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Analog Devices Inc. AD9645BCPZRL7-80
- Part No.:
- AD9645BCPZRL7-80
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 32-WFQFN Exposed Pad, CSP
- Datasheet:
-
AD9645BCPZRL7-80.pdf
- Description:
- IC ADC 14BIT PIPELINED 32LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:2,223
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Product details
Overview
AD9645BCPZRL7-80 from Analog Devices is a dual, 14-bit, 80 MSPS analog-to-digital converter with serial LVDS output, 1.8 V supply operation, 650 MHz full-power analog bandwidth, and AEC-Q100 qualification for automotive use. It performs simultaneous sampling on two independent channels for I/Q demodulation in wireless receivers.
For engineers reviewing the AD9645BCPZRL7-80 datasheet, AD9645BCPZRL7-80 pinout, AD9645BCPZRL7-80 application, or AD9645BCPZRL7-80 equivalent, this page delivers verified specifications including SNR = 74.5 dBFS (fIN = 70 MHz), DNL = ±0.65 LSB (typ), INL = ±1.5 LSB (typ), programmable output alignment, and dual-channel power-down modes - all critical for high-density RF front-end design.
Technical Context
The AD9645BCPZRL7-80 implements a multistage pipelined ADC architecture with digital correction logic delivering 14-bit resolution at 80 MSPS. Each stage includes low-resolution flash ADCs with overlap to correct prior-stage errors, and sampling occurs on the rising edge of the clock input.
It supports dual-mode LVDS output: ANSI-644-compliant (345 mV typical VOD) and low-power reduced-range (200 mV typical VOD). Clock division, programmable output resolution (12/14/16-bit), and SPI-configurable data alignment (DCO/FCO phase) are implemented in hardware with register-controlled flexibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit - guarantees monotonicity and no missing codes across full temperature range. |
| Sample Rate | 80 MSPS - fixed maximum conversion rate for AD9645BCPZRL7-80 variant; enables real-time digitization of IF signals up to 650 MHz bandwidth. |
| SNR / SFDR | 74.5 dBFS / 91 dBc at 70 MHz - measured with −1.0 dBFS sine input; determines dynamic range for LTE/W-CDMA signal capture. |
| Analog Input Range | 2 V p-p differential - sets full-scale input swing without external scaling; compatible with transformer-coupled or balun-based RF interfaces. |
| Power Consumption | 187 mW (two channels, sine input, ANSI-644 mode) - enables battery-powered handheld scopes and portable ultrasound systems. |
| Supply Voltage | 1.8 V AVDD/DRVDD - single-supply operation reduces board-level power regulation complexity and improves PSRR (42 dB on AVDD). |
| Aperture Jitter | 174 fs rms - limits SNR degradation at high input frequencies; critical for >100 MHz IF sampling accuracy. |
Pinout & Package
AD9645BCPZRL7-80 is housed in a RoHS-compliant, 32-lead LFCSP (5 mm × 5 mm, 0.5 mm pitch) with exposed paddle soldered to AGND for thermal and noise performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AGND (Exposed Pad) | Analog Ground Reference | Only ground connection; must be soldered to PCB analog ground plane for thermal dissipation, noise immunity, and mechanical reliability. |
| CLK+, CLK− | Differential Clock Input | Accepts LVPECL/LVDS/CMOS; 10–1000 MHz range; defines sampling instant on rising edge; 15 kΩ differential input resistance. |
| VINA+, VINA− / VINB+, VINB− | Differential Analog Inputs (Ch A/B) | 650 MHz full-power bandwidth; 2 V p-p input range; 0.9 V common-mode voltage; 5.2 kΩ differential impedance. |
| D0A±, D1A± / D0B±, D1B± | LVDS Serial Data Outputs (Ch A/B) | Two-lane DDR LVDS per channel; supports ANSI-644 (345 mV VOD) or low-power mode (200 mV VOD); twos complement coding default. |
| DCO+, DCO− / FCO+, FCO− | Data & Frame Clock Outputs | DCO runs at fSAMPLE/16; FCO toggles per byte; both support DDR timing; used for synchronous capture in FPGA receivers. |
