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Analog Devices Inc. AD9627ABCPZ-125
- Part No.:
- AD9627ABCPZ-125
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 64-VFQFN Exposed Pad, CSP
- Datasheet:
-
AD9627ABCPZ-125.pdf
- Description:
- IC ADC 12BIT PIPELINED 64LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,950
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Product details
Overview
AD9627ABCPZ-125 from Analog Devices is a dual-channel, 12-bit, 125 MSPS analog-to-digital converter optimized for IF sampling in communications receivers. It operates from a single 1.8 V analog supply, supports differential analog inputs up to 450 MHz, delivers 69.4 dBc SNR and 85 dBc SFDR at 70 MHz input, and integrates fast detect, signal monitor, and clock duty cycle stabilization for AGC implementation in diversity radio and multimode baseband systems.
For engineers reviewing the AD9627ABCPZ-125 datasheet, AD9627ABCPZ-125 pinout, AD9627ABCPZ-125 application, or AD9627ABCPZ-125 equivalent, key selection considerations include its dual-channel 125 MSPS sampling rate, 650 MHz analog input bandwidth, 1.8 V CMOS/LVDS output flexibility, integrated voltage reference, and SPI-configurable fast detect and signal monitor blocks for real-time RF power management.
Technical Context
The AD9627ABCPZ-125 employs a multistage differential pipelined ADC architecture with integrated error correction logic per channel. Its analog front end features wide-bandwidth differential sample-and-hold amplifiers, 650 MHz input bandwidth, and programmable 1 Vp-p to 2 Vp-p input range referenced to an internal 1.0 V voltage reference.
Digital interface support includes configurable 1.8 V to 3.3 V CMOS or 1.8 V LVDS parallel outputs, integer 1-to-8 clock division, and a 3-wire SPI for register configuration. Channel synchronization, fast overrange detection (4-bit latency), and composite signal monitoring are implemented via dedicated hardware blocks with serial output capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Sampling Rate | 125 MSPS - fixed maximum conversion rate for both channels, enabling direct IF sampling of WCDMA and LTE signals up to 450 MHz. |
| Resolution | 12 bits - provides 72 dB theoretical SNR ceiling and supports ENOB ≥11.4 bits at 70 MHz input frequency. |
| SNR / SFDR | 69.4 dBc / 85 dBc @ 70 MHz - measured performance defines usable dynamic range for high-fidelity demodulation in GSM/EDGE/WiMAX receivers. |
| Analog Input Bandwidth | 650 MHz - supports wideband IF sampling without external anti-alias filtering up to Nyquist (62.5 MHz) and beyond into second Nyquist zone. |
| Power Consumption | 750 mW @ 125 MSPS - total system power at full rate with 3.3 V CMOS outputs, enabling thermal design for compact radio modules. |
| Supply Voltages | 1.8 V AVDD/DVDD + 1.8–3.3 V DRVDD - decoupled analog/digital/output supplies allow mixed-voltage system integration and noise isolation. |
| Input Range Flexibility | 1 Vp-p to 2 Vp-p differential - accommodates varying signal chain gain settings without external attenuation or amplification. |
| Crosstalk | −95 dB - ensures independent channel operation in I/Q demodulation and smart antenna applications with minimal inter-channel interference. |
Pinout & Package
The AD9627ABCPZ-125 is housed in a 64-lead LFCSP (Lead Frame Chip Scale Package) with exposed paddle, measuring 9 mm × 9 mm × 0.85 mm, rated for −40°C to +85°C industrial operation. Pin functions are defined for CMOS output configuration; LVDS mode uses alternate pin naming per Figure 7 of Rev. B datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN+A / VIN–A VIN+B / VIN–B |
Differential analog inputs (Channel A/B) | High-impedance, 650 MHz bandwidth inputs accepting 1–2 Vp-p differential signals; require matched PCB routing and 100 Ω termination. |
| CLK+ / CLK− | Differential clock input | Accepts CMOS/LVDS/LVPECL clocks up to 625 MHz; internal bias enables single-ended drive; duty cycle stabilizer corrects skew-induced jitter. |
| D0A–D11A / D0B–D11B | 12-bit parallel data outputs (Channel A/B) | CMOS or LVDS outputs configurable via DRVDD; timing-critical paths requiring controlled impedance and length matching. |
| DCOA / DCOB | Data clock output (Channel A/B) | Source-synchronous output strobes aligned to data edges; used for timing capture in FPGA/ASIC interfaces. |
| SYNC | Multi-chip synchronization input | Enables deterministic phase alignment across multiple AD9627 devices in MIMO or array receiver systems. |
| CSB / SCLK / SDIO | SPI serial interface | 3-wire interface for configuring fast detect thresholds, signal monitor modes, power-down, and data formatting (offset binary/twos complement). |
