product line, engineered specifically for space-constrained, wide-bandwidth applications demanding low latency, low power, and guaranteed monotonicity across automotive and industrial temperature ranges.

FAQ

What is the maximum sampling frequency supported by the AD7276YUJZ-REEL7?

The AD7276YUJZ-REEL7 supports a maximum throughput rate of 3 MSPS, achieved with a 48 MHz SCLK and 14 SCLK-cycle conversion sequence. This corresponds to a minimum conversion time of 291 ns and enables accurate digitization of input signals up to ~1.5 MHz under Nyquist criteria. The part maintains full specification compliance across its −40°C to +125°C operating range at this rate.

Does the AD7276YUJZ-REEL7 require an external voltage reference?

No, the AD7276YUJZ-REEL7 uses an internal reference derived from the VDD supply, supporting an analog input range of 0 V to VDD. This eliminates the need for external reference components, reducing system cost and PCB area. However, VDD must be stable and low-noise, as any ripple or drift directly impacts ADC accuracy and SNR performance.

What is the purpose of the two leading and two trailing zeros in the AD7276YUJZ-REEL7 serial data frame?

The AD7276YUJZ-REEL7 outputs a 16-bit serial frame: two leading zeros + 12 data bits + two trailing zeros, transmitted MSB-first on the SDATA line. The leading zeros synchronize the host controller's data capture window, while the trailing zeros provide timing margin for CS deassertion and bus release-ensuring robust communication at 48 MHz SCLK without requiring precise timing alignment from the host.

How does the AD7276YUJZ-REEL7 manage power in low-duty-cycle applications?

The AD7276YUJZ-REEL7 offers two power-down modes: partial power-down (34 μA typical) and full power-down (0.1 μA typical). In full power-down, the internal reference and track-and-hold are disabled, reducing current to near-zero between conversions. Recovery time from full power-down is 1 μs, allowing rapid reactivation for burst-mode sampling without sacrificing system-level energy efficiency.

Is the AD7276YUJZ-REEL7 pin-compatible with other members of the AD727x family?

Yes, the AD7276YUJZ-REEL7 shares identical 6-lead TSOT pinout and interface protocol with AD7277YUJZ-REEL7 (10-bit) and AD7278YUJZ-REEL7 (8-bit), enabling hardware reuse across resolution tiers. All three support the same VDD range, timing specifications, and serial framing-only the number of valid data bits differs, making firmware adaptation straightforward for resolution-scaling designs.