Texas Instruments ADS6144IRHBT

Overview

ADS6144IRHBT from Texas Instruments is a 14-bit, 105 MSPS analog-to-digital converter with dual-output interface support (DDR LVDS or parallel CMOS), internal reference, and programmable coarse/fine gain. It delivers 74.1 dBFS SINAD at 10 MHz input and 70.5 dBFS at 170 MHz (3.5 dB gain), operating from 3.3-V analog and 1.8–3.3-V digital supplies in radar and SDR signal acquisition chains.

For engineers reviewing the ADS6144IRHBT datasheet, ADS6144IRHBT pinout, ADS6144IRHBT application, or ADS6144IRHBT equivalent, this page provides verified technical context, real-world timing behavior, interface configuration trade-offs, and validated alternatives for high-speed data acquisition systems requiring stable SNR/SFDR performance across –40°C to 85°C.

Technical Context

The ADS6144IRHBT implements a pipelined ADC architecture with integrated sample-and-hold and low-jitter clock buffer, enabling 74.1 dBFS SINAD and 82 dBc SFDR at 170 MHz input under 3.5 dB coarse gain. Its dual-mode output supports DDR LVDS (3.3 V DRVDD, 100 Ω termination) or parallel CMOS (1.8–3.3 V DRVDD), each with programmable drive strength and output clock positioning.

Configuration occurs via 3-wire serial interface (SEN/SCLK/SDATA) or dedicated parallel pins (SCLK/SEN/PDN), allowing power-up state definition without firmware. Internal reference eliminates external decoupling; external reference mode supports 1.45–1.55 V common-mode voltage with ±5 mV error.

Key Specifications

Pinout & Package

ADS6144IRHBT uses a 32-pin QFN package (5 mm × 5 mm, RHB designation) with exposed thermal pad. Pin functions are validated per TI SLWS198B datasheet Figures 1–3 and Table 1–3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADS6144IRHBT, ADS6145IRHBT extends sampling headroom for future-proofing, while ADS6143IRHBT reduces power and cost for fixed 80 MSPS designs-both retain identical QFN-32 packaging, register map, and interface logic.

Availability

ADS6144IRHBT is available at Aetrix Electronics and suitable for radar systems, software-defined radio infrastructure, and power amplifier linearization requiring stable component supply across industrial temperature ranges (–40°C to 85°C).

Supply support for ADS6144IRHBT 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 decades of high-speed data converter innovation.

The ADS614X family was designed for demanding communications and instrumentation applications requiring high dynamic range, low power, and flexible digital interfacing in compact QFN packages.

FAQ

What is the maximum input frequency supported by the ADS6144IRHBT?

The ADS6144IRHBT features a 450 MHz analog input bandwidth, enabling direct sampling of RF signals up to L-band frequencies. Performance metrics such as 70.5 dBFS SINAD and 82 dBc SFDR are specified at 170 MHz input with 3.5 dB coarse gain, confirming usability well beyond baseband. The device maintains usable SNR up to 230 MHz per datasheet AC characteristics.

Does the ADS6144IRHBT require external reference components?

No, the ADS6144IRHBT integrates a precision internal reference (V_REFT = 2 V, V_REFB = 1 V) with ±5 mV error and eliminates external decoupling capacitors. External reference mode is supported via the VCM pin (1.45–1.55 V), but no external reference IC or bypass caps are needed for standard operation - reducing BOM count and PCB area.

How does the ADS6144IRHBT handle clock jitter sensitivity?

The ADS6144IRHBT incorporates an on-chip low-jitter clock buffer and achieves 150 fs rms aperture jitter, directly translating to >74 dBFS theoretical SNR at 100 MHz input. This enables robust performance with low-cost clock sources; the datasheet confirms stable 74.1 dBFS SINAD at 10 MHz and 70.5 dBFS at 170 MHz under typical conditions.

Can the ADS6144IRHBT interface directly with Xilinx or Intel FPGAs?

Yes - the ADS6144IRHBT supports both DDR LVDS and parallel CMOS outputs. Its DDR LVDS interface (3.3 V, 100 Ω termination) aligns with FPGA transceiver standards, while parallel CMOS mode (1.8–3.3 V DRVDD) allows direct connection to bank-specific I/O voltages. Programmable CLKOUT position and drive strength further simplify timing closure.

What power supply configurations does the ADS6144IRHBT support?

The ADS6144IRHBT requires AVDD = 3.0–3.6 V (analog) and DRVDD = 1.8–3.3 V (digital). For CMOS output, DRVDD may be set to 1.8 V to reduce power; for LVDS, 3.3 V is required. Total power is 374 mW (CMOS, 3.3 V) or 374 mW (LVDS, 3.3 V), with global power-down reducing consumption to 30 mW.