| FD(0:3)A / FD(0:3)B | Fast detect magnitude outputs | 4-bit parallel outputs indicating instantaneous input level per channel with <10 ns latency-critical for AGC loop response. |
| AGND / DGND / DRGND | Analog/digital/output ground planes | Separate ground pins mandate split-plane PCB layout with single-point connection under exposed paddle to minimize noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-channel 125 MSPS sampling | Enables simultaneous I/Q digitization at IF frequencies up to 450 MHz without undersampling artifacts or aliasing in second Nyquist zone. |
| Integrated signal monitor block | Provides RMS, peak, or threshold-crossing magnitude measurement of composite input signal with dedicated serial output-reducing host processor load in software-defined radios. |
| Programmable fast detect (4-bit) | Delivers sub-10 ns latency overrange indication per channel, allowing rapid gain reduction before ADC saturation in burst-mode wireless protocols. |
| Internal 1.0 V voltage reference | Eliminates need for external precision reference and associated decoupling, simplifying layout and improving temperature stability (±16 mV max error). |
| Integer 1-to-8 clock divider | Allows use of lower-frequency, lower-jitter master clocks while maintaining precise 125 MSPS sampling-improving system-level jitter budget and EMI performance. |
| 95 dB channel isolation | Ensures accurate I/Q balance in zero-IF architectures and prevents crosstalk-induced image rejection degradation in diversity receivers. |
Applications
| Communications Receiver | Diversity Radio System |
|---|---|
|
Use Scenario: Dual-channel IF sampling in 3G/4G base station transceivers with separate I/Q paths and real-time AGC. IC Role / Device Role / Timing Role: Primary ADC capturing 70–140 MHz IF signals with synchronized dual-channel output and low-latency fast detect for gain control. Use Value: 69.4 dBc SNR and 85 dBc SFDR preserve modulation accuracy for 64-QAM and higher-order constellations; 125 MSPS rate supports 2× oversampling of 60 MHz LTE channels. |
Use Scenario: Multi-antenna receiver using spatial diversity to mitigate fading in WiMAX or TD-SCDMA infrastructure. IC Role / Device Role / Timing Role: Dual ADC providing phase-coherent digitization of two independent RF paths with SYNC pin alignment. Use Value: −95 dB crosstalk ensures independent signal processing; 12-bit resolution maintains EVM integrity across diverse channel conditions without calibration overhead. |
| Smart Antenna System | Software-Defined Radio (SDR) |
|
Use Scenario: Beamforming engine requiring synchronized sampling across 4–8 antenna elements with real-time magnitude feedback. IC Role / Device Role / Timing Role: ADC supplying time-aligned I/Q data and fast detect bits to FPGA-based beamformer for adaptive weight calculation. Use Value: Fast detect latency <10 ns enables sub-microsecond AGC response; SYNC pin allows deterministic multi-device timing alignment across distributed front ends. |
Use Scenario: Reconfigurable radio platform supporting GSM, WCDMA, and LTE waveforms via FPGA-based digital frontend. IC Role / Device Role / Timing Role: Flexible ADC with SPI-configurable data format, clock division, and signal monitor modes to adapt to varying waveform bandwidths. Use Value: 1.8 V to 3.3 V CMOS output compatibility eases interface to Xilinx Zynq or Intel Cyclone FPGA banks; built-in BIST supports runtime health checks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9627BCPZ-150 | Higher 150 MSPS sampling rate; 820 mW power at full rate; identical pinout and feature set. | Better suited for wider instantaneous bandwidths (e.g., 80 MHz LTE carriers) but requires tighter timing closure on FPGA interface. | Select when system demands >125 MSPS sampling; no PCB changes required due to pin compatibility. |
| AD9640BCPZ-125 | 14-bit resolution, same 125 MSPS rate; higher 73.5 dBc SNR but larger 80-lead LFCSP package and higher 1.1 W power. | Preferred for high-fidelity applications like radar or test equipment where ENOB >12 bits is mandatory. | Choose for improved dynamic range at cost of power, board area, and FPGA resource usage for wider data bus. |
Compared with AD9627ABCPZ-125, the AD9627BCPZ-150 offers higher throughput without architectural change, while the AD9640BCPZ-125 trades speed headroom for quantization fidelity-making the AD9627ABCPZ-125 optimal for cost- and power-constrained 3G/4G receiver designs requiring balanced SNR, latency, and integration density.
