Texas Instruments THS4501IDR

Overview

THS4501IDR from Texas Instruments is a high-performance fully differential amplifier optimized for precision analog signal conditioning in high-speed data acquisition systems. It delivers 370 MHz small-signal bandwidth, –90 dBc third-order intermodulation distortion at 30 MHz, and 2800 V/μs slew rate under ±5 V supply, enabling clean 14-bit ADC interfacing up to 40 MHz in wireless receiver chains and instrumentation front-ends.

For engineers reviewing the THS4501IDR datasheet, THS4501IDR pinout, THS4501IDR application, or THS4501IDR equivalent, this page provides verified technical context, validated pin functions, confirmed package mapping (SOIC-8), real-world application cards, and two rigorously cross-checked alternative parts with documented functional and electrical differences.

Technical Context

The THS4501IDR employs a fully differential architecture with independent output common-mode voltage control via VOCM pin, supporting precise DC-coupled level shifting between single-ended sources and differential ADC inputs. Its input common-mode range extends to the negative rail (–5.7 V at ±5 V supply), enabling direct connection to ground-referenced sensors without level-shifting circuitry.

Unlike the THS4500IDR, the THS4501IDR omits power-down functionality-confirmed by absence of PD pin function and identical pinout with NC on Pin 7-making it suitable for always-on, low-latency signal paths where quiescent current stability (23–34 mA) and fast settling (6.3 ns to 0.1%) are prioritized over standby mode.

Key Specifications

Pinout & Package

THS4501IDR is housed in an 8-pin SOIC package (D suffix) with exposed pad not connected internally-no thermal pad soldering required. Pin assignments are electrically validated per TI SLOS350F Rev. October 2011.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar fully differential amplifier applications.

Compared with THS4500IDR, THS4501IDR eliminates power-down complexity for always-on systems, while LMH5401RTVT trades input flexibility for ultra-wideband performance-making THS4501IDR the balanced choice for 30–400 MHz instrumentation requiring robustness, simplicity, and temperature stability.

Availability

THS4501IDR is available at Aetrix Electronics and suitable for wireless infrastructure, medical imaging, automated test equipment, and industrial data acquisition systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for THS4501IDR 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-speed amplifier design and manufacturing.

The THS4501IDR belongs to TI's high-linearity fully differential amplifier product line, engineered specifically for demanding signal chain applications where distortion, noise, and DC precision must coexist at multi-hundred-MHz bandwidths.

FAQ

What is the maximum operating temperature range for the THS4501IDR?

The THS4501IDR is rated for operation from –40°C to +85°C (I-suffix grade), with guaranteed performance across this full industrial temperature range. Electrical characteristics-including bandwidth, IMD3, and output swing-are specified at both extremes and +25°C, ensuring reliability in harsh environments such as outdoor base stations or factory-floor test racks where ambient temperatures exceed 70°C.

Does the THS4501IDR support single-supply operation?

Yes, the THS4501IDR supports true single-supply operation from 4.5 V to 15 V. When powered from +5 V (VS+ = 5 V, VS− = GND), its input common-mode range extends from –0.7 V to +2.6 V at +25°C, allowing direct interface with ground-referenced sources. Output common-mode is set via VOCM, enabling compatibility with ADCs requiring 0.5–4.5 V common-mode levels.

How does the THS4501IDR differ from the THS4500IDR?

The THS4501IDR is identical to the THS4500IDR in all AC/DC specifications and pinout except Pin 7: THS4501IDR has NC (no connect), while THS4500IDR uses it as a power-down control (PD). This makes THS4501IDR ideal for systems requiring continuous operation without risk of unintended disablement-critical in medical ultrasound or radar beamforming where latency and reliability are paramount.

What load drive capability does the THS4501IDR provide?

The THS4501IDR delivers ±7.4 V differential output swing into 1 kΩ at +85°C and sustains 100 mA output current into 20 Ω loads. This enables direct driving of 50 Ω transmission lines (with appropriate termination) and high-capacitance ADC inputs without external buffers-reducing bill-of-materials and board area in compact RF modules.

Is the THS4501IDR compatible with 14-bit ADCs operating at 80 MSps?

Yes, the THS4501IDR is explicitly characterized for 14-bit operation through 40 MHz. Its –90 dBc third-order IMD at 30 MHz and 6.3 ns settling time to 0.1% ensure >12.5 ENOB when driving 80 MSps ADCs like the ADS5400, meeting the dynamic range and timing accuracy requirements of high-fidelity data acquisition without post-processing correction.