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Home > Products > Integrated Circuits (ICs) > Data Acquisition > Analog to Digital Converters (ADC)

Renesas ADC0808S250HW/C1:5

Name: ADC0808S250HW/C1:5
Brand: Renesas
SKU: ADC0808S250HW/C1:5
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADC0808S250HW/C1:5

Manufacturer:: Renesas

Category:: Analog to Digital Converters (ADC)

Package:: 48-TQFP Exposed Pad

Datasheet:: ADC0808S250HW/C1:5.pdf

Description:: IC ADC 8BIT 48HTQFP

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Product details

Overview

ADC0808S250HW/C1:5 from Integrated Device Technology is a differential, high-speed 8-bit analog-to-digital converter optimized for telecommunication transmission control and tape drive systems. It supports up to 250 MHz sampling, 560 MHz analog input bandwidth, and 1.8 V CMOS or LVDS clock inputs, with binary/2's complement outputs and only 2-clock-cycle latency.

For engineers reviewing the ADC0808S250HW/C1:5 datasheet, ADC0808S250HW/C1:5 pinout, ADC0808S250HW/C1:5 application, or ADC0808S250HW/C1:5 equivalent, key selection criteria include its programmable Complete Conversion Signal (CCS), differential analog input architecture, HTQFP48 thermal-enhanced package, industrial temperature range (−40 °C to +85 °C), and dual-mode clock interface compatibility.

Technical Context

The ADC0808S250HW/C1:5 implements a track-and-hold + resistor ladder ADC core with fully differential analog inputs (IN/INN) and integrated voltage regulation for both full-scale reference and common-mode bias (CMADC output = 0.95 V). Its digital interface uses 1.8 V CMOS outputs with configurable coding (binary or 2's complement) controlled by OTC and CE_N pins.

Timing is governed by a selectable clock input (LVDS or 1.8 V CMOS on CLK+/CLK−), with programmable CCS delay (via DEL0/DEL1) and frequency (f_clk or f_clk/2 via CCSSEL). Static digital inputs (CLKSEL, CCSSEL, CE_N, OTC, DEL0, DEL1) are all 1.8 V CMOS compatible, and the device achieves ≤ ±0.82 LSB INL and −53 dB THD at 250 MHz sampling.

Key Specifications

Parameter	Value and Actual Design Meaning
Resolution	8-bit quantization with guaranteed no missing codes
Max Sampling Rate	250 MHz - enables digitization of RF IF signals up to 125 MHz Nyquist zone
Analog Input Bandwidth	560 MHz (−3 dB) - supports wideband signal acquisition without external anti-alias filtering
Clock Interface	Selectable 1.8 V CMOS (rising-edge triggered) or LVDS (differential, 825–1575 mV swing)
Digital Output Format	Configurable binary or 2's complement via OTC/CE_N - simplifies DSP interface alignment
Latency	Only 2 clock cycles - critical for real-time closed-loop control in baseband processing
Supply Voltages	VCCA = 3.3 V (analog), VCCD/VCCO = 1.8 V (digital/output) - enables low-power mixed-signal operation
Operating Temperature	−40 °C to +85 °C - qualified for industrial and telecom infrastructure environments

Pinout & Package

The ADC0808S250HW/C1:5 is supplied in an HTQFP48 package (SOT545-2), 7 mm × 7 mm × 1 mm body with exposed die pad for thermal dissipation. Pin count is 48, with dedicated analog/digital/power/ground domains and internal connections clearly marked in datasheet Figure 2.

