NXP Semiconductors ADC0801S040TS/C1:1

Overview

ADC0801S040TS/C1:1 from NXP Semiconductors is an 8-bit parallel-output analog-to-digital converter optimized for video digitization and general-purpose high-speed sampling. It operates from 2.7 V to 5.5 V analog/digital/output supplies, achieves 40 MHz maximum sampling rate, delivers 7.3 effective bits at 4.43 MHz full-scale input, and supports CMOS/TTL-compatible digital I/O with sleep mode reducing power to 4 mW. It is used in PAL-compliant camera and camcorder front-ends.

For engineers reviewing the ADC0801S040TS/C1:1 datasheet, ADC0801S040TS/C1:1 pinout, ADC0801S040TS/C1:1 application, or ADC0801S040TS/C1:1 equivalent, key selection considerations include its resistor-ladder reference architecture (RB/RM/RT pins), no sample-and-hold requirement, low 2 pF analog input capacitance, 3 ns analog settling time, and SSOP20 package compatibility with video signal chain layouts.

Technical Context

The ADC0801S040TS/C1:1 employs a precision internal resistor ladder with externally accessible reference terminals (RB, RM, RT) enabling flexible full-scale range configuration and multi-device matching. Its conversion core uses a flash architecture with built-in latch drivers, supporting DC-coupled and AC-coupled analog inputs up to 20 MHz bandwidth at 50% full-scale.

Digital interface timing is tightly specified: 9 ns minimum clock pulse width, 5 ns output hold time, and 8–21 ns output delay dependent on VDDO. Sleep mode disables internal logic while preserving pin states, reducing total current draw to 1.2 mA (IDDA + IDDD).

Key Specifications

Pinout & Package

ADC0801S040TS/C1:1 is housed in a plastic shrink small outline package (SSOP20, SOT266-1) with 20 leads, 4.4 mm body width, and 0.65 mm lead pitch. The package supports automated surface-mount assembly and provides thermal resistance of 120 K/W (junction-to-ambient).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit, 40 MHz ADC applications.

Compared with ADS7822U and MAX1186EEE+, the ADC0801S040TS/C1:1 uniquely supports wide-supply operation (2.7–5.5 V), external resistor-ladder referencing for multi-ADC matching, and true 40 MSPS parallel output - making it the only option among the three qualified for PAL/NTSC video digitization.

Availability

ADC0801S040TS/C1:1 is available at Aetrix Electronics and suitable for video data digitizing, camera front-end design, camcorder signal chains, and automotive sensor interface applications requiring stable component supply across extended production lifecycles.

Supply support for ADC0801S040TS/C1:1 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

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and consumer markets.

The ADC0801S040TS/C1:1 belongs to NXP's legacy high-speed data converter product line, designed specifically for cost-sensitive, medium-resolution video and communications applications where parallel interface, low power, and flexible referencing are essential.

FAQ

What is the maximum clock frequency supported by the ADC0801S040TS/C1:1?

The ADC0801S040TS/C1:1 supports a maximum clock frequency of 40 MHz, as confirmed in the Quick Reference Data table and Characteristics section. At this rate, it achieves full 8-bit conversion with guaranteed timing margins including 9 ns minimum clock pulse width and 5 ns output hold time. Operation above 40 MHz is not characterized and may result in increased INL/DNL or data corruption.

Does the ADC0801S040TS/C1:1 require an external sample-and-hold circuit?

No, the ADC0801S040TS/C1:1 does not require an external sample-and-hold circuit. Its internal flash architecture and 3 ns analog input settling time enable direct sampling of fast-changing signals such as video waveforms. This is explicitly stated in the Features section and validated by timing diagrams showing VI-to-Dx propagation without intermediate storage.

How is the reference voltage configured on the ADC0801S040TS/C1:1?

The ADC0801S040TS/C1:1 uses an external resistor ladder with three dedicated pins: RB (bottom reference), RM (middle tap), and RT (top reference). Typical configuration applies 1.2 V to RB and 3.3 V to RT, yielding a 2.1 V differential reference (V_ref(dif)) across the internal 2.2 kΩ ladder. This architecture allows precise full-scale adjustment and multi-device matching in parallel ADC systems.

What power savings does the sleep mode provide for the ADC0801S040TS/C1:1?

In sleep mode (SLEEP pin = HIGH), the ADC0801S040TS/C1:1 reduces total supply current to 1.2 mA (IDDA + IDDD), dropping power dissipation to 4 mW - a reduction of over 85% compared to active-mode typical consumption of 30 mW. Outputs enter high-impedance state, but analog input remains functional, allowing rapid wake-up without reinitialization.

Is the ADC0801S040TS/C1:1 compatible with 5 V TTL logic levels?

Yes, the ADC0801S040TS/C1:1 supports 5 V TTL-compatible digital I/O. Its VDDD and VDDO supplies accept 2.7–5.5 V, and output voltage levels meet TTL thresholds: VOH ≥ VDDO − 0.5 V and VOL ≤ 0.5 V at 1 mA load. Input thresholds scale with VDDD (e.g., VIH ≥ 0.6 × VDDD), ensuring robust interfacing with both 3.3 V and 5 V controllers.