Texas Instruments ADC10D020CIVS/NOPB

Overview

ADC10D020CIVS/NOPB from Texas Instruments is a dual-channel, 10-bit, 20 MSPS analog-to-digital converter with internal sample-and-hold and reference, operating from a single 3.0 V supply at 150 mW typical power. It delivers 9.5 ENOB over the full Nyquist band and supports both multiplexed (10-bit shared bus) and parallel (20-bit simultaneous) output modes for digital video and CCD imaging systems.

For engineers reviewing the ADC10D020CIVS/NOPB datasheet, ADC10D020CIVS/NOPB pinout, ADC10D020CIVS/NOPB application, or ADC10D020CIVS/NOPB equivalent, key selection considerations include its dual-gain input scaling (±VREF/2 or ±VREF), offset correction capability, <10 ps rms aperture jitter, and flexible 1.5–3.6 V digital I/O supply (VDR) for low-voltage system interfacing.

Technical Context

The ADC10D020CIVS/NOPB employs a two-stage pipelined architecture enabling 9.5 effective bits at 20 MHz input frequency while maintaining no missing codes across −40°C to +85°C. Its differential analog inputs (I+/I− and Q+/Q−) support selectable gain via the GAIN pin, and internal reference (VREF) sets full-scale range from 0.8 V to 1.5 V.

Dual output configurations are controlled by the OS pin: parallel mode (I0–I9 and Q0–Q9 active simultaneously) yields 2.5 clock-cycle latency, while multiplexed mode uses a single 10-bit bus with I/Q control signaling and 2.5/3.0 clock-cycle latency for I/Q data respectively. Offset correction (OC pin) performs on-chip averaging of 32 conversions to reduce DC offset error to ±1.5 LSB.

Key Specifications

Pinout & Package

The ADC10D020CIVS/NOPB is housed in a 48-pin TQFP (Thin Quad Flat Package) with exposed thermal pad, optimized for thermal dissipation and board-level signal integrity in high-speed sampling applications.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-channel 10-bit ADC applications.

Compared with ADS5270IPFP and MAX1186ETL+, the ADC10D020CIVS/NOPB uniquely balances dual independent pipelines, on-chip reference, flexible I/O voltage, and ultra-low power-down consumption-making it optimal for portable, battery-sensitive, and space-constrained dual-signal acquisition.

Availability

ADC10D020CIVS/NOPB is available at Aetrix Electronics and suitable for digital video acquisition, CCD imaging systems, portable ultrasound front-ends, and communications baseband processing requiring stable component supply and long-term production continuity.

Supply support for ADC10D020CIVS/NOPB 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 ADC10D020CIVS/NOPB belongs to TI's precision high-speed ADC product line, designed specifically for dual-path, low-power, medium-resolution digitization in portable and imaging equipment where thermal and board-area constraints dominate.

FAQ

What is the guaranteed operating temperature range for the ADC10D020CIVS/NOPB?

The ADC10D020CIVS/NOPB is specified for continuous operation across the industrial temperature range of −40°C to +85°C. All key parameters-including ENOB, DNL, and power consumption-are ensured over this full range per the SNAS143D datasheet revision March 2013. No derating or external compensation is required for operation within these limits.

Does the ADC10D020CIVS/NOPB require an external reference voltage?

No, the ADC10D020CIVS/NOPB includes internal reference capability and can operate with only the VREF pin supplied (0.8–1.5 V). An external reference is optional and used only when higher accuracy or custom full-scale scaling is needed. The internal reference structure is validated for no missing codes and 9.5 ENOB performance across temperature.

How does the offset correction feature work on the ADC10D020CIVS/NOPB?

The ADC10D020CIVS/NOPB offset correction is initiated by a low-to-high transition on the OC pin, triggering a 34-clock-cycle internal sequence that averages 32 conversions per channel. During this period, both I+−I− and Q+−Q− must be held at 0 V differential. Post-correction, offset error is reduced from ±2.0 LSB to ±1.5 LSB typical, and the correction remains active until the next OC pulse.

Can the ADC10D020CIVS/NOPB interface directly with a 1.8 V FPGA?

Yes-the ADC10D020CIVS/NOPB supports independent digital output driver supply (VDR) from 1.5 V to 3.6 V. When VDR is set to 1.8 V and properly bypassed, all I0–I9 and Q0–Q9 outputs meet 1.8 V logic thresholds (VOH ≥ 1.5 V, VOL ≤ 0.4 V at 1.6 mA sink), enabling direct connection to 1.8 V FPGA I/O banks without level shifters.

What is the latency difference between multiplexed and parallel output modes on the ADC10D020CIVS/NOPB?

In parallel mode (OS = high), both I and Q data appear simultaneously after 2.5 clock cycles of pipeline delay. In multiplexed mode (OS = low), I-data is valid after 2.5 cycles and Q-data after 3.0 cycles on the shared I0–I9 bus, with the I/Q pin indicating active channel. This asymmetry must be accounted for in real-time data alignment logic.