ADC1115S125HN/C1:5

Analog To Digital Converters (ADC) Overview

The ADC1115S125 is a single-channel, 11-bit pipelined Analog-to-Digital Converter (ADC) optimized for high dynamic performance and low power consumption at sample rates up to 125 Msps. It features an integrated input buffer that maintains constant low input impedance across a wide frequency range, ensuring consistent performance from baseband to frequencies exceeding 170 MHz. The device supports flexible digital output standards, including CMOS and Low Voltage Differential Signaling (LVDS) Double Data Rate (DDR). Powered by a single 3 V analog supply and a separate digital supply, it includes an SPI interface for configuration of full-scale voltage ranges from 1 V to 2 V peak-to-peak.

Analog To Digital Converters (ADC) Feature Summary

• 11-bit resolution with 125 Msps sampling rate and 600 MHz input bandwidth
• Integrated input buffer providing constant low input impedance and kickback isolation
• Configurable digital outputs supporting both CMOS and LVDS DDR standards
• SPI programmable full-scale input range from 1 V (p-p) to 2 V (p-p)
• Duty cycle stabilizer and fast Out-of-Range (OTR) detection

Analog To Digital Converters (ADC) Applications

• Wireless and wired broadband communications
• Software defined radio
• Ultrasound equipment
• Imaging systems
• Spectral analysis

Analog To Digital Converters (ADC) Procurement Notes

Verify the package designation HVQFN40 (SOT618-6) matches the design requirements. Confirm the operating temperature range covers -40 °C to +85 °C. Ensure the board layout accommodates the thermal characteristics, specifically the junction-to-ambient thermal resistance of 30.5 K/W, to maintain safe junction temperatures under maximum load conditions.

Analog To Digital Converters (ADC) Selection Notes

Select this component when high dynamic performance is required at intermediate frequencies due to the integrated input buffer. Choose CMOS outputs for simpler interface designs or LVDS DDR for noise immunity in high-speed environments. Verify that the system clock can be driven differentially (LVPECL) or single-ended (LVCMOS) as per the available drive modes. Consider the power dissipation of 840 mW in active mode for thermal management planning.

Analog To Digital Converters (ADC) Part Context

The ADC1115S125 belongs to the ADC11xxS series of high-speed ADCs. It is pin-compatible with the ADC1415S, ADC1215S, and ADC1015S series, allowing for potential upgrades or downgrades in resolution while maintaining the same footprint. This compatibility facilitates design reuse across different product tiers requiring varying bit depths at similar sampling speeds.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.