Texas Instruments THS1207CDA

Overview

THS1207CDA from Texas Instruments is a 12-bit, 6 MSPS pipelined analog-to-digital converter (ADC) with simultaneous sampling across four analog inputs. It supports single-ended (4-channel), differential (2-channel), or mixed-mode configurations, 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 is used in radar front-ends requiring synchronized multi-channel acquisition.

For engineers reviewing the THS1207CDA datasheet, THS1207CDA pinout, THS1207CDA application, or THS1207CDA equivalent, this page provides verified specifications, validated pin functions, confirmed timing behavior under multichannel auto-scan mode, and real-world interface compatibility with 3-V/5-V µC/DSP buses - all directly extracted from TI's SLAS284A datasheet.

Technical Context

The THS1207CDA implements a multistage pipelined ADC architecture with output error correction logic to guarantee no missing codes over 0°C to 70°C. Its conversion latency is fixed at 5 CONV_CLK cycles, and SYNC output synchronizes channel data delivery in multichannel modes.

It features programmable control registers (CR0/CR1) for configuration of input mode (single-ended/differential), channel selection (CHSEL0/CHSEL1), autoscan enable (SCAN), power-down (PD), and reference source (VREF). Digital interface supports parallel µC/DSP bus with glueless connectivity via CS0/CS1/WR/RD and 12-bit bidirectional data bus (D0–D11).

Key Specifications

Pinout & Package

THS1207CDA is housed in a 32-pin TSSOP (DA package), 7.0 mm × 12.0 mm body, 0.65 mm pitch, with exposed thermal pad (not electrically connected). Pin numbering follows standard top-view orientation as defined in TI SLAS284A.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADS8325IPFB and THS1206CDA, THS1207CDA uniquely supports true 4-channel simultaneous sampling with programmable input configuration - making it the only option among the three for time-aligned multi-sensor or multi-antenna systems requiring sub-ns inter-channel coherence.

Availability

THS1207CDA is available at Aetrix Electronics and suitable for radar signal acquisition, communications baseband processing, and industrial motor control applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for THS1207CDA 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 expertise in high-performance data converters and signal chain solutions.

The THS1207CDA belongs to TI's high-speed pipeline ADC product line, designed specifically for demanding real-time acquisition in radar, imaging, and communications infrastructure where simultaneous multi-channel sampling and low-latency digital interfacing are mandatory.

FAQ

What is the maximum sampling rate per channel for THS1207CDA in 4-channel single-ended mode?

The THS1207CDA achieves a maximum throughput rate of 1.5 MSPS per channel when configured for continuous sampling across all four single-ended inputs. This is derived from the device's fixed 6 MSPS aggregate sampling capacity divided equally across the four active channels, as specified in Table 1 of the SLAS284A datasheet. THS1207CDA maintains full 12-bit resolution and guaranteed no-missing-codes performance at this rate.

Does THS1207CDA support both binary and two's complement output formats?

Yes, THS1207CDA supports both binary and two's complement output formats, selectable via bit 8 (BIN/2's) in Control Register 1. In single-ended mode, binary format maps VREFM to 000h and VREFP to FFFh, while two's complement maps VREFM to 800h and VREFP to 7FFh. THS1207CDA applies the same mapping logic for differential inputs using the REFP–REFM reference span.

How does the SYNC signal behave in THS1207CDA multichannel operation?

In multichannel mode, THS1207CDA asserts SYNC low precisely when Channel A data is valid on the D-bus. For example, in 2-channel operation, SYNC pulses low every other conversion cycle - aligning with the availability of Channel A samples interleaved with Channel B. The first SYNC after reset is delayed by [7 + (# channels)] CONV_CLK cycles due to pipeline latency, as documented in the SLAS284A datasheet.

Can THS1207CDA operate with an external reference voltage?

Yes, THS1207CDA supports external reference operation via REFP and REFM pins. Setting bit 0 (VREF) = 1 in Control Register 0 disables the internal 3.5 V / 1.5 V reference and enables external reference sourcing. The external reference must meet specified voltage ranges: REFP between 3.5 V and AVDD–1.2 V, REFM between 1.4 V and 1.6 V, with REFP–REFM ≥ 2 V, as defined in the RECOMMENDED OPERATING CONDITIONS table of SLAS284A.

What is the power consumption of THS1207CDA in power-down mode?

THS1207CDA consumes ≤1 mW in power-down mode, as measured at AVDD = DVDD = 5 V and BVDD = 3.3 V with the conversion clock inactive. This state retains register contents and allows immediate resumption of conversion upon exit - verified in the ELECTRICAL CHARACTERISTICS section of SLAS284A. THS1207CDA remains accessible via the digital bus during power-down for configuration reads/writes.