AD9070BR

Overview

The AD9070BR is a monolithic 10-bit, 100 MSPS analog-to-digital converter featuring an on-chip track-and-hold circuit and ECL digital interfaces. It operates with a single -5 V supply or +5 V PECL environment, consuming 600 mW typical power at full speed. The device provides a 230 MHz analog bandwidth and 1 V p-p input range centered at -2.5 V. Key dynamic specifications include a SINAD of 54 dB at 41 MHz and an aperture jitter of 2.5 ps rms. It is housed in a 28-lead SOIC package and functions within the industrial temperature range of -40 °C to +85 °C.

Feature Summary

• Monolithic sampling architecture with integrated track-and-hold circuit for high-speed conversion
• ECL-compatible digital outputs with differential clock input supporting wide logic levels
• Internal -2.5 V voltage reference included in the SOIC package version
• Two's complement output coding with optional out-of-range detection capability

Applications

• Digital communications systems
• Signal intelligence equipment
• Digital oscilloscopes and spectrum analyzers
• Medical imaging devices
• Radar and HDTV applications

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and temperature grade. The BR suffix denotes the industrial grade SOIC variant. Ensure that the procurement source provides valid traceability and authenticity certificates for this Analog Devices component. Cross-reference the datasheet revision to confirm pinout and electrical parameter consistency before finalizing purchase orders.

Selection Notes

Select the AD9070BR when a 10-bit resolution at 100 MSPS is required with ECL interface compatibility. This model includes an internal voltage reference, simplifying board design compared to the DIP version which requires external references. Consider the thermal impedance characteristics of the SOIC package for heat dissipation planning. Verify that the system clock jitter budget accommodates the specified 2.5 ps aperture uncertainty to maintain optimal dynamic performance.

Part Context

The AD9070 belongs to a family of high-speed sampling ADCs from Analog Devices designed for demanding signal processing tasks. The BR variant specifically targets industrial applications requiring robust performance over a wide temperature range. It serves as a bridge between high-frequency analog signals and digital processing systems, offering a balance of speed, resolution, and power consumption suitable for professional data acquisition environments.

Replacement Considerations

The military-grade equivalent is the 5962-9756301HXC, which shares identical electrical specifications but utilizes a ceramic DIP package and operates over an extended temperature range. Designers must account for package differences and the absence of the internal voltage reference in the DIP version when substituting.