Texas Instruments ADC08200EVAL

Overview

ADC08200EVAL from Texas Instruments is an evaluation board for the ADC08200 - an 8-bit, 200 Msps low-power analog-to-digital converter with internal sample-and-hold, single-ended input, and +3V operation. It supports full-speed characterization of dynamic performance (ENOB = 7.3 bits at 50 MHz input), power-down mode (1 mW), and TTL/CMOS-compatible digital outputs in a 24-lead TSSOP package. Designed for high-speed imaging and communications signal acquisition.

For engineers reviewing the ADC08200EVAL datasheet, ADC08200EVAL pinout, ADC08200EVAL application, or ADC08200EVAL equivalent, this evaluation platform enables rapid validation of ADC08200 timing margins, reference ladder configuration (VRT/VRB/VRM), analog input drive requirements, and power supply decoupling strategies under real-world 200 Msps sampling conditions.

Technical Context

The ADC08200EVAL implements a complete signal chain interface for the ADC08200 IC, including configurable reference biasing (VRT/VRB/VRM), LMH6702-based analog input driver with RC anti-alias filtering, and separate analog/digital ground planes with dedicated VA and VDR supplies. It supports both DC-coupled and AC-coupled input configurations.

Board-level design incorporates TI-recommended decoupling: 0.1 µF ceramic + 10 µF bulk capacitors per VA pin, 0.1 µF on VRM, and independent DR GND return for output drivers. Clock input accepts LVCMOS/TTL-level 200 MHz signals with precise trace length matching to minimize aperture jitter (2 ps rms).

Key Specifications

Availability

ADC08200EVAL is available at Aetrix Electronics and suitable for flat panel display timing calibration, medical imaging front-end prototyping, and set-top box RF digitization requiring stable component supply and validated reference design implementation.

Supply support for ADC08200EVAL 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 company specializing in analog and embedded processing technologies, with leadership in data converters, power management, and high-speed interface solutions.

The ADC08200EVAL belongs to TI's high-speed data converter evaluation platform family, engineered to accelerate time-to-validation for 8-bit, 200 Msps+ ADC applications in communications, imaging, and instrumentation systems.

FAQ

What is the primary function of the ADC08200EVAL board?

The ADC08200EVAL board is a dedicated evaluation platform for the ADC08200 8-bit, 200 Msps analog-to-digital converter. It provides all necessary circuitry-including reference biasing (VRT/VRB/VRM), analog input conditioning with LMH6702 driver, clock distribution, and digital output interfacing-to fully characterize the ADC08200's dynamic performance (ENOB, SINAD, SFDR), power consumption (1.05 mW/Msps), and timing behavior (aperture jitter = 2 ps rms) under real operating conditions. ADC08200EVAL does not contain the ADC08200 IC itself but is designed to host it.

Does ADC08200EVAL include the ADC08200 IC?

No, ADC08200EVAL is an evaluation board only and does not include the ADC08200 IC. The board features a socketed 24-lead TSSOP footprint compatible with the ADC08200, allowing users to insert their own device for testing. TI documentation confirms ADC08200EVAL is sold separately from the ADC08200 IC, and ordering requires both part numbers: ADC08200EVAL for the board and ADC08200 (e.g., ADC08200PW) for the converter.

Which analog input driver is recommended on ADC08200EVAL?

The ADC08200EVAL uses the LMH6702 ultra-wideband current-feedback amplifier as its primary analog input driver, as specified in TI's SNAS136M datasheet Figure 33. This driver is selected for its ability to settle within the ADC08200's clock high time (≥0.75 ns), handle the ADC's clock-dependent input capacitance (3–4 pF), and maintain stability with the recommended RC filter (18–47 Ω + capacitor). ADC08200EVAL implements this exact topology with gain/offset adjustment and optional RC filtering.

How does ADC08200EVAL support reference voltage configuration?

ADC08200EVAL provides flexible reference configuration through three dedicated pins: VRT (top reference), VRB (bottom reference), and VRM (midpoint). It supports both passive biasing (via onboard potentiometers per Figure 31) and active driving (using dual op-amps per Figure 32) for precise VRT/VRB control. VRM is bypassed with a 0.1 µF capacitor to a quiet ground point, as required by the ADC08200 datasheet. This allows users to validate reference ladder linearity, full-scale error (≤50 mV), and ENOB degradation across different VRT–VRB deltas (1.6–2.3 V).

Can ADC08200EVAL be used to verify power-down functionality?

Yes, ADC08200EVAL fully supports verification of the ADC08200's power-down mode. The PD pin is accessible via test point and header, enabling direct TTL/CMOS-level control. When PD is driven high, the ADC08200 enters power-down mode consuming ≤1 mW (typical), and its D0–D7 outputs hold the last conversion result. ADC08200EVAL's power measurement points allow accurate current monitoring of both active (210 mW at 200 Msps) and power-down states, validating the 1.05 mW/Msps scaling law.