AD15700BCA

Overview

The AD15700BCA is an obsolete Analog Devices precision analog I/O port integrating a 16-bit SAR ADC, a 14-bit voltage-output DAC, and two high-speed amplifiers in a single 144-lead CSPBGA package. The ADC operates at up to 1 MSPS with a typical S/(N+D) of 90 dB at 250 kHz input frequency and features no pipeline delay. The DAC provides a settling time of 1 µs. The dual amplifiers offer 80 MHz bandwidth and rail-to-rail input/output capabilities. The device supports SPI/QSPI/Microwire/DSP interfaces and functions within an industrial temperature range of –40°C to +85°C.

Feature Summary

• Integrated 16-bit, 1 MSPS SAR ADC with 2.5 LSB max INL and no pipeline delay
• 14-bit serial-input DAC with 1 µs settling time and 92 dB typical SNR
• Two 80 MHz amplifiers with rail-to-rail input/output and 30 V/µs slew rate
• Built-in center-tapped resistor networks with 2 ppm/°C ratio tracking for gain setting

Applications

• Optical MEMS mirror control systems
• Industrial process control loops
• High-density data acquisition instrumentation
• Communication signal conditioning

Procurement Notes

The AD15700BCA is classified as obsolete by the manufacturer. Verification of current availability requires checking authorized distributors for remaining stock or surplus inventory. Designers should confirm lead times and authenticity carefully due to the component's discontinued status.

Selection Notes

Select this component for applications requiring maximum circuit density and area limitation where separate ADC, DAC, and amplifier ICs would consume excessive board space. It is suitable for designs needing simultaneous high-resolution sampling and precise analog output generation with integrated buffering.

Part Context

This part belongs to the AD15700 series of analog I/O ports. The BCA suffix indicates the –40°C to +85°C industrial temperature range and the 144-lead CSPBGA package option. Other variants include evaluation boards such as the AD15700/PCB.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, designers must evaluate modern multi-channel data converters or discrete solutions that replicate the integrated functionality.