Analog Devices Inc. AD9283BRS-100

Overview

AD9283BRS-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. 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 AD9283BRS-100 datasheet, AD9283BRS-100 pinout, AD9283BRS-100 application, or AD9283BRS-100 equivalent, key selection considerations include its TTL/CMOS-compatible digital outputs, high-impedance power-down mode (4.2 mW), offset binary coding, and SSOP-20 package compatibility with industrial temperature range (–40°C to +85°C).

Technical Context

The AD9283BRS-100 implements a bit-per-stage pipeline ADC architecture with switch-capacitor techniques, where five MSB stages feed a flash converter for the three LSBs. Its on-chip track-and-hold operates with 5 ps rms aperture jitter and supports both differential and single-ended analog inputs.

Digital outputs are latched with four-pipeline latency, referenced to a separate VDD supply (2.5 V–3.6 V) for flexible logic interfacing. The ENCODE input accepts TTL/CMOS-level clocks with 4.3 ns minimum pulsewidth high, and power-down activation places all D7–D0 outputs in high-impedance state within two clock cycles.

Key Specifications

Pinout & Package

The AD9283BRS-100 is housed in a 20-lead shrink small outline plastic package (SSOP, RS-20), measuring 7.50 mm × 5.38 mm × 1.78 mm, rated for –40°C to +85°C operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD9283BRS-100, AD9280ARSZ-100 trades simplicity for resolution, while MAX1186EEE+ sacrifices integration for marginal speed gain - making AD9283BRS-100 optimal for cost-sensitive, space-constrained, battery-powered acquisition where 8-bit fidelity suffices.

Availability

AD9283BRS-100 is available at Aetrix Electronics and suitable for battery-powered instruments, hand-held scopemeters, and low-cost digital oscilloscopes requiring stable component supply across industrial temperature ranges and long production lifecycles.

Supply support for AD9283BRS-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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving precision instrumentation, industrial automation, and communications markets since 1965.

The AD9283 belongs to Analog Devices' high-speed data converter product line, designed specifically for portable, low-power, and cost-sensitive digitization applications where integration, small footprint, and single-supply operation are critical.

FAQ

What is the absolute maximum analog input voltage for AD9283BRS-100?

The absolute maximum analog input voltage for AD9283BRS-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 specified full-scale input range is ±512 mV p-p (1.024 V p-p) with respect to AIN, and common-mode voltage must remain within ±200 mV. Always observe these limits during signal conditioning and front-end design for AD9283BRS-100.

Does AD9283BRS-100 require an external reference, or can it operate with its internal reference?

AD9283BRS-100 can operate fully with its internal 1.25 V reference - simply short Pin 2 (VREF OUT) to Pin 3 (VREF IN). The internal reference is specified with ±130 ppm/°C tempco and requires a 0.1 µF bypass capacitor on VREF OUT. An external reference may be used for tighter accuracy, but it is not required for standard operation of AD9283BRS-100.

What is the power-down behavior of AD9283BRS-100, and how quickly does it recover?

When PWRDWN (Pin 1) is asserted HIGH, AD9283BRS-100 enters power-down mode within two clock cycles, reducing power dissipation to 4.2 mW and driving all D7–D0 outputs to high-impedance. Recovery to full performance requires approximately 15 clock cycles after PWRDWN returns LOW. This behavior is confirmed in the AD9283BRS-100 datasheet Rev. C, Section "Power-Down Mode".

Can AD9283BRS-100 interface directly with 2.5 V logic systems?

Yes, AD9283BRS-100 supports direct interfacing with 2.5 V logic via its dedicated VDD pin (Pin 15), which powers the digital output buffers. When VDD = 2.5 V, the outputs produce logic-high levels ≥2.45 V and logic-low levels ≤0.05 V - meeting standard 2.5 V CMOS thresholds. This eliminates level-shifting circuitry in AD9283BRS-100 designs targeting 2.5 V FPGA or ASIC interfaces.

What is the aperture jitter specification for AD9283BRS-100, and why does it matter?

AD9283BRS-100 has an aperture uncertainty (jitter) of 5 ps rms, measured at 25°C. This parameter directly limits achievable SNR at high input frequencies: for example, at 41 MHz, 5 ps jitter contributes ~0.5 dB degradation to the theoretical SNR limit. Low jitter is essential for preserving signal integrity in time-domain measurements and high-frequency spectral analysis using AD9283BRS-100.