CDK1307BILP40
CDK1307BILP40 - 13-bit 40MSPS Ultra-Low Power ADC | MaxLinear
The MaxLinear CDK1307BILP40 is an ultra-low-power, 13-bit (configurable to 12-bit) analog-to-digital converter supporting sampling rates from 1 to 40 MSPS, housed in a 40-pin QFN (6x6 mm, ILP40 suffix) package. The part is pin-compatible with the higher-speed CDK1308 family member, allowing designers to drop it onto existing layouts where a 40 MSPS ceiling is adequate.
An ADC (analog-to-digital converter) is a data-acquisition component that samples continuous analog signals and outputs discrete digital codes at a sample rate set by an external clock. ADCs sit at the boundary between the analog front end (sensors, amplifiers, filters) and the digital processing block (DSP, FPGA, microcontroller), and are characterized by resolution (bits), sample rate (MSPS), SNR/SFDR dynamic performance, input bandwidth, and power dissipation. Ultra-low-power ADCs such as the CDK1307 family target portable, battery-powered, and thermally constrained systems where every milliwatt matters.
Key features include a 1.8 V analog core supply, a 1.7 V to 3.6 V digital I/O supply for direct host-MCU interfacing, internal reference circuitry to minimize external component count, and parallel CMOS output that simplifies PCB routing compared with LVDS interfaces. The 73 dB SNR (typical at 8 MHz input) and 33 mW typical dissipation position this part for low-power imaging, instrumentation, and communications receiver applications where thermal management is a design constraint.
Architecturally the CDK1307BILP40 uses a successive-approximation or pipelined core (per the CDK1307 family datasheet) with on-chip sample-and-hold and an internal reference. The wide I/O voltage range (1.7-3.6 V) allows direct connection to 1.8 V, 2.5 V, and 3.3 V MCUs or FPGAs without level shifters, simplifying BOM and reducing board area in multi-rail designs.
Typical applications include portable ultrasound front-ends, handheld instrumentation, low-power wireless baseband receivers, industrial sensor digitizers, and consumer imaging pipelines. The 40 MSPS ceiling is well-matched to narrowband IF sampling in software-defined radio and to video-rate processing at reduced resolutions.
When designing with the CDK1307BILP40, treat the analog and digital supplies as separate rails and place the decoupling network within 5 mm of the supply pins. The internal reference eliminates the need for an external reference IC in most designs, but PCB layout must still follow good ADC practice: a solid analog ground plane, short analog input traces, and the digital outputs routed away from the analog input to avoid digital-feedback coupling.
This page synthesizes distributor inventory, parametric position within the CDK1307 family, application mapping, and practical PCB-layout guidance that goes beyond the bare specification tables published on individual distributor pages.
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