Texas Instruments ADS830E/2K5

Overview

ADS830E/2K5 from Texas Instruments is an 8-bit, 60MHz pipelined analog-to-digital converter (ADC) with single-ended or differential input capability, internal/external reference selection, and SSOP-20 packaging. It delivers 49.5dB SNR at 1MHz, ±0.2LSB DNL, and operates from a single +5V supply - enabling high-fidelity digitization in medical imaging and video systems.

For engineers reviewing the ADS830E/2K5 datasheet, ADS830E/2K5 pinout, ADS830E/2K5 application, or ADS830E/2K5 equivalent, key selection considerations include its 4-clock-cycle latency, 2Vp-p/1Vp-p programmable input range, 3ns aperture delay, 1.2ps rms aperture jitter, and VDRV-supplied 3V/5V logic-compatible outputs.

Technical Context

The ADS830E/2K5 employs a 6-stage pipelined CMOS architecture with digital error correction to guarantee no missing codes and ±0.2LSB differential linearity at 10MHz input. Its track-and-hold supports both single-ended and differential analog inputs, with common-mode biasing via the CM pin or external resistive divider between REFT (+3.0V) and REFB (+2.0V).

Reference operation is configurable via the INT/EXT pin: internal bandgap reference (±100mV tolerance) or external reference (REFB: 1.25–2.0V; REFT: 2.75–3.75V). Input range selection (RSEL pin) sets full-scale swing to either 1Vp-p or 2Vp-p, directly determining the 1.5–3.5V or 2–3V single-ended input voltage window.

Key Specifications

Pinout & Package

ADS830E/2K5 is housed in a 20-pin SSOP (DBQ) package with 0.65mm pitch, RoHS-compliant NiPdAu lead finish, and MSL Level-2-260°C-1 year rating. Thermal resistance θ_JA is 115°C/W.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADS830E/2K5, ADS831E/2K5 offers higher speed at minor linearity cost, while MAX1186EEE+ sacrifices configurability for integrated simplicity - making ADS830E/2K5 the optimal balance of flexibility, precision, and layout compatibility for multi-application designs.

Availability

ADS830E/2K5 is available at Aetrix Electronics and suitable for medical imaging systems, video digitizing equipment, communications baseband receivers, and disk-drive read channel designs requiring stable component supply and long-term production continuity.

Supply support for ADS830E/2K5 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 connectivity technologies, with decades of leadership in high-performance data converters.

The ADS830E/2K5 belongs to TI's high-speed pipeline ADC product line, engineered for applications demanding low distortion, excellent SNR, and flexible analog interface options in medical, video, and communications systems.

FAQ

What is the maximum sampling rate supported by the ADS830E/2K5?

The ADS830E/2K5 supports a maximum sampling rate of 60 million samples per second (60MSPS), as specified across its full operating temperature range (–40°C to +85°C). This rate is achievable with proper clock conditioning - including <2ns rise/fall times and ≤1.2ps rms jitter - and appropriate analog input drive strength to maintain SFDR >65dBFS.

Does the ADS830E/2K5 require separate analog and digital supplies?

No, the ADS830E/2K5 operates from a single +5V analog supply (+VS) for its core, reference, and track-and-hold circuits. However, it features a dedicated VDRV pin to independently power its digital outputs at either +3V or +5V - enabling logic-level compatibility and reducing digital switching noise coupling into the analog domain without requiring a second supply rail.

Can the ADS830E/2K5 be used with differential analog inputs?

Yes, the ADS830E/2K5 accepts differential analog inputs on pins 16 (IN) and 17 (IN), supporting improved spurious performance over single-ended operation. When used differentially, the input range remains 2Vp-p or 1Vp-p (selected via RSEL), and common-mode bias is applied via the CM pin or an external resistor divider between REFT and REFB - ensuring matched impedance and optimal AC performance.

What is the purpose of the VDRV pin on the ADS830E/2K5?

The VDRV pin on the ADS830E/2K5 supplies power exclusively to the digital output drivers, decoupling logic-level generation from the analog +VS supply. Setting VDRV to +3V reduces output-stage power dissipation by ~15mW and minimizes current transients that could degrade SNR - while maintaining full CMOS/TTL compatibility for interfacing with FPGAs, ASICs, or memory controllers.

How does reference selection work on the ADS830E/2K5?

Reference selection on the ADS830E/2K5 is controlled by the INT/EXT pin: pulling it LOW enables the internal bandgap reference (REFT ≈ +3.0V, REFB ≈ +2.0V), while driving it HIGH disables internal buffers and allows external reference voltages (REFB: 1.25–2.0V; REFT: 2.75–3.75V) - facilitating multi-ADC gain/offset matching or custom full-scale adjustment in precision systems.