Analog Devices Inc. AD9215BRURL7-65

Overview

AD9215BRURL7-65 from Analog Devices is a monolithic, single-supply 10-bit analog-to-digital converter (ADC) with 65 MSPS sampling rate, 3 V operation (2.7–3.3 V), differential input bandwidth of 300 MHz, and on-chip reference and sample-and-hold amplifier. It delivers SNR = 58 dBc and SFDR = 77 dBc at Nyquist, supporting ultrasound equipment and IF sampling in communications receivers.

For engineers reviewing the AD9215BRURL7-65 datasheet, AD9215BRURL7-65 pinout, AD9215BRURL7-65 application, or AD9215BRURL7-65 equivalent, this page provides verified technical context, real-world design meaning for key specs, validated pin functions, confirmed application roles, and two rigorously cross-checked alternative parts for signal acquisition systems requiring high dynamic range at moderate sampling rates.

Technical Context

The AD9215BRURL7-65 implements a multistage differential pipelined ADC architecture with output error correction logic, enabling guaranteed no-missing-codes performance across −40°C to +85°C. Its patented differential sample-and-hold amplifier supports both ac- and dc-coupled inputs with configurable common-mode range and maintains 58 dBc SNR up to 100 MHz input frequency.

A dedicated clock duty cycle stabilizer compensates for wide input clock duty cycle variation without degrading SFDR or SNR, while separate AVDD (3 V) and DRVDD (2.5 V) supplies isolate analog core from digital output drivers-critical for noise-sensitive RF/IF sampling applications.

Key Specifications

Pinout & Package

The AD9215BRURL7-65 is packaged in a 28-lead TSSOP (RU-28) surface-mount package with exposed pad for thermal management. Pin 1 is OR (Out-of-Range indicator); pins 7 and 12 are AVDD; pins 8 and 11 are AGND; pins 15–16 and 25–28 are DNC (Do Not Connect).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar analog-to-digital conversion applications.

Compared with AD9215BCP-65, the AD9215BRURL7-65 offers identical signal integrity and timing behavior but trades thermal efficiency for lower assembly cost and broader distributor availability in TSSOP packaging; versus AD9226ARSZ-65, it delivers 2-bit lower resolution at ~48% less power-making it optimal for portable, cost-sensitive IF digitization where 10-bit fidelity meets system SNR targets.

Availability

AD9215BRURL7-65 is available at Aetrix Electronics and suitable for ultrasound beamforming, IF sampling in wireless infrastructure, and battery-powered scopemeters requiring stable component supply and long-term production continuity.

Supply support for AD9215BRURL7-65 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, headquartered in Norwood, MA, with R&D and manufacturing operations worldwide.

The AD9215 family was designed for high-fidelity, low-power digitization in portable medical, communications, and test equipment-emphasizing integrated reference, robust clock tolerance, and guaranteed linearity over industrial temperature range.

FAQ

What is the maximum analog input frequency supported by the AD9215BRURL7-65?

The AD9215BRURL7-65 features a 300 MHz analog input bandwidth, enabling accurate digitization of signals up to the third Nyquist zone. At 65 MSPS sampling rate, it supports real-time sampling of input frequencies up to 32.5 MHz (Nyquist limit), but undersampling techniques allow capture of higher-frequency IF signals-such as 70 MHz or 100 MHz-provided aliasing is managed through front-end filtering. Measured SNR remains ≥57.5 dBc up to 100 MHz input.

Does the AD9215BRURL7-65 require an external reference voltage?

No, the AD9215BRURL7-65 includes an on-chip 1.0 V reference with ±230 ppm/°C drift over −40°C to +85°C, eliminating need for external reference in most applications. However, it supports external differential reference via REFT/REFB pins for improved stability or custom scaling. The SENSE pin configures internal/external reference mode, and VREF pin serves as reference input/output depending on configuration.

How does the clock duty cycle stabilizer in the AD9215BRURL7-65 improve system robustness?

The clock duty cycle stabilizer in the AD9215BRURL7-65 actively corrects input clock duty cycle deviations between 30% and 70%, maintaining consistent aperture jitter (<0.5 ps rms) and preserving SFDR ≥77 dBc. This eliminates need for precision clock conditioning circuitry-especially valuable in systems using PLL-derived clocks with variable duty cycle-and ensures stable performance across temperature and voltage variations without external duty cycle correction ICs.

What is the pipeline latency of the AD9215BRURL7-65, and how does it affect system timing?

The AD9215BRURL7-65 has a fixed pipeline latency of 5 clock cycles from CLK rising edge to valid D0–D9 output. This deterministic delay enables precise synchronization in multi-channel systems (e.g., ultrasound beamformers) and simplifies FPGA-based data alignment logic. Aperture delay is 2.4 ns, and output delay (t_OD) ranges from 2.5 ns to 4.8 ns depending on load-both values are specified and repeatable, supporting time-critical closed-loop control loops with known timing margins.

Can the AD9215BRURL7-65 operate with a 2.5 V digital supply while using 3 V analog supply?

Yes, the AD9215BRURL7-65 explicitly supports independent analog and digital supplies: AVDD = 2.7–3.3 V powers the ADC core and reference, while DRVDD = 2.25–3.6 V powers the D0–D9 output buffers. Using DRVDD = 2.5 V allows direct interfacing with 2.5 V logic families (e.g., Spartan-6 FPGA I/O banks), reducing level-shifting complexity. Decoupling requires minimum 0.1 µF ceramic capacitor between DRVDD and DRGND, plus recommended 10 µF bulk capacitance.