Availability
AD9627ABCPZ-125 is available at Aetrix Electronics and suitable for communications infrastructure, diversity radio systems, and software-defined radio platforms requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for AD9627ABCPZ-125 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, headquartered in Norwood, MA, with design centers worldwide and ISO 9001-certified manufacturing.
The AD9627 product line targets cost-sensitive, space-constrained communications receivers requiring dual-channel IF sampling, integrated AGC assist functions, and flexible digital interfacing-enabling rapid deployment in 3G/4G infrastructure and military/aerospace SDR systems.
FAQ
What is the maximum analog input frequency supported by the AD9627ABCPZ-125?
The AD9627ABCPZ-125 supports analog input frequencies up to 450 MHz, enabled by its 650 MHz analog input bandwidth and differential architecture. This allows direct sampling of IF signals in the second Nyquist zone (e.g., 300–450 MHz) without aliasing, provided proper anti-alias filtering and layout practices are followed per the datasheet's analog input guidelines.
Does the AD9627ABCPZ-125 support both CMOS and LVDS output interfaces simultaneously?
No, the AD9627ABCPZ-125 supports either CMOS or LVDS output mode-not both simultaneously. Output type is selected by the DRVDD supply voltage: 1.8 V to 3.3 V enables CMOS, while 1.8 V with appropriate termination configures LVDS. The pinout differs between modes, and switching requires corresponding PCB layout and FPGA I/O bank configuration changes.
How does the fast detect feature of the AD9627ABCPZ-125 reduce AGC loop latency?
The AD9627ABCPZ-125's fast detect outputs deliver 4-bit magnitude information per channel with <10 ns latency from analog input to FD pin assertion. This bypasses full data path processing, enabling immediate gain adjustment in external VGA or attenuator circuits-critical for burst-mode protocols like TD-SCDMA where overrange must be avoided within microseconds.
Can the AD9627ABCPZ-125 operate with an external voltage reference?
Yes, the AD9627ABCPZ-125 can use an external reference applied to the VREF pin, overriding the internal 1.0 V reference. When enabled, the internal reference is disabled, and the external source must meet specified noise, stability, and drive requirements (≤1.0 mA load, <10 μV rms noise). This option is used when system-level calibration or tighter reference tolerance is required.
What is the purpose of the SYNC pin on the AD9627ABCPZ-125?
The SYNC pin on the AD9627ABCPZ-125 enables deterministic multi-chip synchronization across multiple AD9627 devices. When asserted synchronously with the clock, it resets internal pipeline stages to align sampling phase across all chips-essential for coherent MIMO, phased-array, or multi-channel receiver systems where channel-to-channel timing skew must be minimized to <100 ps.
AD9627ABCPZ-125 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 64-VFQFN Exposed Pad, CSP
- Packaging:
- Tray
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 125M
- Number of Inputs:
- 2
- Input Type:
- Differential, Single Ended
- Data Interface:
- Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 2
- Architecture:
- Pipelined
- Reference Type:
- External, 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:
- 64-LFCSP-VQ (9x9)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD9627ABCPZ-125 FAQ
1.How can I place an order for AD9627ABCPZ-125 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9627ABCPZ-125 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 AD9627ABCPZ-125 reliable?
The price and inventory of AD9627ABCPZ-125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9627ABCPZ-125 is usually 5 days.
3.What payment methods are accepted for AD9627ABCPZ-125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9627ABCPZ-125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD9627ABCPZ-125?
AD9627ABCPZ-125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9627ABCPZ-125 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 AD9627ABCPZ-125?
For technical support, including AD9627ABCPZ-125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9627ABCPZ-125 requirements.
6.How does Aetrix verify that AD9627ABCPZ-125 is sourced from the original manufacturer or authorized distributors?
All AD9627ABCPZ-125 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 AD9627ABCPZ-125 meets industry standards.
7.What is the process for return or replacement of AD9627ABCPZ-125?
All AD9627ABCPZ-125 units undergo pre-shipment inspection (PSI). If there is an issue with AD9627ABCPZ-125, 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 AD9627ABCPZ-125 part is unused and in its original packaging.
Return procedure for AD9627ABCPZ-125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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