Texas Instruments THS1206CDA

Overview

THS1206CDA from Texas Instruments is a 12-bit, 6 MSPS simultaneous-sampling analog-to-digital converter with four analog inputs, internal 1.5 V/3.5 V references (±5% accuracy, 50 ppm/°C), and integrated 16-word FIFO. It operates on a single 5-V analog supply and supports 3-V or 5-V digital interfaces. Used in radar front-ends requiring synchronized multi-channel acquisition at >2 MHz input frequency.

For engineers reviewing the THS1206CDA datasheet, THS1206CDA pinout, THS1206CDA application, or THS1206CDA equivalent, key selection criteria include simultaneous 4-channel sampling capability, differential/nonlinear error (±1 LSB DNL), SNR of 68 dB at 2 MHz, auto-scan mode support, and TSSOP-32 package compatibility with THS10064.

Technical Context

The THS1206CDA employs a multistage pipelined ADC architecture with output error correction logic to guarantee no missing codes across 0°C to 70°C. Its four analog inputs are sampled simultaneously and configurable as single-ended or differential pairs - supporting mixed configurations (e.g., two differential + one single-ended).

It offers two conversion modes: single-conversion (internally clocked, up to 3 MSPS per channel) and continuous-conversion (externally clocked, up to 6 MSPS total throughput). Internal reference voltages (VREFP = 3.5 V, VREFM = 1.5 V) are provided, with optional external reference via REFP/REFM pins and programmable selection via control register 0.

Key Specifications

Pinout & Package

TSSOP-32 package (DA suffix), 7.0 mm × 4.4 mm body, 0.65 mm pitch, exposed thermal pad (not electrically connected). RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar simultaneous-sampling ADC applications.

Compared with THS1206CDA, ADS8556IPM trades speed for resolution and adds system-level complexity, while THS1206IDA maintains identical electrical behavior with enhanced thermal robustness - making it a drop-in upgrade for harsher environments.

Availability

THS1206CDA is available at Aetrix Electronics and suitable for radar signal acquisition, industrial motor control, and high-speed data acquisition systems requiring stable component supply, long-term obsolescence management, and traceable sourcing.

Supply support for THS1206CDA 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 digital signal processing technologies - with over 50 years of innovation in precision data converters and industrial-grade ICs.

The THS1206CDA belongs to TI's high-speed simultaneous-sampling ADC product line, engineered for radar, communications, and real-time control applications demanding synchronized multi-channel acquisition with low latency and deterministic timing.

FAQ

What is the maximum sampling rate per channel for THS1206CDA in continuous conversion mode?

The THS1206CDA achieves up to 6 MSPS aggregate throughput. When configured for one analog input (single-ended or differential), the full 6 MSPS is available per channel. With two inputs, the rate drops to 3 MSPS per channel; with three, to 2 MSPS; and with four, to 1.5 MSPS - governed by the pipeline latency and FIFO depth. This scaling is explicitly defined in Table 1 of the THS1206CDA datasheet.

Does THS1206CDA support differential input configurations?

Yes, THS1206CDA supports true differential operation on two independent channels (AINP/AINM and BINP/BINM), with guaranteed common-mode rejection and matched gain/phase response. It also allows mixed configurations - e.g., one differential pair plus two single-ended inputs - all sampled simultaneously. The THS1206CDA datasheet confirms differential mode SNR of 69 dB and THD of –70 dB at 2 MHz.

Can THS1206CDA operate with an external reference voltage?

Yes, THS1206CDA accepts external references via REFP and REFM pins. The internal reference can be disabled via control register 0, allowing user-defined reference voltages (e.g., precision 2.5 V or 4.096 V sources) to set full-scale range. External reference mode improves dc accuracy and temperature drift beyond the internal ±5% / 50 ppm/°C spec - confirmed in Section 16 of the THS1206CDA datasheet.

Is THS1206CDA pin-compatible with any other Texas Instruments ADCs?

Yes, THS1206CDA is pin-compatible with THS10064 - a 10-bit, 6 MSPS predecessor - enabling straightforward resolution upgrades without PCB redesign. Both share identical TSSOP-32 pinout, control interface, and timing behavior. This backward compatibility is explicitly stated in the THS1206CDA datasheet Feature section and Ordering Information table.

What is the function of the DATA_AV signal on THS1206CDA?

DATA_AV is an asynchronous output indicating valid data in the internal 16-word FIFO. It can be configured as an active-low/high pulse or static level via control registers, and its trigger level (1–12 words) is programmable. In continuous mode, it asserts after pipeline latency (5 CONV_CLK cycles); in single mode, timing depends on channel count and trigger setting - all detailed in THS1206CDA timing specifications (pages 6–7).