Analog Devices Inc. AD9057BRSZ-RL60

Overview

AD9057BRSZ-RL60 from Analog Devices is an 8-bit, 60 MSPS monolithic analog-to-digital converter with 120 MHz full-power analog bandwidth, internal 2.5 V reference, and track-and-hold circuitry. It operates from a single 5 V analog supply and supports 3 V or 5 V digital I/O, delivering 45.5 dB SINAD at 10.3 MHz input-ideal for QAM demodulator front-ends in cable modems.

For engineers reviewing the AD9057BRSZ-RL60 datasheet, AD9057BRSZ-RL60 pinout, AD9057BRSZ-RL60 application, or AD9057BRSZ-RL60 equivalent, this page delivers verified specifications, validated pin functions, confirmed industrial temperature range (–40°C to +85°C), SSOP-20 package mapping, and two rigorously cross-checked alternative ADCs for direct system-level substitution analysis.

Technical Context

The AD9057BRSZ-RL60 implements a MagAmp/Flash hybrid architecture with three-stage pipelining, enabling 60 MSPS conversion while maintaining 8-bit accuracy and <5 ps rms aperture jitter. Its on-chip track-and-hold captures transient signals up to 120 MHz before digitization, and the offset binary coding ensures deterministic data alignment on the rising edge of ENCODE.

It features dual-supply isolation: VD (5 V) powers analog circuitry including the 2.5 V bandgap reference and T/H, while VDD (3 V or 5 V) independently supplies digital outputs-minimizing noise coupling. Power-down mode reduces dissipation to <10 mW by disabling conversion logic while retaining reference stability.

Key Specifications

Pinout & Package

AD9057BRSZ-RL60 is housed in a 20-lead shrink small outline package (SSOP-20, JEDEC MO-150AE), 7.8 mm × 5.3 mm footprint, 1.75 mm height, with 0.65 mm lead pitch and gull-wing leads.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit, 60 MSPS ADC applications.

Compared with AD9057BRSZ-40 and AD9057BRSZ-80, the AD9057BRSZ-RL60 delivers optimal balance of dynamic performance (45.5 dB SINAD), power efficiency (260 mW), and cost-making it the preferred choice for production designs targeting exactly 60 MSPS operation without overengineering.

Availability

AD9057BRSZ-RL60 is available at Aetrix Electronics and suitable for QAM demodulators, RGB video digitizers, and digital storage read channels requiring stable component supply across extended product lifecycles.

Supply support for AD9057BRSZ-RL60 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 AD9057 family was engineered for cost-sensitive, space-constrained applications demanding high-speed digitization without external support components-targeting communications infrastructure, medical imaging, and industrial test equipment.

FAQ

What is the maximum analog input frequency supported by the AD9057BRSZ-RL60?

The AD9057BRSZ-RL60 has a full-power analog bandwidth of 120 MHz, meaning it accurately digitizes signals up to that frequency with minimal amplitude roll-off. At 76 MHz input, it maintains 43.5 dB SINAD and 6.9-bit ENOB-validating its use in direct IF sampling applications well beyond baseband. This bandwidth is measured under standard conditions (VD = 5 V, f_ENCODE = 60 MSPS, –0.5 dBFS input).

Does the AD9057BRSZ-RL60 require an external reference voltage?

No, the AD9057BRSZ-RL60 includes an integrated 2.5 V bandgap reference (VREF OUT) that can be directly connected to VREF IN to set the ADC's full-scale range. External references are optional and only needed when tighter accuracy (<±0.5%), lower tempco (<±10 ppm/°C), or adjustable gain (±10%) is required-otherwise, the internal reference eliminates BOM cost and layout complexity.

How does the power-down mode affect the digital outputs of the AD9057BRSZ-RL60?

When PWRDN is asserted high, the AD9057BRSZ-RL60 disables its conversion core and drives all eight digital outputs (D7–D0) into a high-impedance state within 200 ns. This prevents bus contention in multi-ADC systems and reduces total power dissipation to <10 mW. The internal 2.5 V reference remains active to minimize wake-up latency-valid output data resumes three encode cycles after PWRDN is deasserted.

What is the recommended decoupling for the VREF OUT pin of the AD9057BRSZ-RL60?

Analog Devices specifies a 0.1 µF ceramic capacitor placed as close as possible between VREF OUT (Pin 2) and GND (Pin 4, 9, or 16). This decoupling is mandatory to suppress high-frequency noise from the internal reference, which would otherwise modulate ADC gain and degrade SNR by >2 dB. No series resistor or ferrite bead is recommended-the capacitor must provide low-impedance shunt to ground at >10 MHz.

Can the AD9057BRSZ-RL60 interface directly with a 3.3 V FPGA I/O bank?

Yes-the AD9057BRSZ-RL60 supports 3 V digital I/O via the VDD pin (Pin 15). When VDD = 3.3 V, the D7–D0 outputs swing from 0.05 V to 2.95 V, meeting LVCMOS33 input thresholds. The ENCODE and PWRDN inputs are TTL/CMOS-compatible with 1.5 V switching thresholds, ensuring reliable logic-level translation without level shifters-verified across –40°C to +85°C.