Diodes Incorporated TRAC020LHEURO

Overview

TRAC020LHEURO from Fast Analog Solutions is a 20-cell Field Programmable Analog Device (FPAD) in QSOP-36 package, operating from ±2V/3V dual supplies, delivering 12MHz small-signal bandwidth for NIP function, <1.2mV input offset, and 80dB dynamic range. It enables rapid analog computation, log/anti-log processing, and real-time signal conditioning in embedded instrumentation and control systems.

For engineers reviewing the TRAC020LHEURO datasheet, TRAC020LHEURO pinout, TRAC020LHEURO application, or TRAC020LHEURO equivalent, this page provides verified functional specifications, cell-level electrical behavior, power-down timing, temperature-stable gain/offset performance, and validated serial programming interface details - all critical for analog prototyping and low-volume custom silicon pathing.

Technical Context

The TRAC020LHEURO implements a reconfigurable analog fabric of 20 identical cells, each programmable via 3-bit serial instruction to perform NIP, NEGATE, ADD, LOG, ALOG, RECTIFY, AUX, or OFF functions. Each cell features rail-to-rail output swing (VSS+0.2V to VDD−1.7V), 60MΩ input resistance in NIP mode, and ≤0.08% THD at 1Vpp.

It uses a top-down computational design methodology: analog functions are defined mathematically (e.g., Eo = −(Ea + Eb) for ADD), then mapped directly to hardware without discrete component selection. Programming requires only 8 bytes total, clocked at up to 10MHz, with DOUT enabling daisy-chained validation across multiple devices.

Key Specifications

Pinout & Package

TRAC020LHEURO is housed in a 36-pin QSOP package (5.4mm × 13.6mm, 0.635mm pitch) with exposed thermal pad. Pin 1 is marked by a dot; pin numbering follows standard counter-clockwise orientation from top-left corner.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar field-programmable analog function applications.

Compared with TRAC020LHEURO, TRAC020LHQ36 offers identical functionality with no trade-offs, while TRAC010LHQ24 sacrifices 50% cell count, 2× bandwidth, and 40dB dynamic range - making it viable only for minimal analog pathing where cost per cell outweighs performance loss.

Availability

TRAC020LHEURO is available at Aetrix Electronics and suitable for analog transducer linearization, real-time ultrasonic beamforming, and embedded control system compensation requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for TRAC020LHEURO 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

Fast Analog Solutions Ltd., a Zetex Group company based in Oldham, UK, specializes in configurable analog ICs that bridge the gap between fixed-function components and full-custom ASICs.

The TRAC family was designed to enable top-down analog design - allowing engineers to specify mathematical signal processing behavior first, then synthesize working silicon in minutes rather than months.

FAQ

What is the maximum clock frequency for programming the TRAC020LHEURO?

The device supports a maximum programming clock frequency of 10 MHz, as confirmed by logic-level timing tests under VDD=3.0V±0.15V and VSS=−2.0V±0.10V conditions. This allows full 20-cell configuration in under 6 µs, enabling dynamic reconfiguration during system operation without interrupting analog signal paths.

Does TRAC020LHEURO require external passive components for basic function operation?

No external resistors or capacitors are required for NIP, NEGATE, ADD, LOG, or ALOG functions - all biasing and feedback networks are integrated on-die. The AUX function does require external RS/RF components (e.g., 20kΩ) to configure gain/attenuation, but this is optional and only used when extending beyond built-in functions.

How is analog signal routing handled between cells in the TRAC020LHEURO?

Signal routing is implemented via dedicated analog buses connecting IO pins: IO1–IO2 feed Cell 1–2 inputs; IO3–IO22 serve as bidirectional ports between adjacent cells. No external wiring is needed - inter-cell connections are established solely by programming each cell's function code and enabling its input/output path through the internal switch matrix.

What is the guaranteed minimum open-loop gain of the TRAC020LHEURO cells?

The minimum open-loop gain is 300 V/V (49.5 dB), measured at 25°C with VDD=3.0V and VSS=−2.0V. This value is maintained across the full industrial temperature range (−40°C to +85°C), ensuring stable closed-loop performance for precision applications like transducer correction where loop gain directly impacts linearity error.