Texas Instruments TLV5580CDW

Overview

TLV5580CDW from Texas Instruments is an 8-bit, 80 MSPS analog-to-digital converter (ADC) designed for high-speed digitization in signal acquisition front-ends. It operates on a single 3.3 V supply, delivers 700 MHz analog input bandwidth, consumes 165 mW typical power in active mode, and features 3.3 V TTL/CMOS-compatible digital I/O. It is used in IF-sampling communication receivers and LCD/DMD projection module interfaces.

For engineers reviewing the TLV5580CDW datasheet, TLV5580CDW pinout, TLV5580CDW application, or TLV5580CDW equivalent, this page provides verified technical context, real-world timing behavior, reference configuration options, package-specific layout guidance, and validated alternative parts for high-speed ADC selection in graphics, medical imaging, and DVD read-channel systems.

Technical Context

The TLV5580CDW implements a single-pipeline CMOS architecture with six 2-bit ADC/DAC stages plus one final flash stage, achieving 8-bit resolution at 80 MSPS with no missing codes over temperature. Its correction logic combines outputs from all stages to generate the final binary word, ensuring monotonicity and ±1 LSB INL.

It supports both internal and external voltage references: internal references provide self-contained operation with 1–1.6 Vpp full-scale range (dependent on AVDD), while external reference inputs (REFBI/REFTI) allow adjustable input range and dc offset. The device includes independent power-down control for references (PWDN_REF) and full standby mode (STBY), enabling dynamic power management in burst-mode systems.

Key Specifications

Pinout & Package

TLV5580CDW is housed in a 28-pin SOIC (DW) package with gull-wing leads, 300 mil body width, and 1.27 mm pitch. Pin assignment follows TI's standard DW top-view layout with analog and digital supplies segregated across opposite sides to simplify PCB grounding.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV5580CDW, ADS830U trades 20 MSPS and internal references for lower power and simpler layout, while MAX1185EUB+ delivers higher speed and bandwidth at the cost of reference inflexibility and increased supply sensitivity - making TLV5580CDW optimal for balanced performance, configurability, and power in mid-speed video and comms applications.

Availability

TLV5580CDW is available at Aetrix Electronics and suitable for digital communications infrastructure, flat-panel display controllers, and medical imaging equipment requiring stable component supply across extended production lifecycles.

Supply support for TLV5580CDW 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 high-performance data converters for industrial, automotive, and communications markets.

The TLV5580CDW belongs to TI's high-speed precision ADC product line, engineered for cost-effective, low-power digitization in graphics, medical, and consumer electronics where 8-bit resolution and 80 MSPS throughput meet system-level SNR and timing requirements.

FAQ

What is the maximum analog input frequency supported by TLV5580CDW without significant amplitude loss?

The TLV5580CDW has a typical analog input bandwidth of 700 MHz, defined as the frequency at which a −1 dBFS sine input exhibits 3 dB attenuation in the output spectrum. This allows faithful digitization of signals up to ~76 MHz at full scale (per SFDR plots), and supports undersampling of IF bands well into the UHF range when used with appropriate anti-alias filtering and clock jitter control. The TLV5580CDW maintains usable ENOB down to 6.5 bits even at 76 MHz input.

Can TLV5580CDW operate with only internal references, and what is the resulting full-scale range?

Yes, TLV5580CDW can operate using only its internal reference generator, with REFBI tied to REFBO and REFTI tied to REFTO. At AVDD = 3.3 V, this yields a nominal full-scale range of 1.3 Vpp (VREFTO − VREFBO ≈ 1.3 V), adjustable between 1.0 Vpp and 1.6 Vpp depending on AVDD. Internal references are factory-trimmed and stable over temperature, making TLV5580CDW a self-contained solution for applications where external reference ICs add cost or board space.

How does the pipeline latency of TLV5580CDW affect data capture timing in an FPGA-based system?

The TLV5580CDW has a fixed pipeline latency of 4.5 clock cycles from sample initiation to valid D0–D7 output. Combined with up to 9 ns output delay (td(o)), this means data becomes stable on the falling edge of CLK at 80 MSPS - requiring FPGA input registers to be clocked on CLK falling edge for reliable capture. The TLV5580CDW timing diagram (Figure 1) explicitly specifies this constraint, and violating it causes metastability or bit errors. TLV5580CDW's deterministic latency simplifies FIFO depth calculation and frame alignment in streaming architectures.

What is the purpose of the separate DRVDD supply pin, and what voltage should be applied?

The DRVDD pin powers only the digital output drivers (D0–D7), isolating their switching noise from the analog and core digital supplies. TI specifies DRVDD = 3.0 V (not 3.3 V) for optimal performance: lowering DRVDD reduces output buffer slew rate and dynamic current spikes, improving SFDR by ≥2 dB and minimizing noise coupling into AVDD/AVSS. Applying 3.3 V to DRVDD increases power and degrades dynamic specs - TLV5580CDW's recommended operating conditions explicitly define DRVDD = 3.0 V.

Does TLV5580CDW support ac-coupled analog inputs, and what design considerations apply?

Yes, TLV5580CDW supports ac-coupled inputs via series capacitor and bias network (e.g., Figure 14). Critical considerations include: (1) placing the high-pass corner f_−3dB well below minimum signal frequency (e.g., <20 Hz for audio, <100 kHz for video); (2) using C2 ≈ 0.01 µF ceramic in parallel with bulk C1 to maintain low impedance at high frequencies; (3) limiting total source impedance to ≤80 Ω to ensure full settling within 6.25 ns (half-clock at 80 MSPS). Failure to meet these causes gain error and distortion in TLV5580CDW output.