Texas Instruments ADS5237IPAG

Overview

ADS5237IPAG from Texas Instruments is a dual, 10-bit, 65MSPS pipelined analog-to-digital converter operating from a single +3.3V supply. It features internal reference (2.0V differential), 61.7dBFS SNR at 5MHz input, ±0.1LSB DNL, and TQFP-64 package. It serves as the front-end digitizer in multichannel communications IF processing and medical imaging systems.

For engineers reviewing the ADS5237IPAG datasheet, ADS5237IPAG pinout, ADS5237IPAG application, or ADS5237IPAG equivalent, key selection criteria include dual-channel 65MSPS sampling with PLL-based timing adjustment, internal/external reference flexibility, over-range flag support per channel, and 3-state digital outputs for multiplexed PCB interconnects.

Technical Context

The ADS5237IPAG implements two independent pipelined ADC cores sharing a common clock domain, each with dedicated sample-and-hold amplifiers optimized for transformer-coupled differential inputs. Its error correction logic ensures no missing codes and maintains ±0.1LSB DNL across temperature.

Timing is managed via an integrated PLL that accepts 20–65MSPS input clocks and generates internally adjusted sampling edges; when disabled, it supports 2–30MSPS with strict duty-cycle control. The serial interface (SEN/SCLK/SDATA) enables register configuration of output format, channel enable, and power-down states.

Key Specifications

Pinout & Package

TQFP-64 package with exposed thermal pad (PAG suffix); 0.5mm lead pitch; JEDEC MO-220 compliant; RoHS-compliant matte tin lead finish.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-channel, 10-bit, high-speed ADC applications.

Compared with ADS5237IPAG, ADS5232IPAP trades speed for lower power and cost in fixed-rate systems, while AD9236BCPZ-65 offers higher fidelity per channel but demands duplicated hardware and external timing design - making ADS5237IPAG optimal for integrated dual-channel IF digitization with minimal support circuitry.

Availability

ADS5237IPAG is available at Aetrix Electronics and suitable for communications base stations, medical ultrasound systems, and automated test equipment requiring stable component supply across extended production lifecycles.

Supply support for ADS5237IPAG 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

Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in high-performance data converters.

The ADS5237IPAG belongs to TI's high-speed ADC product line, designed specifically for multichannel, wide-dynamic-range digitization in communications infrastructure and precision instrumentation applications.

FAQ

What is the maximum sampling rate supported by the ADS5237IPAG?

The ADS5237IPAG supports a maximum sampling rate of 65MSPS when its integrated PLL is enabled. With PLL disabled, the device operates up to 30MSPS, requiring tight control of input clock duty cycle (45–55%) for stable performance. This dual-mode capability makes ADS5237IPAG adaptable to both high-throughput and low-jitter clocking architectures without redesigning the timing subsystem.

Does the ADS5237IPAG require external reference components?

No, the ADS5237IPAG includes an internal 2.0V reference and operates fully functional without external reference components. However, the INT/EXT pin allows disabling the internal reference to use external REFT/REFB inputs - enabling precise gain and offset matching across multiple ADS5237IPAG devices in multichannel systems such as phased-array receivers or synchronized data acquisition racks.

How does the over-range detection work on the ADS5237IPAG?

The ADS5237IPAG provides dedicated OVRA and OVRB output pins that assert high when the respective channel's analog input exceeds the full-scale range. Detection occurs within one sample period, and the flag remains asserted until the next valid sample confirms return within range. This enables rapid front-end gain reduction in AGC loops - critical for handling burst-mode signals in wireless base stations and radar receivers using ADS5237IPAG.

Can the digital outputs of the ADS5237IPAG be individually disabled?

Yes, the ADS5237IPAG supports per-channel 3-state control: OEA pin disables channel A outputs, and OEB pin disables channel B outputs. Both default to enabled (logic low). This feature allows time-division multiplexing of both channels onto a shared 10-bit data bus or facilitates boundary-scan testing without signal contention - a key advantage over single-output ADCs when integrating ADS5237IPAG into space-constrained PCB layouts.

What package type and thermal characteristics does the ADS5237IPAG have?

The ADS5237IPAG uses a TQFP-64 package (PAG suffix) with 10mm × 10mm footprint and 0.5mm lead pitch. Its thermal resistance is θJA = 42.8°C/W and θJC = 18.7°C/W, supporting operation from –40°C to +85°C ambient. The exposed thermal pad must be soldered to a solid ground plane for reliable heat dissipation - especially important given its 366mW typical power draw with internal reference active.