Texas Instruments THS14F01IPFB

Overview

THS14F01IPFB from Texas Instruments is a 14-bit, 1 MSPS analog-to-digital converter with integrated FIFO buffer, internal 2-V differential reference (REF+ = 2.5 V, REF– = 0.5 V), programmable gain amplifier (0–7 dB), and µP-compatible parallel interface. It operates on a single 3.3-V supply, features differential inputs, and targets high-speed data acquisition in TI C6000 DSP-based communication front ends.

For engineers reviewing the THS14F01IPFB datasheet, THS14F01IPFB pinout, THS14F01IPFB application, or THS14F01IPFB equivalent, this device delivers verified 11.5-bit ENOB at 100 kHz input, ±1.5 LSB typical INL, 9.5-cycle pipeline latency, and FIFO-triggered interrupt support for efficient DSP interfacing in xDSL and industrial control systems.

Technical Context

The THS14F01IPFB implements a pipelined ADC architecture with 9.5-cycle latency and a 32-word deep FIFO optimized for burst-mode transfers to TI TMS320C6000-series DSPs. Its on-chip PGA supports eight discrete gain settings (0–7 dB in 1-dB steps), and the internal bandgap reference provides 1.5 V (VBG) with 40 ppm/°C tempco and 5% accuracy.

Differential nonlinearity is ±0.6 LSB typ, integral nonlinearity ±1.5 LSB typ, and AC performance includes 72 dB SNR and –81 dB THD at 100 kHz. The device uses separate analog (AVDD/AGND) and digital (DVDD/DGND) supplies and supports straight binary or two's complement output formats via control register configuration.

Key Specifications

Pinout & Package

TQFP-48 package (PFB), 7 mm × 7 mm body, 0.5-mm pitch, industrial temperature range (–40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed ADC applications.

Compared with THS14F01IPFB, ADS8364IPAG trades speed and integration for higher resolution and serial simplicity, while THS12082IPFB sacrifices resolution and on-chip features for raw throughput-making THS14F01IPFB optimal for balanced 1-MSPS, DSP-coupled, self-contained acquisition.

Availability

THS14F01IPFB is available at Aetrix Electronics and suitable for xDSL front ends, industrial motor control systems, and portable instrumentation requiring stable component supply across extended temperature ranges.

Supply support for THS14F01IPFB 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 connectivity technologies with decades of ADC innovation.

The THS14F01IPFB belongs to TI's high-speed precision ADC family designed specifically for DSP-centric communications and industrial data acquisition, emphasizing FIFO efficiency, integrated signal conditioning, and 3.3-V compatibility.

FAQ

What is the maximum clock frequency supported by THS14F01IPFB?

The THS14F01IPFB supports a maximum clock frequency of 1 MHz, as specified in its recommended operating conditions. This defines its 1 MSPS sampling rate capability. Exceeding 1 MHz violates the device's timing specifications and may cause conversion errors or FIFO misalignment. The THS14F03IPFB variant supports 3 MHz, but THS14F01IPFB is strictly rated for 1 MHz operation per the SLAS285 datasheet.

Does THS14F01IPFB include an internal voltage reference?

Yes, THS14F01IPFB integrates an internal bandgap reference generating VBG = 1.5 V (typ), which is used to derive REF+ = 2.5 V and REF– = 0.5 V - yielding a 2-V differential reference. This eliminates the need for external reference components in most applications. The internal reference can be disabled via the control register (bit D12 = 1) to allow use of an external reference for higher DC accuracy.

How does the FIFO function in THS14F01IPFB?

The THS14F01IPFB contains a 32-word circular FIFO buffer that stores conversion results before host readout. When the number of stored samples reaches a user-programmable threshold (0–30 in steps of 2), the INT pin asserts to signal the host processor. Reading data from the FIFO decrements the count, and overflow (FOVL) occurs only if new conversions arrive while the FIFO is full - ensuring deterministic data flow in DSP-based systems.

What are the supported output data formats for THS14F01IPFB?

THS14F01IPFB supports two output formats selectable via bit D11 in the control register: straight binary (default) and two's complement. In straight binary mode, 0x0000 represents –FS, 0x2000 represents midscale (0 V differential), and 0x3FFF represents +FS. In two's complement mode, 0x0000 is midscale, 0x2000 is –FS, and 0x1FFF is +FS - simplifying signed arithmetic in DSP firmware.

Can THS14F01IPFB operate with a single 3.3-V supply?

Yes, THS14F01IPFB is designed for single 3.3-V operation: both AVDD and DVDD accept 3.0–3.6 V per the recommended operating conditions. It requires separate analog (AGND) and digital (DGND) ground connections, and proper decoupling (e.g., 0.1-µF ceramic caps per AVDD/DVDD pin) is mandatory to maintain 72 dB SNR and ±1.5 LSB INL performance across the industrial temperature range.