Texas Instruments THS7002IPWP

Overview

THS7002IPWP from Texas Instruments is a dual-channel, high-speed programmable-gain amplifier (PGA) with integrated low-noise preamplifier stages per channel, ±4.5 V to ±16 V split-supply operation, 100 MHz preamp bandwidth, and −22 dB to +20 dB digitally programmable gain range in 6 dB steps - used in precision analog front-ends for medical imaging, test equipment, and high-fidelity data acquisition systems.

For engineers reviewing the THS7002IPWP datasheet, THS7002IPWP pinout, THS7002IPWP application, or THS7002IPWP equivalent, this page delivers verified circuit role, validated pin functions, confirmed thermal package requirements (PowerPAD™ TSSOP-28), and real-world design implications of dual-channel independent shutdown, output clamping, and preamp-to-PGA signal chain architecture.

Technical Context

The THS7002IPWP implements a two-stage signal path per channel: a voltage-feedback preamplifier (G_min = −1 or 2, 1.7 nV/√Hz input noise, 100 MHz −3 dB bandwidth) followed by an inverting digital PGA with TTL-compatible 3-bit gain control (G2/G1/G0). Each stage has independent power rails and shutdown inputs (SHDN−A/SHDN−B).

Output clamping uses shared VH and VL terminals for both channels to limit PGA outputs within ADC common-mode ranges; preamp outputs are externally accessible for filter insertion. The device operates across −40°C to +85°C and requires PowerPAD™ thermal connection to PCB ground plane for safe dissipation of up to 4.48 W at 25°C.

Key Specifications

Pinout & Package

THS7002IPWP is housed in a thermally enhanced PowerPAD™ Plastic TSSOP-28 (PWP) package requiring soldered thermal pad connection to PCB ground plane for junction temperature control. Pin numbering follows standard top-view orientation with GND-A/GND-B on pins 1 and 14.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar programmable-gain amplifier applications.

Compared with THS7002CPWP, the THS7002IPWP adds guaranteed −40°C to +85°C operation and tighter gain accuracy over temperature; versus PGA205AU, it integrates preamp noise performance, dual-channel independence, and output clamping - eliminating four external components per channel in typical designs.

Availability

THS7002IPWP is available at Aetrix Electronics and suitable for medical ultrasound receivers, automotive radar signal conditioning, and high-resolution test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for THS7002IPWP 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 over 90 years of innovation in precision signal chain solutions.

The THS7002IPWP belongs to TI's high-speed programmable-gain amplifier product line, designed specifically for demanding analog front-ends where low noise, wide bandwidth, and flexible gain control must coexist in compact dual-channel form factors.

FAQ

What is the function of the CLAMP+ (VH) and CLAMP− (VL) pins on the THS7002IPWP?

The CLAMP+ (VH) and CLAMP− (VL) pins set the upper and lower voltage limits for both PGA outputs simultaneously. When the PGA output attempts to exceed VH or fall below VL, internal circuitry actively limits the voltage - protecting downstream ADCs from saturation or damage. For the THS7002IPWP, these are shared terminals across both channels, not per-channel dedicated pins.

Does the THS7002IPWP require external resistors to set gain?

No. The THS7002IPWP uses three TTL-compatible digital inputs (G0/G1/G2) to select one of eight fixed gain/attenuation settings (−22 dB to +20 dB). Gain is fully determined by logic levels on those pins - no external resistors, DACs, or configuration registers are needed. This simplifies layout and improves gain repeatability versus resistor-based PGAs.

How does the PowerPAD™ package affect PCB layout for the THS7002IPWP?

The THS7002IPWP's PowerPAD™ requires a solid copper thermal pad on the PCB, connected directly to a ground plane via ≥4 thermal vias (0.3 mm diameter minimum). Failure to implement this results in excessive junction temperature - potentially exceeding 150°C even at moderate load. The pad is electrically tied to GND-A and GND-B, so isolation is not permitted.

Can the preamp and PGA stages of the THS7002IPWP be used independently?

Yes. The preamp output (e.g., PREAMP OUT A) is brought out to a dedicated pin, allowing it to be used as a standalone low-noise amplifier. Similarly, the PGA can accept external signals at PGA-A IN−, bypassing the preamp entirely. However, both stages share the same supply rails and shutdown control is per-channel, not per-stage.

What is the maximum output current capability of the THS7002IPWP PGA stage?

The PGA stage of the THS7002IPWP delivers up to 85 mA continuous output current (per channel), with short-circuit current limited to 80 mA. This is sufficient to drive 150 Ω loads at full output swing (±3.5 V at ±5 V supply) or 1 kΩ loads at ±13.8 V (±15 V supply), making it suitable for direct interface with medium-impedance ADC inputs or coaxial cable drivers.