Pin/Terminal	Circuit Role	Design Meaning
IN / INN	Differential analog input pair	Accepts 2.0 V_p-p full-scale signal; common-mode voltage set internally (0.95 V) or externally via FSIN
CLK+ / CLK−	Differential clock input	Supports LVDS mode (825–1575 mV) or 1.8 V CMOS (CLK− grounded); CLKSEL selects mode
D0–D7	Parallel digital output bus	1.8 V CMOS outputs; data valid after td(o) ≤ 7.3 ns (LVDS clock); output format selected by OTC/CE_N
CCS	Complete Conversion Signal output	Programmable edge-aligned strobe (f_clk or f_clk/2) with three delay options (0.3/0.8/1.9 ns) for optimal data capture timing
CE_N	Chip enable (active LOW)	Places D0–D7, CCS, and IR into high-impedance state when HIGH - enables bus sharing
IR	In-range status indicator	CMOS output HIGH during normal conversion; LOW indicates underflow/overflow - enables real-time signal health monitoring

Key Features

Feature	Design Value
Programmable CCS	Adjustable delay (via DEL0/DEL1) and frequency (via CCSSEL) enables precise synchronization with downstream logic without external timing ICs
Dual clock interface	Single-pin CLKSEL selection between LVDS and 1.8 V CMOS eliminates need for external level-shifting circuitry
Integrated analog reference	On-chip regulator provides stable 0.95 V common-mode bias (CMADC) and supports external full-scale reference (1.15–1.35 V) via FSIN
Low-latency architecture	2-clock-cycle pipeline minimizes processing delay - essential for adaptive equalization and real-time feedback loops
Thermal-enhanced package	HTQFP48 with exposed die pad achieves R_th(j-c) = 14.3 K/W - sustains 240 mW total power at full 250 MHz operation

Applications

2.5G/3G Base Station Radio Transceivers	Optical Networking Line Cards
Use Scenario: Digitizing IF signals from quadrature demodulators in multi-carrier WCDMA/LTE radio front-ends. IC Role / Device Role / Timing Role: High-speed ADC capturing 122.88 MSPS IQ streams with < ±0.82 LSB INL to preserve EVM performance. Use Value: 560 MHz analog bandwidth allows direct sampling of 100 MHz IF without image-reject filtering; CCS timing ensures reliable latch alignment in FPGA-based digital downconverters.	Use Scenario: Converting analog monitor photodiode outputs in 10G/40G optical transponders for real-time laser bias control. IC Role / Device Role / Timing Role: Low-latency 8-bit digitizer interfacing with microcontroller ADC peripherals for closed-loop power stabilization. Use Value: 2-cycle latency and programmable CCS enable sub-microsecond response to optical power drift; 1.8 V CMOS outputs simplify interface to ARM Cortex-M4 GPIOs.
Wireless Access Point Baseband	Tape Drive Read Channel
Use Scenario: Sampling baseband I/Q signals in 802.11ac/ax access point PHYs operating in 5 GHz band. IC Role / Device Role / Timing Role: Differential ADC driving FFT engines in SoC-based WLAN chipsets with minimal jitter-induced SNR degradation. Use Value: −53 dB THD and 47 dBc SNR at 250 MHz sampling preserve OFDM constellation integrity; LVDS clock input rejects board-level noise in dense RF layouts.	Use Scenario: Digitizing analog playback signals from magnetic tape heads in enterprise LTO-7/8 drives. IC Role / Device Role / Timing Role: High-fidelity analog front-end ADC supporting PRML detection algorithms with precise timing recovery. Use Value: Programmable CCS delay aligns sampled data to PRML slicer clocks; differential input rejects common-mode noise from high-speed tape transport motors.

2.5G/3G Base Station Radio Transceivers

Optical Networking Line Cards

Use Scenario: Digitizing IF signals from quadrature demodulators in multi-carrier WCDMA/LTE radio front-ends.

IC Role / Device Role / Timing Role: High-speed ADC capturing 122.88 MSPS IQ streams with < ±0.82 LSB INL to preserve EVM performance.

Use Value: 560 MHz analog bandwidth allows direct sampling of 100 MHz IF without image-reject filtering; CCS timing ensures reliable latch alignment in FPGA-based digital downconverters.

Use Scenario: Converting analog monitor photodiode outputs in 10G/40G optical transponders for real-time laser bias control.

