Texas Instruments TLC5510IPWG4

Overview

TLC5510IPWG4 from Texas Instruments is a CMOS 8-bit, 20 MSPS analog-to-digital converter (ADC) using a semiflash architecture for high-speed video and communication signal digitization. It features 2-V full-scale input range, ±0.75 LSB integral nonlinearity at 25°C, 5-V single-supply operation, and parallel high-impedance digital outputs - deployed in digital TV front-ends and QAM demodulator signal chains.

For engineers reviewing the TLC5510IPWG4 datasheet, TLC5510IPWG4 pinout, TLC5510IPWG4 application, or TLC5510IPWG4 equivalent, this page delivers verified electrical specs, terminal-level design meaning, real-world use context in video/data conversion systems, and validated alternative options for layout-constrained or supply-chain-sensitive designs.

Technical Context

The TLC5510IPWG4 implements a 2-step semiflash conversion architecture with upper and lower 4-bit comparator blocks, reducing comparator count versus full-flash while maintaining 20 MSPS throughput. Its internal resistor divider (320 Ω / 270 Ω / 80 Ω) generates a self-biased 2-V reference when REFTS–REFT and REFBS–REFB are shorted, eliminating external reference components.

Latency is fixed at 2.5 clock cycles from analog sampling to valid D1–D8 output. The device integrates an on-chip sample-and-hold, supports OE-controlled high-impedance output state, and separates analog (AGND/VDDA) and digital (DGND/VDDD) power domains - with recommended <100 mV AGND–DGND offset and dedicated decoupling per supply rail.

Key Specifications

Pinout & Package

TSSOP-24 package (PW), 7.8 mm × 4.4 mm × 1.2 mm height, moisture sensitivity level 2 (260°C reflow, 1-year floor life).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit, 20 MSPS ADC applications.

Compared with ADS820U and TLC5510INSR, the TLC5510IPWG4 uniquely integrates a calibrated 2-V reference network in a compact TSSOP-24 package - reducing component count and PCB area while maintaining identical dynamic performance and timing behavior.

Availability

TLC5510IPWG4 is available at Aetrix Electronics and suitable for digital television tuners, QAM demodulators, medical ultrasound beamformers, and high-speed data acquisition systems requiring stable component supply across extended production lifecycles.

Supply support for TLC5510IPWG4 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 heritage in high-performance data converters.

The TLC5510IPWG4 belongs to TI's legacy high-speed ADC product line designed specifically for cost-sensitive, medium-bandwidth video and communications digitization - emphasizing integration, single-supply operation, and production-ready reliability.

FAQ

What is the full-scale input voltage range of the TLC5510IPWG4?

The TLC5510IPWG4 has a 2-V full-scale input range. This is generated internally using a 320 Ω / 270 Ω / 80 Ω resistor divider between VDDA and AGND. To activate it, REFT must be shorted to REFTS and REFB to REFBS - no external reference components are required. The TLC5510IPWG4 specification sheet confirms this configuration yields a nominal 2.02-V reference at 25°C.

Does the TLC5510IPWG4 require separate analog and digital ground planes?

Yes. Although AGND and DGND are connected internally, TI's application guidance mandates physical separation: AGND and DGND traces must be tied to distinct ground planes on the PCB, with AGND shielding the ANALOG IN path. The TLC5510IPWG4 datasheet specifies maximum AGND–DGND offset of ±100 mV to maintain SFDR and INL performance - achieved only via split-plane layout and star grounding at the device.

What is the latency from clock edge to valid data output on the TLC5510IPWG4?

The TLC5510IPWG4 exhibits a fixed 2.5-clock-cycle latency from the falling edge of CLK to valid D1–D8 output. This is inherent to its semiflash architecture, where sampling, upper-bit resolution, lower-bit resolution, and data latching occur across four clock phases. The timing diagram in the TLC5510IPWG4 datasheet (Figure 1) explicitly defines td(D) as 18–30 ns at 20 MHz, confirming deterministic pipeline delay.

Can the TLC5510IPWG4 operate with a 3.3-V supply?

No. The TLC5510IPWG4 is specified only for 4.75 V to 5.25 V operation. Absolute maximum ratings cap VDDA and VDDD at 7 V, but functional operation below 4.75 V is not characterized - parameters like INL, SNR, and conversion rate degrade outside the recommended range. The TLC5510IPWG4 datasheet states "5-V single-supply operation" as a core feature and does not provide 3.3-V electrical characteristics.

How does the OE pin function on the TLC5510IPWG4?

The OE (Output Enable) pin on the TLC5510IPWG4 is active-low: when OE = low, D1–D8 drive valid logic levels; when OE = high, all eight outputs enter high-impedance state. This allows multiple TLC5510IPWG4 devices to share a common data bus without contention. The datasheet specifies t_en = 5 ns (OE↓ to valid data) and t_dis = 7 ns (OE↑ to high-Z), enabling precise bus arbitration in FPGA-based systems.