Texas Instruments ADS8413IRGZT

Overview

ADS8413IRGZT from Texas Instruments is a 16-bit, 2-MSPS SAR analog-to-digital converter with unipolar differential input range (–4 V to +4 V), 4-V internal reference, and 200-Mbps LVDS serial interface. It delivers 92 dB SNR and –107 dB THD at 10 kHz, enabling high-fidelity data acquisition in medical instrumentation and closed-loop control systems.

For engineers reviewing the ADS8413IRGZT datasheet, ADS8413IRGZT pinout, ADS8413IRGZT application, or ADS8413IRGZT equivalent, key selection criteria include zero-latency operation at full speed, ±2 LSB INL max, nap mode (125 mW), power-down (5 µW), and daisy-chain/cascade support via LVDS interface.

Technical Context

The ADS8413IRGZT implements a capacitor-based SAR architecture with integrated sample-and-hold, supporting true zero-latency conversion at 2 MSPS. Its LVDS interface operates at up to 210 MHz with configurable 16-/8-bit frame modes and supports daisy-chaining or cascading of up to four devices.

It features dual power domains (+VA = 5 V for analog/LVDS inputs; +VBD = 3.3 V or 5 V for digital/LVDS outputs), internal 4.096-V reference with 36 ppm/°C drift, and selectable clock source (internal 200-MHz oscillator or external LVDS clock).

Key Specifications

Pinout & Package

ADS8413IRGZT is housed in a 48-pin QFN package (RGZ) with exposed thermal pad, optimized for low-inductance analog grounding and high-speed LVDS signal integrity.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADS8412IRGZT and ADS8402IPFBR, the ADS8413IRGZT uniquely integrates internal reference, LVDS daisy-chain support, and zero-latency operation - making it optimal for space-constrained, multi-channel, high-fidelity acquisition systems requiring minimal external components and deterministic timing.

Availability

ADS8413IRGZT is available at Aetrix Electronics and suitable for medical instrumentation, high-speed data acquisition systems, closed-loop industrial control, and communications test equipment requiring stable component supply and long-term production continuity.

Supply support for ADS8413IRGZT 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 medical applications.

The ADS8413IRGZT belongs to TI's high-speed SAR ADC family designed for precision, low-latency digitization in real-time systems - emphasizing signal integrity, power efficiency, and interface flexibility for next-generation DAQ platforms.

FAQ

What is the maximum sample rate supported by the ADS8413IRGZT?

The ADS8413IRGZT supports a maximum throughput rate of 2 MSPS under recommended operating conditions. This is achieved with fixed conversion time of 391 ns at +VBD = 5 V and acquisition time of 100 ns. The device maintains zero latency at full speed, meaning valid data is available immediately after conversion completion without pipeline delay - a key advantage for real-time control applications using the ADS8413IRGZT.

Does the ADS8413IRGZT include an internal voltage reference?

Yes, the ADS8413IRGZT integrates a precision 4.096-V internal reference with typical drift of 36 ppm/°C and start-up time of 25 ms when using a 1-µF storage capacitor on REFOUT. The reference can be used directly by connecting REFOUT to REFIN, or bypassed in favor of an external reference applied to REFIN. This internal reference eliminates the need for external reference ICs in many applications, simplifying design and improving system-level accuracy of the ADS8413IRGZT.

How does the LVDS interface of the ADS8413IRGZT support multiple-device configurations?

The ADS8413IRGZT supports daisy-chain and cascade topologies using its LVDS interface (SDO±/CLK_O±/SYNC_O±) and handshaking signals (BUS_BUSY, RD). In daisy chain (MODE_C/D = 0), up to four devices share one LVDS bus with automatic timing alignment via SYNC_O framing. In cascade (MODE_C/D = 1), BUS_BUSY falling edge signals bus release - enabling deterministic multi-device arbitration. This architecture reduces FPGA I/O usage and simplifies synchronization across channels in systems using multiple ADS8413IRGZT units.

What power-saving modes are available on the ADS8413IRGZT?

The ADS8413IRGZT offers two low-power states: Nap mode (125 mW at 2 MSPS) and Power Down (5 µW). Nap mode reduces analog circuit bias current while preserving reference and interface readiness - ideal for intermittent sampling. Power Down disables all internal circuits except wake-up logic; recovery takes 25 ms due to reference re-stabilization. Both modes are controlled via dedicated pins (NAP and PD), allowing dynamic power management in battery-operated or thermally constrained applications using the ADS8413IRGZT.

What is the input voltage range specification for the ADS8413IRGZT?

The ADS8413IRGZT features a unipolar differential input range of –4 V to +4 V, corresponding to a full-scale span of 8 Vpp centered at +Vref/2 = +2.048 V common-mode voltage. Absolute input limits are –0.2 V to (Vref + 0.2 V) per pin, with input capacitance of 25 pF and leakage current ≤500 pA. This range supports direct connection to precision op-amp drivers without level-shifting, maintaining signal integrity for high-resolution measurements with the ADS8413IRGZT.