Texas Instruments ADS5232IPAG

Overview

ADS5232IPAG from Texas Instruments is a dual, 12-bit, 65MSPS pipelined analog-to-digital converter operating from a single +3.3V supply. It features internal reference (2.0V REFT/1.0V REFB), 70.7dBFS SNR at 5MHz input, ±0.3LSB DNL, and TQFP-64 package. It serves in high-fidelity IF sampling for communications base stations.

For engineers reviewing the ADS5232IPAG datasheet, ADS5232IPAG pinout, ADS5232IPAG application, or ADS5232IPAG equivalent, key selection considerations include dual-channel simultaneous sampling, PLL-enabled timing/duty-cycle adjustment, over-range flag support per channel, and serial register programmability for output format and power-down control.

Technical Context

The ADS5232IPAG employs a switched-capacitor pipeline architecture with digital error correction logic to guarantee no missing codes and ±0.3LSB DNL across temperature. Its differential sample-and-hold amplifier supports up to 300MHz analog input bandwidth and provides excellent common-mode noise immunity.

It integrates a PLL for clock duty-cycle adjustment (45–55%) and flexible reference configuration: internal (2.0V/1.0V) or external (1.875–2.05V top, 0.95–1.125V bottom). The serial interface (SEN/SCLK/SDATA) enables real-time register control of output format (offset binary or two's complement), channel enable/disable, and PLL state.

Key Specifications

Pinout & Package

TQFP-64 package with exposed thermal pad; 0.5mm pitch; 10mm × 10mm body; RoHS-compliant; rated for –40°C to +85°C operation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-channel, 12-bit, high-speed ADC applications.

Compared with ADS5232IPAG, ADS5231IPAG offers identical performance per channel at lower cost and power but lacks dual-channel coherence; ADS5272IPAG trades parallel simplicity for JESD204B scalability and higher speed, demanding FPGA redesign and increased thermal management.

Availability

ADS5232IPAG is available at Aetrix Electronics and suitable for communications base stations, test equipment, medical ultrasound imaging, and CCD digitizing systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for ADS5232IPAG 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 leadership in high-performance data converters.

The ADS5232IPAG belongs to TI's high-speed ADC portfolio designed specifically for demanding communications, instrumentation, and imaging applications requiring dual-channel simultaneity, low power, and guaranteed linearity.

FAQ

What is the maximum sampling rate supported by the ADS5232IPAG?

The ADS5232IPAG supports up to 65MSPS when its internal PLL is enabled. With PLL disabled, the maximum rate drops to 30MSPS, and strict 48–52% clock duty cycle control becomes mandatory above that threshold. All AC specifications-including 70.7dBFS SNR and 86dBc SFDR-are validated at 65MSPS with internal reference and 5MHz input.

Does the ADS5232IPAG require an external reference voltage?

No-the ADS5232IPAG includes an internal reference generating 2.0V (REFT) and 1.0V (REFB) with ±35mV trimming tolerance. External reference mode is optional and supports 1.875–2.05V (top) and 0.95–1.125V (bottom) inputs. Internal reference reduces BOM count and improves tracking in multichannel systems.

How is dual-channel synchronization ensured in the ADS5232IPAG?

The ADS5232IPAG uses a single shared clock (CLK) and aperture circuitry for both channels, guaranteeing simultaneous sampling with zero inter-channel skew. Timing diagrams confirm identical aperture delay (2.1ns) and data latency (6 clocks) for Channel A and Channel B-enabling coherent I/Q demodulation without post-processing alignment.

Can the ADS5232IPAG output format be changed during operation?

Yes-the ADS5232IPAG supports runtime reconfiguration of output coding via its serial interface. Setting bit D0 in the serial register toggles between straight offset binary (default) and binary two's complement. This change takes effect immediately on the next conversion cycle without reset or power cycle.

What is the purpose of the OVRA and OVRB pins on the ADS5232IPAG?

OVRA and OVRB are dedicated open-drain over-range indicator flags-one per channel-that assert high when the differential analog input exceeds the full-scale range (e.g., >±1.0V with internal reference). These signals feed directly into FPGA or microcontroller GPIOs to trigger automatic gain control (AGC) loops, preventing saturation in dynamic RF front ends.