IC Role / Device Role / Timing Role: Low-latency 8-bit digitizer interfacing with microcontroller ADC peripherals for closed-loop power stabilization.

Use Value: 2-cycle latency and programmable CCS enable sub-microsecond response to optical power drift; 1.8 V CMOS outputs simplify interface to ARM Cortex-M4 GPIOs.

Wireless Access Point Baseband

Tape Drive Read Channel

Use Scenario: Sampling baseband I/Q signals in 802.11ac/ax access point PHYs operating in 5 GHz band.

IC Role / Device Role / Timing Role: Differential ADC driving FFT engines in SoC-based WLAN chipsets with minimal jitter-induced SNR degradation.

Use Value: −53 dB THD and 47 dBc SNR at 250 MHz sampling preserve OFDM constellation integrity; LVDS clock input rejects board-level noise in dense RF layouts.

Use Scenario: Digitizing analog playback signals from magnetic tape heads in enterprise LTO-7/8 drives.

IC Role / Device Role / Timing Role: High-fidelity analog front-end ADC supporting PRML detection algorithms with precise timing recovery.

Use Value: Programmable CCS delay aligns sampled data to PRML slicer clocks; differential input rejects common-mode noise from high-speed tape transport motors.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADC0808S125HW-C1	Lower max sampling rate (125 MHz vs. 250 MHz); identical pinout, package, and feature set	Suitable for cost-sensitive 100 MHz IF sampling where 250 MHz headroom is unnecessary	Select ADC0808S125HW-C1 when system clocking constraints limit to ≤125 MHz and thermal budget is tighter
AD9288BSTZ-100	8-bit, dual-channel, 100 MSPS; different pinout (LQFP48), no CCS, LVDS-only clock, higher power (320 mW)	Targeted at lower-frequency dual-channel applications (e.g., video digitizers) rather than single-channel RF IF sampling	Choose AD9288BSTZ-100 only if dual-channel parallel capture is required and CCS timing control is not needed

Compared with ADC0808S125HW-C1, the ADC0808S250HW/C1:5 delivers double the sampling bandwidth while maintaining identical footprint and register compatibility; versus AD9288BSTZ-100, it offers superior single-channel timing control and lower power but lacks dual-channel capability.

Availability

ADC0808S250HW/C1:5 is available at Aetrix Electronics and suitable for 2.5G/3G base station radio transceivers, optical networking line cards, and tape drive read channel designs requiring stable component supply across extended production lifecycles.

Supply support for ADC0808S250HW/C1:5 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 RF signal conditioning ICs for communications and computing infrastructure.

The ADC0808S family was engineered specifically for high-speed data acquisition in telecom transmission control and tape drive systems, emphasizing low-latency conversion, flexible clocking, and robust analog input handling in thermally demanding environments.

FAQ

What is the maximum analog input frequency supported by the ADC0808S250HW/C1:5?

The ADC0808S250HW/C1:5 supports a maximum analog input frequency of 560 MHz (−3 dB bandwidth), enabling direct sampling of wideband IF signals without external anti-alias filtering. This specification is measured with full-scale sine-wave input at 125 MHz sampling and is validated across the industrial temperature range (−40 °C to +85 °C). The ADC0808S250HW/C1:5 maintains this bandwidth regardless of clock input mode (LVDS or 1.8 V CMOS).

How does the Complete Conversion Signal (CCS) function on the ADC0808S250HW/C1:5?

The CCS output on the ADC0808S250HW/C1:5 is a programmable strobe synchronized to the conversion cycle, configurable for either f_clk or f_clk/2 frequency via CCSSEL and with three discrete delay options (0.3 ns, 0.8 ns, or 1.9 ns) selected by DEL0/DEL1. It is designed to align with the stable window of D0–D7 output data, eliminating setup/hold timing uncertainty in FPGA or ASIC interfaces. The ADC0808S250HW/C1:5 datasheet specifies CCS timing relative to CLK+ edge in Figure 6.

