Texas Instruments TLC5510INSLE

Overview

TLC5510INSLE 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 linearity 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 TLC5510INSLE datasheet, TLC5510INSLE pinout, TLC5510INSLE application, or TLC5510INSLE equivalent, key selection criteria include its 2-V internal reference configuration, 2.5-clock latency, differential nonlinearity of ±0.5 LSB at 25°C, and SO-24 package compatibility with legacy video acquisition systems requiring stable 20-MSPS sampling without external reference components.

Technical Context

The TLC5510INSLE implements a two-step semiflash conversion architecture: upper and lower 4-bit comparator blocks operate in staggered clock phases to reduce comparator count and power versus full-flash ADCs. Its internal 3-resistor divider (320 Ω / 270 Ω / 80 Ω) generates a nominal 2-V reference between REFT and REFB when REFTS is shorted to REFT and REFBS to REFB.

Conversion latency is fixed at 2.5 clock cycles; output enable (OE) controls high-impedance tri-state on D1–D8; analog input bandwidth is 14 MHz (–1 dB); and aperture jitter is 30 ps - enabling accurate digitization of NTSC-compliant video signals and intermediate-frequency IF samples in broadband receivers.

Key Specifications

Pinout & Package

Package: SO-24 (NS), 7.5 mm × 15.4 mm body, 1.27 mm pitch, plastic dual in-line, lead-free (Green RoHS & no Sb/Br), MSL Level-1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed 8-bit ADC applications.

Compared with MAX1180BCWI+ and AD9057BSTZ-80, the TLC5510INSLE uniquely integrates the 2-V reference generation function in a 5-V SO-24 package, reducing component count and layout sensitivity - making it optimal for cost-constrained, space-limited video digitization where 20 MSPS suffices.

Availability

TLC5510INSLE is available at Aetrix Electronics and suitable for digital television tuners, QAM demodulators, medical ultrasound receivers, and video conferencing hardware requiring stable component supply during legacy system maintenance and redesign cycles.

Supply support for TLC5510INSLE 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 technologies - with over 50 years of innovation in data conversion and signal chain solutions.

The TLC5510 series belongs to TI's high-speed data converter product line, designed specifically for cost-sensitive, medium-bandwidth video and communications digitization where integration, power efficiency, and ease of use outweigh ultra-high resolution or GHz-rate sampling.

FAQ

What is the full-scale input voltage range of the TLC5510INSLE?

The TLC5510INSLE has a 2-V full-scale analog input range, achieved using its internal 3-resistor voltage divider (320 Ω / 270 Ω / 80 Ω) between VDDA and AGND. When REFT is shorted to REFTS and REFB to REFBS, the device self-generates a nominal 2.02-V reference - eliminating external reference components in standard video applications. This specification is confirmed in the "Available Options" table and electrical characteristics section of the SLAS095L datasheet.

Does the TLC5510INSLE require an external reference voltage source?

No, the TLC5510INSLE does not require an external reference voltage source for its standard 2-V full-scale operation. It uses three internal precision resistors to generate the reference voltage - REFT and REFB form the top and bottom nodes, with REFTS and REFBS serving as jumper terminals. Shorting REFT to REFTS and REFB to REFBS configures the internal divider for 2-V span, as shown in Figure 3 of the SLAS095L datasheet. The TLC5510INSLE is specifically designated for this 2-V variant.

What is the conversion latency of the TLC5510INSLE, and how does it affect system timing?

The TLC5510INSLE exhibits a fixed conversion latency of 2.5 clock cycles from analog sampling (falling CLK edge) to valid D1–D8 output. This deterministic delay simplifies timing closure in synchronous video pipelines and FPGA-based demodulators. For example, at 20 MHz clock, latency is 125 ns - enabling precise alignment with downstream DSP blocks. The value is specified in the "Principles of Operation" section and verified in Figure 2's functional timing diagram of the SLAS095L datasheet.

Can the TLC5510INSLE operate with a 3.3-V digital supply?

No, the TLC5510INSLE is specified only for 4.75 V to 5.25 V operation on both VDDA and VDDD pins. Its digital outputs (D1–D8) are CMOS-level compatible with 5-V logic families, and the internal circuitry - including comparators and encoders - is optimized for 5-V biasing. Attempting 3.3-V operation violates recommended conditions and risks invalid output states, increased DNL, or latch-up. The "Recommended Operating Conditions" table in SLAS095L explicitly lists 4.75–5.25 V as the valid range.

Is the TLC5510INSLE pin-compatible with the TLC5510IPW or TLC5510INSR?

Yes, the TLC5510INSLE is pin-compatible with TLC5510IPW (TSSOP-24) and TLC5510INSR (SO-24), sharing identical pin numbering, functions, and electrical behavior. All three variants use the same die and differ only in packaging and tape-and-reel configuration. The "Available Options" table confirms identical pinouts, and the functional block diagram and terminal functions apply uniformly across NS and PW packages - though thermal and high-frequency layout considerations differ due to package parasitics.