Analog Devices Inc. AD9214BRSZ-80

Overview

AD9214BRSZ-80 from Analog Devices is a 10-bit, 80 MSPS monolithic analog-to-digital converter with on-chip track-and-hold, single 3.3 V supply operation, 300 MHz analog bandwidth, and selectable 1 V_p-p/2 V_p-p input range - used in ultrasound front-ends and broadband wireless receivers.

For engineers reviewing the AD9214BRSZ-80 datasheet, AD9214BRSZ-80 pinout, AD9214BRSZ-80 application, or AD9214BRSZ-80 equivalent, key selection criteria include SNR at 39 MHz (55 dB), power consumption (285 mW at full rate), ENOB (9.0 bits), differential nonlinearity (±0.5 LSB), and 28-SSOP package compatibility with industrial temperature range (−40°C to +85°C).

Technical Context

The AD9214BRSZ-80 implements a bit-per-stage pipeline architecture with switch-capacitor techniques for 7 MSBs and a 3-bit flash sub-ADC, enabling high-speed conversion with built-in error correction. Its differential analog input stage is internally biased at AVDD/3, supporting both ac- and dc-coupled inputs while maintaining common-mode rejection.

It features dual-supply operation: AVDD powers analog circuitry and internal timing, while DrVDD independently supplies digital outputs to interface with 2.5 V or 3.3 V logic. The ENCODE input accepts TTL/CMOS-compatible clocks with aperture jitter of 3 ps rms, and the PWRDN pin enables 30 mW sleep mode with 15-cycle wake-up latency.

Key Specifications

Pinout & Package

The AD9214BRSZ-80 is housed in a 28-lead SSOP (Shrink Small Outline Package), 5.3 mm × 10.2 mm body, 0.65 mm lead pitch, rated for −40°C to +85°C industrial operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD9214BRSZ-80, AD9215BCPZ-80 offers higher SNR and smaller footprint but sacrifices internal reference convenience, while ADS5271IPFP adds serial interface and PLL at significantly higher power and package complexity - making AD9214BRSZ-80 optimal for cost-sensitive, self-contained, parallel-output applications.

Availability

AD9214BRSZ-80 is available at Aetrix Electronics and suitable for ultrasound imaging front-ends, broadband wireless receivers, and hand-held scopemeters requiring stable component supply across extended production lifecycles.

Supply support for AD9214BRSZ-80 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, communications, automotive, and healthcare markets since 1965.

The AD9214 product line delivers cost-optimized, low-power, monolithic ADCs for portable and embedded instrumentation - designed specifically for applications demanding simplicity, small size, and reliable performance without external support components.

FAQ

What is the maximum analog input frequency supported by the AD9214BRSZ-80?

The AD9214BRSZ-80 has an analog input bandwidth of 300 MHz, meaning it can accurately digitize signals with fundamental frequencies up to 300 MHz before significant amplitude roll-off occurs. However, its 80 MSPS sampling rate limits usable Nyquist bandwidth to 40 MHz; higher-frequency inputs require undersampling or bandpass sampling techniques with appropriate anti-alias filtering.

Does the AD9214BRSZ-80 require an external reference voltage?

No - the AD9214BRSZ-80 includes an internal 1.25 V reference that is enabled by connecting REFSENSE (Pin 3) to AGND. In this configuration, REF (Pin 4) becomes a buffered output. An external reference is optional and only required when higher precision or temperature stability than the internal reference provides is needed.

How does the DFS/GAIN pin configure input range and data format on the AD9214BRSZ-80?

The DFS/GAIN pin (Pin 2) determines both analog input range and output data format: tied to AVDD → 1 V_p-p input + twos complement; tied to AGND → 1 V_p-p input + offset binary; tied to REF → 2 V_p-p input + twos complement; left floating → 2 V_p-p input + offset binary. This eliminates external configuration logic in most implementations.

What is the power consumption of the AD9214BRSZ-80 in normal and power-down modes?

The AD9214BRSZ-80 consumes 285 mW at full 80 MSPS operation (typical) and reduces to 30 mW in power-down mode when PWRDN (Pin 14) is asserted HIGH. Power-down mode disables internal circuits and places all digital outputs (D0–D9, OR) in high-impedance state, enabling rapid low-power standby in battery-operated systems.

Can the AD9214BRSZ-80 interface directly with 2.5 V logic families?

Yes - the AD9214BRSZ-80 uses a separate DrVDD supply pin (Pins 16, 24) for digital outputs, allowing it to drive 2.5 V CMOS/TTL logic directly when DrVDD is set to 2.5 V. This eliminates level-shifting components and simplifies interface design with FPGAs or ASICs using 2.5 V I/O standards.