| SDIO/PDWN | SPI Data I/O or Power-Down Control | Bidirectional SPI interface with 30 kΩ internal pull-down; static PDWN assertion disables entire chip to <2 mW. |
| SCLK/DFS | SPI Clock or Data Format Select | 30 kΩ internal pull-down; DFS high selects twos complement; DFS low selects offset binary output format. |
| CSB | SPI Chip Select | Active-low enable with 15 kΩ internal pull-up; required for SPI register access and configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Serial LVDS Output Interface | Reduces pin count by >50% vs parallel interface; supports DDR timing at up to 500 MHz DCO for compact FPGA interfacing. |
| Programmable Output Alignment | Adjusts DCO/FCO phase relative to data edges via SPI registers (0x16, 0x21), eliminating board-level timing margining in high-speed layouts. |
| Individual Channel Power-Down | Enables dynamic power scaling: one channel active at 122 mW while other disabled, extending battery life in portable instruments. |
| Built-in Digital Test Patterns | Generates deterministic, pseudo-random, and custom user-defined patterns via SPI-enabling system-level ADC validation without external signal sources. |
| AEC-Q100 Qualified | Rated for −40°C to +105°C ambient operation; qualified per automotive stress test standards, enabling deployment in radar/LIDAR ECUs. |
Applications
| Communications Receiver | I/Q Demodulation System |
|---|---|
Use Scenario: Multimode baseband digitization in small-cell BTS supporting LTE and W-CDMA. IC Role / Device Role / Timing Role: Dual-channel simultaneous sampling ADC capturing in-phase and quadrature IF signals at 70 MHz center frequency. Use Value: 74.5 dBFS SNR ensures >12-bit ENOB for accurate constellation recovery; 80 MSPS sample rate satisfies Nyquist for 30 MHz LTE channel bandwidth. |
Use Scenario: Direct-conversion receiver in diversity radio with antenna switching. IC Role / Device Role / Timing Role: Synchronized dual ADC providing time-aligned I and Q samples for complex baseband processing. Use Value: <1 ps inter-channel skew (<50 ps data-to-data skew) preserves phase coherence; 91 dBc SFDR suppresses adjacent-channel interference. |
| Portable Ultrasound Imaging | Automotive Radar Signal Acquisition |
Use Scenario: Handheld ultrasound probe digitizing 5–15 MHz echo return signals. IC Role / Device Role / Timing Role: Low-power dual ADC converting analog beamformed RF echoes into digital streams for FPGA beamforming. Use Value: 187 mW total power enables battery operation; 650 MHz analog bandwidth supports wideband pulse-echo fidelity. |
Use Scenario: 77 GHz radar ECU digitizing intermediate frequency outputs from mixer stages. IC Role / Device Role / Timing Role: Automotive-grade ADC sampling radar IF at 80 MSPS with AEC-Q100 compliance for under-hood deployment. Use Value: −40°C to +105°C operation ensures reliability in engine bay environments; 174 fs aperture jitter maintains range resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, 14-bit, serial-output ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9643BCPZRL7-80 | 12-bit resolution, identical 80 MSPS sample rate, same LFCSP-32 package and pinout. | Limited to applications requiring ≤72 dB SNR; lower cost where 12-bit ENOB suffices (e.g., basic spectrum monitoring). | Select when resolution headroom is not required and BOM cost optimization is prioritized over dynamic range. |
| AD9680BCPZRL7-500 | 14-bit, 500 MSPS, JESD204B output, larger 72-lead LFCSP package, higher power (1.4 W). | Targets wideband radar and EW systems needing >100 MHz instantaneous bandwidth; incompatible pinout and interface. | Choose only when >100 MSPS sample rate and JESD204B serialization are mandatory; not a drop-in replacement. |
Compared with AD9645BCPZRL7-80, AD9643BCPZRL7-80 trades 2 bits of resolution for lower cost and power, while AD9680BCPZRL7-500 provides 6× higher sample rate at significantly increased power and interface complexity - making AD9645BCPZRL7-80 optimal for mid-bandwidth, thermally constrained, automotive-qualified applications.
