Texas Instruments THS1207IDA

Overview

THS1207IDA from Texas Instruments is a 12-bit, 6 MSPS simultaneous-sampling analog-to-digital converter (ADC) with four analog inputs configurable as single-ended or differential pairs. It delivers 68 dB SNR + distortion at 2 MHz input, ±1 LSB DNL, and operates from a single 5-V analog supply with internal 50 ppm/°C voltage references. It serves radar front-ends requiring synchronized multi-channel acquisition and high dynamic range.

For engineers reviewing the THS1207IDA datasheet, THS1207IDA pinout, THS1207IDA application, or THS1207IDA equivalent, this page provides verified technical context, real-world timing behavior, confirmed interface compatibility (3-V/5-V digital), validated power-down performance (1 mW), and precise multichannel sampling rate trade-offs per configuration.

Technical Context

The THS1207IDA uses a multistage pipelined ADC architecture with output error correction logic to guarantee no missing codes across –40°C to +85°C. Its simultaneous sampling supports up to four channels with programmable auto-scan for 2–4 inputs, and internal control registers configure input mode (single-ended/differential), reference source (internal/external), and power state.

Conversion is clocked by an external CONV_CLK signal, with data latency fixed at 5 clock cycles and SYNC output indicating channel-A data availability in multichannel operation. Digital interface supports parallel µC/DSP connection via 12-bit bidirectional data bus (D0–D11), dual chip select (CS0/CS1), and configurable R/W or WR+RD control.

Key Specifications

Pinout & Package

TSSOP-32 (DA package), 7.0 mm × 9.0 mm body, 0.65 mm pitch, exposed thermal pad (not electrically connected).

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADS8325IPFB and THS1206IDW, the THS1207IDA uniquely delivers 4-channel simultaneous sampling at 6 MSPS with programmable input topology-making it irreplaceable in radar and multiaxis motor control where inter-channel coherence is non-negotiable.

Availability

THS1207IDA is available at Aetrix Electronics and suitable for radar signal acquisition, communications baseband processing, and industrial motor control requiring stable component supply across extended temperature ranges.

Supply support for THS1207IDA 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 THS1207IDA belongs to TI's high-speed data acquisition product line, engineered for demanding real-time systems including radar, test equipment, and industrial automation where simultaneous multi-channel fidelity is essential.

FAQ

What is the maximum sampling rate per channel for THS1207IDA in 4-channel simultaneous mode?

The THS1207IDA achieves 1.5 MSPS per channel when all four analog inputs are active in continuous conversion mode. This is derived from its fixed 6 MSPS aggregate throughput divided equally across channels. The device maintains full 12-bit resolution and specified AC performance (e.g., 62 dB SINAD) at this rate, as confirmed in the datasheet's Table 1 and timing diagrams (Figures 26–29). THS1207IDA's pipeline latency remains constant at 5 clock cycles regardless of channel count.

Does THS1207IDA support both single-ended and differential input configurations on the same device?

Yes, THS1207IDA supports mixed configurations: any combination of single-ended and differential inputs across its four channels (e.g., two differential + one single-ended). Configuration is controlled via bits DIFF0/DIFF1 and CHSEL0/CHSEL1 in Control Register 0. The functional block diagram and Table 9 in the datasheet confirm independent per-channel mode selection, and electrical specs (SNR, THD) are separately characterized for both topologies.

How does the SYNC output function in THS1207IDA multichannel operation?

In multichannel mode, THS1207IDA's SYNC pin asserts low precisely when Channel A data is valid on the D0–D11 bus. Its timing is deterministic: first SYNC occurs [7 + (# channels)] CONV_CLK cycles after reset, then repeats at the channel rate (e.g., every 2 clocks for 2-channel mode). This allows external logic or DSPs to latch Channel A data synchronously while interleaving other channels-critical for time-coherent radar beamforming or motor phase analysis.

Can THS1207IDA operate with an external reference voltage, and how is it selected?

Yes, THS1207IDA accepts external references on REFP and REFM pins, with voltage ranges of 1.4–1.6 V (REFM) and 3.5–(AVDD–1.2) V (REFP). Selection is made by setting bit VREF = 1 in Control Register 0. Internal reference (1.5 V / 3.5 V) remains available when VREF = 0. The REFOUT pin provides a buffered 2.5 V output usable as a system reference, and all reference configurations maintain the specified ±1.5 LSB INL and 63 dB SINAD performance.

What digital interface voltage levels does THS1207IDA support, and how is compatibility achieved?

THS1207IDA supports 3-V and 5-V digital interfaces via separate DVDD (digital core) and BVDD (buffer) supplies. DVDD accepts 4.75–5.25 V for 5-V logic or can be tied to 3.3 V for 3-V operation; BVDD similarly supports 3–5.25 V. Input thresholds (VIH/VIL) and output drive (VOH/VOL) meet both LVTTL and TTL specifications across this range, enabling direct connection to FPGAs, microcontrollers, and DSPs without level shifters-verified in the Recommended Operating Conditions table.