STMicroelectronics STHV1600L

Overview

STHV1600L from STMicroelectronics is a 16-channel, high-speed ultrasound pulser IC with integrated digital transmit beamformer, ±100 V peak output, ±2 A/±4 A source/sink current per channel, and 5-level/3-level programmable pulse output for medical ultrasound transducer excitation. It operates up to 30 MHz and supports pulsed wave (PW), continuous wave (CW), and elastography modes.

For engineers reviewing the STHV1600L datasheet, STHV1600L pinout, STHV1600L application, or STHV1600L equivalent, key selection criteria include its integrated RTZ clamping (11 Ω), T/R switch (9 Ω R_ON, 28 pF), 5 ns delay resolution at 200 MHz clock, 64 kbit embedded volatile memory, and HV SOI process enabling latch-up immunity and low thermal resistance.

Technical Context

The STHV1600L implements a monolithic 16-channel architecture where each channel integrates two independent half-bridges (TX0/TX1) configurable in parallel for ±4 A drive or independently for 5-level output. Its digital beamforming engine supports programmable per-channel delays from 0 to 327 µs with 5 ns resolution at 200 MHz clock input.

It embeds fully integrated analog functions: active clamp-to-ground (11 Ω, ±2 A), T/R switch (9 Ω R_ON, 28 pF), noise-blocking diodes, recirculation current protection, anti-memory circuitry, thermal/undervoltage protection, and 12 embedded low-voltage decoupling capacitors - reducing external BOM count significantly.

Key Specifications

Pinout & Package

LFBGA-144 (10 mm × 10 mm × 1.4 mm, 0.8 mm pitch) package with exposed thermal pad; optimized for high-power density and thermal dissipation in ultrasound probe assemblies.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage ultrasound pulser applications.

Compared with TX7332 and AD9410, the STHV1600L uniquely integrates digital beamforming, active RTZ clamping, and T/R switching in a single LFBGA package - reducing component count by ≥35%, eliminating analog timing drift, and enabling true plug-and-play probe integration.

Availability

STHV1600L is available at Aetrix Electronics and suitable for medical ultrasound imaging systems, NDT inspection equipment, and piezoelectric transducer driver modules requiring stable component supply, full production traceability, and long-lifecycle support.

Supply support for STHV1600L 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power management ICs, sensors, and analog/mixed-signal products for industrial, automotive, and medical markets.

The STHV1600L belongs to ST's high-voltage ultrasound transmitter product line, engineered specifically for miniaturized, high-channel-count medical probes requiring integrated beamforming, low jitter, and robust HV SOI reliability.

FAQ

What is the maximum safe operating temperature for STHV1600L?

The STHV1600L is specified for operation from 0°C to +80°C ambient temperature. Its HV SOI process and low thermal resistance package allow sustained 16-channel operation at full ±4 A output within this range, provided the PCB thermal pad is properly soldered and heatsinked per ST's AN5079 layout guidelines.

Does STHV1600L require external filtering capacitors for gate driver bias?

No. The STHV1600L uses a self-biased gate driver architecture that eliminates the need for external filtering capacitors on the high-voltage supply rails. This reduces bill-of-materials count and improves layout simplicity, especially in space-constrained ultrasound probe assemblies.

Can STHV1600L operate in both pulsed wave (PW) and continuous wave (CW) modes simultaneously?

No. PW and CW modes are mutually exclusive configurations selected at initialization via register settings. PW mode enables high-current pulsing with RTZ clamping; CW mode configures low-power, low-jitter operation for Doppler applications - both cannot be active on the same channel concurrently.

How many STHV1600L devices can be daisy-chained using the serial interface?

Up to 8 STHV1600L devices can be daisy-chained using the SDI/SDO/SCK interface with proper termination and trace length matching. Each device consumes one 256-bit frame in the chain; total configuration time scales linearly, with minimum 425 ns delay per device for table writing as specified in DB3667 Rev 2.