Texas Instruments THS3001IDGNR

Overview

THS3001IDGNR from Texas Instruments is a high-speed current-feedback operational amplifier designed for large-signal, wideband applications requiring fast transient response. It delivers 420MHz small-signal bandwidth (G = 1), 6500V/μs slew rate at ±15V supply, 40ns settling time to 0.1%, ≤3mV input offset voltage, and –96dBc THD at 1MHz - enabling use in ultra-fast ADC/DAC buffering and base station signal chains.

For engineers reviewing the THS3001IDGNR datasheet, THS3001IDGNR pinout, THS3001IDGNR application, or THS3001IDGNR equivalent, key selection criteria include its current-feedback architecture's gain-independent bandwidth control, low distortion across video and RF frequencies, thermal performance in HVSSOP-8, and compatibility with ±4.5V to ±16V dual supplies or 9V–32V single supplies.

Technical Context

The THS3001IDGNR implements a dielectrically isolated complementary bipolar (HVBiCOM) process with GHz f_T NPN/PNP transistors, enabling true current-feedback topology where bandwidth is set primarily by feedback resistor value-not gain-allowing independent optimization of speed and gain. Its transresistance-based internal architecture yields high open-loop transimpedance (2.4MΩ at ±15V) and low input impedance at the inverting node (15Ω).

It operates in a single functional mode supporting both split-supply (±4.5V to ±16V) and single-supply (9V–32V) configurations. Input common-mode range extends to ±13.2V at ±15V supply, output swing reaches ±12.8V into 1kΩ, and quiescent current remains stable at 6.6–9mA across temperature and supply conditions.

Key Specifications

Pinout & Package

The THS3001IDGNR is packaged in an 8-pin HVSSOP (DGN) with 0.65mm pitch, 3mm × 4.9mm footprint, and exposed thermal pad for enhanced power dissipation (R_θJB = 29.6°C/W).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed current-feedback amplifier applications.

Compared with THS3001IDGNR, THS3091DR trades slew rate for bandwidth and lower power, while LMH6723MA/NOPB sacrifices bandwidth for higher slew and simpler packaging - making THS3001IDGNR the balanced choice for video, comms, and imaging where both 420MHz BW and 6500V/μs are simultaneously required.

Availability

THS3001IDGNR is available at Aetrix Electronics and suitable for communications infrastructure, medical imaging front-ends, broadcast video distribution, and test & measurement equipment requiring stable component supply and guaranteed long-term manufacturability.

Supply support for THS3001IDGNR 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, embedded processing, and high-performance analog ICs for industrial, automotive, and communications markets.

The THS3001IDGNR belongs to TI's high-speed current-feedback amplifier product line, engineered specifically for wideband signal chain applications demanding simultaneous high bandwidth, low distortion, and fast settling - including base station transceivers, ultrasound receivers, and professional video equipment.

FAQ

What is the maximum recommended feedback resistor value for stable operation of the THS3001IDGNR?

The THS3001IDGNR achieves optimal stability and bandwidth trade-off with a 1kΩ feedback resistor at unity gain. At ±15V supply and G = 2, 680Ω is recommended; at G = 5, 560Ω is specified. Increasing R_F beyond these values reduces loop gain and degrades distortion and phase margin - the THS3001IDGNR datasheet explicitly warns against using R_F > 1.5kΩ in production designs.

Does the THS3001IDGNR support single-supply operation, and what is the minimum usable supply voltage?

Yes, the THS3001IDGNR supports true single-supply operation from 9V to 32V. The minimum usable supply is 9V (V_CC = 9V), corresponding to ±4.5V split-supply equivalence. Operation below 9V risks violating absolute maximum ratings and causes measurable degradation in slew rate and output swing - confirmed by THS3001IDGNR electrical characteristics tables across V_CC = 9V–32V.

How does the THS3001IDGNR's current-feedback architecture affect gain-setting resistor selection?

Unlike voltage-feedback op amps, the THS3001IDGNR's gain is set by the resistor from output to inverting input (R_F) and the resistor from inverting input to ground (R_G), where closed-loop gain ≈ R_F/R_G. Bandwidth depends almost exclusively on R_F, so R_G can be adjusted to scale gain without altering frequency response - a core advantage enabling THS3001IDGNR to maintain 420MHz BW even at G = 5 when R_F remains fixed at 560Ω.

What thermal considerations apply to the THS3001IDGNR in continuous 100mA output operation?

At 100mA continuous output into 20Ω at ±5V, the THS3001IDGNR dissipates ~1W. With R_θJA = 56.9°C/W (DGN package), junction temperature rise exceeds 57°C above ambient - requiring either forced airflow, PCB copper pour under the exposed pad, or derating. The THS3001IDGNR datasheet specifies R_θJB = 29.6°C/W, meaning proper board-level thermal design is mandatory to keep T_J < 125°C for reliability.

Can the THS3001IDGNR replace the THS3001CDGNR in existing designs without layout changes?

Yes - THS3001IDGNR and THS3001CDGNR share identical DGN-8 package dimensions, pinout, and electrical specifications across the full operating temperature range (–40°C to 85°C for 'I', 0°C to 70°C for 'C'). The 'I' grade offers extended temperature capability and tighter initial offset (3mV max vs 4mV max), but all AC/DC parameters, thermal metrics, and layout requirements are fully compatible, allowing drop-in replacement in industrial designs.