Renesas IDTADC0804S030-DB

Overview

IDTADC0804S030 from Integrated Device Technology is an 8-bit, 30 MHz high-speed analog-to-digital converter optimized for professional video digitization and transient signal capture. It delivers one-cycle conversion, ±0.2 LSB integral non-linearity, 7.8 effective bits at 4.43 MHz input, and TTL/CMOS-compatible digital I/O with 3 V to 5 V output supply. Used in radar front-ends and GPS receivers where low-latency sampling and DC-capable acquisition are required.

For engineers reviewing the IDTADC0804S030 datasheet, IDTADC0804S030 pinout, IDTADC0804S030 application, or IDTADC0804S030 equivalent, key selection criteria include its external reference ladder architecture, SSOP28 package with dual ground separation (AGND/DGND/OGND), 175 mW typical power dissipation, and guaranteed no-missing-codes performance across 0 °C to 70 °C ambient.

Technical Context

The IDTADC0804S030 employs a flash-based conversion core with internal track-and-latch, enabling single-clock-cycle sampling without external sample-and-hold circuitry. Its resistor ladder reference network (RB/RM/RT pins) requires external voltage sourcing, distinguishing it from internally regulated alternatives like the ADC1003S series.

Digital outputs use In-Range (IR) CMOS logic with separate VCCO (3.0–5.25 V) and OGND, while analog (VCCA) and digital (VCCD) supplies operate at 4.75–5.25 V with strict ΔVCC limits (±0.2 V between VCCA and VCCD). Timing parameters include 3 ns sampling delay and 10–13 ns output delay dependent on VCCO.

Key Specifications

Pinout & Package

Package: SSOP28 (SOT341-1), plastic shrink small outline, 28-pin, 5.3 mm body width, 0.65 mm pitch.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar analog-to-digital conversion applications.

Compared with IDTADC0804S030, ADC1004S030 offers higher resolution without changing PCB layout, while ADC1003S030 trades external reference flexibility for reduced component count - both require validation of timing margins and power sequencing in new designs.

Availability

IDTADC0804S030 is available at Aetrix Electronics and suitable for video digitizing, radar signal acquisition, and GPS receiver front-ends requiring stable component supply across industrial temperature ranges and long production lifecycles.

Supply support for IDTADC0804S030 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

Integrated Device Technology (IDT), now part of Renesas Electronics, designs high-performance timing, memory interface, and data conversion ICs for communications, computing, and industrial markets.

IDTADC0804S030 belongs to IDT's professional video ADC family, engineered specifically for low-latency, DC-capable digitization in broadcast, defense, and navigation systems where jitter tolerance and missing-code immunity are non-negotiable.

FAQ

What is the maximum clock frequency supported by IDTADC0804S030?

IDTADC0804S030 supports a maximum clock frequency of 30 MHz, as specified in Table 1 and Table 6 of its datasheet. This defines its real-time sampling capability and corresponds to a Nyquist bandwidth of 15 MHz. Operation above this frequency risks timing violations, increased INL/DNL, and potential loss of guaranteed no-missing-codes performance. The device is rated for reliable operation only up to 30 MHz under all specified supply and temperature conditions.

Does IDTADC0804S030 include an internal voltage reference?

No, IDTADC0804S030 does not include an internal voltage reference. It requires external sourcing of reference voltages at pins RB (bottom), RM (middle), and RT (top) to establish its 2.02 V p-p analog input range. The datasheet explicitly states that applications needing internal reference regulation should use the ADC1003S030/040/050 family instead. This external reference architecture allows users to optimize SNR and drift performance using precision external sources.

How is the analog input range configured on IDTADC0804S030?

The analog input range of IDTADC0804S030 is configured via three external reference pins: RB (1.3 V nominal), RM (2.5 V nominal), and RT (3.67 V nominal). These connect to a built-in resistor ladder; the differential voltage VRT − VRB = 2.37 V sets the full-scale range, resulting in a typical 2.02 V p-p input window (1.475 V to 3.495 V). Users must supply stable, low-noise voltages to RB and RT - RM is internally derived and not externally driven.

What is the purpose of the IR (In-Range) output on IDTADC0804S030?

The IR (In-Range) output on IDTADC0804S030 is a CMOS-level status flag indicating whether the analog input voltage VI falls within the valid conversion range (code 0 to 255). IR = HIGH when 1.475 V ≤ VI ≤ 3.495 V; it goes LOW for underflow (<1.475 V) or overflow (>3.495 V). This eliminates the need for software comparison of D7–D0 values, accelerating real-time decision-making in video sync detection or radar pulse validation circuits.

Can IDTADC0804S030 operate with mixed supply voltages?

Yes, IDTADC0804S030 supports mixed supply voltages: VCCA and VCCD are fixed at 4.75–5.25 V for analog and digital cores, while VCCO is independently configurable from 3.0 V to 5.25 V to match downstream logic families. However, absolute voltage differences are strictly limited: |VCCA − VCCD| ≤ 0.2 V and |VCCA − VCCO| ≤ 2.25 V per Table 6. Violating these ΔVCC limits risks latch-up or parametric shift and is not permitted in production designs.