Availability
AD9645BCPZRL7-80 is available at Aetrix Electronics and suitable for communications infrastructure, portable medical imaging, and automotive radar applications requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.
Supply support for AD9645BCPZRL7-80 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
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, founded in 1965 and headquartered in Wilmington, MA.
The AD9645 belongs to Analog Devices' high-speed data converter product line, designed specifically for RF-sampling and IF-digitization in space-constrained, low-power, and automotive-grade systems requiring precision timing and robust serial interfaces.
FAQ
What is the maximum analog input frequency supported by the AD9645BCPZRL7-80?
The AD9645BCPZRL7-80 features a 650 MHz full-power analog bandwidth, meaning it maintains specified SNR/SFDR performance for differential sinusoidal inputs up to 650 MHz. This allows direct sampling of IF signals in GSM, LTE, and radar applications without external bandpass filtering or downconversion.
Does the AD9645BCPZRL7-80 support both twos complement and offset binary output formats?
Yes, the AD9645BCPZRL7-80 supports both output formats. Twos complement is the default; offset binary is selected by pulling the SCLK/DFS pin low (with 30 kΩ internal pull-down). This configuration is static and does not require SPI interaction, simplifying boot-time interface setup.
How does the AD9645BCPZRL7-80 achieve low power consumption in portable applications?
The AD9645BCPZRL7-80 consumes only 187 mW at full operation (two channels, sine input, ANSI-644 LVDS mode) and drops to <2 mW in full power-down mode. Its scalable power options include individual channel shutdown, standby mode (92 mW), and reduced-range LVDS output - all configurable via SPI or hardware pins.
Is the AD9645BCPZRL7-80 pin-compatible with other devices in the AD96xx family?
Yes, the AD9645BCPZRL7-80 shares the same 32-lead LFCSP package and pinout with the AD9635 (12-bit dual ADC), enabling migration paths in existing PCB designs. However, register maps and feature sets differ - firmware and layout reuse requires verification of SPI configuration and timing constraints.
What clocking options does the AD9645BCPZRL7-80 support for system integration?
The AD9645BCPZRL7-80 accepts LVPECL, LVDS, or 1.8 V CMOS differential clock inputs (CLK+/CLK−) from 10 MHz to 1000 MHz. It includes an on-chip clock divider and generates synchronized DCO and FCO outputs for FPGA capture, eliminating need for external clock buffers or delay-matching circuits.
AD9645BCPZRL7-80 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 32-WFQFN Exposed Pad, CSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 14
- Sampling Rate (Per Second):
- 80M
- Number of Inputs:
- 2
- Input Type:
- Differential
- Data Interface:
- LVDS - Serial
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 2
- Architecture:
- Pipelined
- Reference Type:
- Internal
- Voltage - Supply, Analog:
- 1.7V ~ 1.9V
- Voltage - Supply, Digital:
- 1.7V ~ 1.9V
- Features:
- Simultaneous Sampling
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 32-LFCSP (5x5)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD9645BCPZRL7-80 FAQ
1.How can I place an order for AD9645BCPZRL7-80 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9645BCPZRL7-80 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 AD9645BCPZRL7-80 reliable?
The price and inventory of AD9645BCPZRL7-80 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9645BCPZRL7-80 is usually 5 days.
3.What payment methods are accepted for AD9645BCPZRL7-80?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9645BCPZRL7-80 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD9645BCPZRL7-80?
AD9645BCPZRL7-80 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9645BCPZRL7-80 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 AD9645BCPZRL7-80?
For technical support, including AD9645BCPZRL7-80 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9645BCPZRL7-80 requirements.
6.How does Aetrix verify that AD9645BCPZRL7-80 is sourced from the original manufacturer or authorized distributors?
All AD9645BCPZRL7-80 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 AD9645BCPZRL7-80 meets industry standards.
7.What is the process for return or replacement of AD9645BCPZRL7-80?
All AD9645BCPZRL7-80 units undergo pre-shipment inspection (PSI). If there is an issue with AD9645BCPZRL7-80, 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 AD9645BCPZRL7-80 part is unused and in its original packaging.
Return procedure for AD9645BCPZRL7-80:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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