Analog Devices Inc. AD9283BRSZ-100

Overview

AD9283BRSZ-100 from Analog Devices is an 8-bit, 100 MSPS monolithic analog-to-digital converter with on-chip track-and-hold, internal 1.25 V reference, and single 3.0 V supply operation (2.7–3.6 V). It delivers 46.5 dB SNR at 41 MHz input frequency, 475 MHz analog bandwidth, and 90 mW power dissipation - optimized for battery-powered digital oscilloscopes and hand-held scopemeters.

For engineers reviewing the AD9283BRSZ-100 datasheet, AD9283BRSZ-100 pinout, AD9283BRSZ-100 application, or AD9283BRSZ-100 equivalent, key selection considerations include its TTL/CMOS-compatible digital outputs with separate VDD pin for 2.5 V/3.3 V logic interfacing, 5 ps rms aperture jitter, and guaranteed no-missing-codes performance across –40°C to +85°C.

Technical Context

The AD9283BRSZ-100 implements a bit-per-stage pipeline ADC architecture with switch-capacitor techniques: five stages resolve the 5 MSBs, feeding a flash converter for the 3 LSBs. On-chip error correction aligns data and corrects stage mismatches, enabling stable 8-bit accuracy at full 100 MSPS rate without external calibration.

Its analog input supports both differential and single-ended modes with internal 0.3×VD biasing, 1 V_p-p nominal range, and 7–13 kΩ input resistance. The ENCODE input is TTL/CMOS-compatible (1.5 V threshold), and timing is synchronized to rising edges with 2.0–3.0 ns output valid time and 4.5–7.0 ns propagation delay.

Key Specifications

Pinout & Package

AD9283BRSZ-100 is housed in a 20-lead SSOP (Shrink Small Outline Package), RS-20 footprint (7.64 mm × 5.21 mm, 0.65 mm pitch), rated for industrial temperature range (–40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD9283BRSZ-100, AD9280ARUZ-100 trades 2-bit resolution for higher power and incompatible supply/pinout, while MAX1186EEE+ offers marginally faster sampling but lacks integrated reference and power-down - making AD9283BRSZ-100 optimal for cost-constrained, battery-operated 8-bit digitizers needing minimal support circuitry.

Availability

AD9283BRSZ-100 is available at Aetrix Electronics and suitable for battery-powered instruments, hand-held scopemeters, and low-cost digital oscilloscopes requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for AD9283BRSZ-100 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, serving industrial, communications, automotive, and consumer markets.

The AD9283 belongs to Analog Devices' precision high-speed ADC product line, designed specifically for portable and cost-sensitive instrumentation where low power, small size, and ease of use supersede ultra-high resolution or ultra-wide bandwidth.

FAQ

What is the absolute maximum analog input voltage for AD9283BRSZ-100?

The absolute maximum analog input voltage for AD9283BRSZ-100 is –0.5 V to VD + 0.5 V, where VD is the analog supply voltage (typically 3.0 V). Exceeding this range risks permanent damage. The recommended full-scale input range is ±512 mV p-p with 1.25 V reference, corresponding to a 1.024 V p-p differential swing. Always observe the –0.5 V to +3.5 V limit under all operating conditions.

Does AD9283BRSZ-100 require an external clock buffer for 100 MSPS operation?

AD9283BRSZ-100 does not require an external clock buffer, but its ENCODE input is highly sensitive to jitter: 5 ps rms aperture uncertainty means that clock source phase noise directly degrades SNR. For production designs targeting >45 dB SNR at 41 MHz input, a low-jitter LVDS or crystal oscillator with <100 fs integrated jitter (12 kHz–20 MHz) is strongly recommended - even though the input is TTL/CMOS-compatible.

Can AD9283BRSZ-100 operate with a 2.5 V digital I/O supply?

Yes, AD9283BRSZ-100 supports 2.5 V digital I/O through its dedicated VDD pin (Pin 15), which accepts 2.5–3.6 V. When VDD = 2.5 V, the digital outputs swing between 0.05 V (logic 0) and 2.95 V (logic 1) - ensuring reliable interfacing with 2.5 V FPGA or ASIC I/O banks without level-shifting circuitry. This capability is explicitly validated in the datasheet's Digital Outputs section.

How does the power-down mode affect the analog front-end of AD9283BRSZ-100?

In power-down mode (PWRDWN = HIGH), AD9283BRSZ-100 disables the internal reference, track-and-hold, and ADC core, reducing total power to 4.2 mW. The analog inputs (AIN/AIN) remain high-impedance but are not actively clamped; external biasing must maintain safe voltage levels. Recovery to full performance requires ~15 encode cycles after PWRDWN returns LOW - during which time output data is invalid.

Is the AD9283BRSZ-100 pinout compatible with other members of the AD9283 family?

Yes, AD9283BRSZ-100 shares identical pinout and package (20-lead SSOP) with AD9283BRSZ-80 and AD9283BRSZ-50. All variants use the same RS-20 footprint, pin assignments, and thermal characteristics. This allows a single PCB layout to support multiple speed grades - simplifying inventory management and enabling last-minute performance binning during manufacturing without hardware changes.