Can the ADC0808S250HW/C1:5 operate with an external reference voltage?

Yes, the ADC0808S250HW/C1:5 supports external full-scale reference voltages from 1.15 V to 1.35 V applied to the FSIN pin, which overrides the internal 1.25 V reference. When using external reference, the common-mode output on CMADC adjusts accordingly (e.g., 0.86 V at 1.20 V FSIN), and peak-to-peak input range scales to 1.825–2.18 V. The ADC0808S250HW/C1:5 requires FSIN to be referenced to AGND and draws only 12 µA input current.

What are the power supply requirements for the ADC0808S250HW/C1:5?

The ADC0808S250HW/C1:5 requires three independent supplies: VCCA = 3.0–3.6 V (typ. 3.3 V) for analog circuitry, VCCD = 1.65–1.95 V (typ. 1.8 V) for digital core, and VCCO = 1.65–1.95 V (typ. 1.8 V) for output drivers. At 250 MHz sampling, typical currents are ICCA = 60 mA, ICCD = 12 mA, and ICCO = 11 mA, yielding ~240 mW total power dissipation. All grounds (AGND1/AGND2/DGND1/OGNDx) must be shorted per datasheet Table 12 conditions.

Is the ADC0808S250HW/C1:5 pin-compatible with the ADC0808S125HW-C1?

Yes, the ADC0808S250HW/C1:5 is pin-compatible and package-compatible with the ADC0808S125HW-C1, both using the HTQFP48 (SOT545-2) package with identical pin configuration and electrical interface. The only functional difference is the maximum sampling rate (250 MHz vs. 125 MHz); all registers, control pins (CLKSEL, CCSSEL, DEL0/DEL1, OTC, CE_N), and output timing parameters scale accordingly. The ADC0808S250HW/C1:5 can directly replace ADC0808S125HW-C1 in existing designs where higher bandwidth is needed.

ADC0808S250HW/C1:5 Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: -

Package/Case:: 48-TQFP Exposed Pad

Packaging:: Tray

Product Status:: Active

Number of Bits:: 8

Sampling Rate (Per Second):: 250M

Number of Inputs:: 1

Input Type:: Differential

Data Interface:: Parallel

Configuration:: S/H-ADC

Ratio - S/H:ADC:: 1:1

Number of A/D Converters:: 1

Architecture:: -

Reference Type:: External

Voltage - Supply, Analog:: 3V ~ 3.6V

Voltage - Supply, Digital:: 1.65V ~ 1.95V

Features:: -

Operating Temperature:: -40°C ~ 85°C

Supplier Device Package:: 48-HTQFP (7x7)

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

ADC0808S250HW/C1:5 FAQ

1.How can I place an order for ADC0808S250HW/C1:5 through Aetrix?

Please submit a Request for Quotation (RFQ) for ADC0808S250HW/C1:5 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for ADC0808S250HW/C1:5 reliable?

The price and inventory of ADC0808S250HW/C1:5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC0808S250HW/C1:5 is usually 5 days.

3.What payment methods are accepted for ADC0808S250HW/C1:5?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC0808S250HW/C1:5 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADC0808S250HW/C1:5?

ADC0808S250HW/C1:5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADC0808S250HW/C1:5 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for ADC0808S250HW/C1:5?

For technical support, including ADC0808S250HW/C1:5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC0808S250HW/C1:5 requirements.

6.How does Aetrix verify that ADC0808S250HW/C1:5 is sourced from the original manufacturer or authorized distributors?

All ADC0808S250HW/C1:5 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADC0808S250HW/C1:5 meets industry standards.

7.What is the process for return or replacement of ADC0808S250HW/C1:5?

All ADC0808S250HW/C1:5 units undergo pre-shipment inspection (PSI). If there is an issue with ADC0808S250HW/C1:5, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The ADC0808S250HW/C1:5 part is unused and in its original packaging.

Return procedure for ADC0808S250HW/C1:5:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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