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Analog Devices Inc. AD9648TCPZ-125-EP
- Part No.:
- AD9648TCPZ-125-EP
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 64-WFQFN Exposed Pad, CSP
- Datasheet:
-
AD9648TCPZ-125-EP.pdf
- Description:
- IC ADC 14BIT PIPELINED 64LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:3,564
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Product details
Overview
AD9648TCPZ-125-EP from Analog Devices is a dual-channel, 14-bit, 125 MSPS analog-to-digital converter (ADC) operating from a single 1.8 V analog supply, featuring 650 MHz analog input bandwidth, 74.5 dBFS SNR at 70 MHz, and on-chip voltage reference - deployed in radar/LIDAR front-ends and multimode digital receivers requiring high dynamic range at extended temperature.
For engineers reviewing the AD9648TCPZ-125-EP datasheet, AD9648TCPZ-125-EP pinout, AD9648TCPZ-125-EP application, or AD9648TCPZ-125-EP equivalent, key selection considerations include guaranteed no-missing-codes over −55°C to +125°C, LVDS/CMOS output flexibility, integer 1-to-8 clock division, and deterministic digital test pattern generation for production validation.
Technical Context
The AD9648TCPZ-125-EP employs a multistage differential pipeline architecture with output error correction logic to deliver 14-bit accuracy at full 125 MSPS sampling rate while ensuring no missing codes across its military temperature range. Its sample-and-hold circuit supports IF sampling up to 200 MHz with 2 V p-p differential input span and 5 pF input capacitance.
Dual independent ADC cores share a common 1.8 V AVDD supply but support separate DRVDD for output driver level selection (1.8 V CMOS or LVDS), with programmable clock/data alignment, duty cycle stabilizer (DCS), and SPI-configurable data formatting (offset binary, Gray, or twos complement).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit - guarantees monotonicity and ≥16,384 distinct output codes per channel. |
| Sampling Rate | 125 MSPS - enables real-time digitization of IF signals up to 200 MHz via undersampling. |
| SNR @ 70 MHz | 74.5 dBFS - delivers >12.2 ENOB for high-fidelity signal capture in communications receivers. |
| Input Bandwidth | 650 MHz - supports wideband antenna array inputs without external amplification roll-off. |
| Power Consumption | 106 mW/channel at 125 MSPS - enables dual-channel digitization in power-constrained defense electronics. |
| Operating Temperature | −55°C to +125°C - qualified per AQEC standard for aerospace and defense platform deployment. |
| Analog Supply | 1.8 V AVDD - simplifies system power architecture by eliminating multiple rail converters. |
Pinout & Package
AD9648TCPZ-125-EP is housed in a 64-lead, 9 mm × 9 mm RoHS-compliant LFCSP package with exposed thermal pad (AGND) requiring solder connection to PCB ground plane for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN+A / VIN−A VIN+B / VIN−B |
Differential analog inputs (Ch A & Ch B) | Accept 2 V p-p differential signals; 7.5 kΩ input resistance and 5 pF capacitance define anti-alias filter design constraints. |
| CLK+ / CLK− | Differential conversion clock input | Supports CMOS/LVDS/LVPECL; aperture jitter ≤0.137 ps rms ensures timing stability at 125 MSPS. |
| D0A–D13A / D0B–D13B (CMOS mode) |
Parallel digital outputs (14-bit, LSB to MSB) | 1.8 V CMOS-compatible; 16-cycle pipeline latency enables deterministic timing in FPGA-based capture systems. |
| DCOA / DCOB | Data clock outputs (per channel) | Programmable phase alignment relative to data edges; critical for setup/hold compliance in high-speed latch interfaces. |
| SCLK/DFS, SDIO/DCS, CSB | SPI serial interface control | Configures clock divider, DCS enable, output format, and test pattern generation without external logic. |
| PDWN / OEB | Power-down and output enable | Hardware-controlled low-power states: 2.0 mW power-down mode and 120 mW standby with fast wake-up (350 µs / 250 ns). |
Key Features
| Feature | Design Value |
|---|---|
| On-chip voltage reference | 1.0 V ±2% output with 2 mV load regulation - eliminates external reference IC and reduces BOM count in compact RF modules. |
| Integer 1-to-8 clock divider | Reduces need for ultra-high-frequency clock sources; enables use of 15.625 MHz–1 GHz input clocks while maintaining 125 MSPS sampling. |
| Built-in digital test patterns | Deterministic, pseudorandom, and user-defined patterns accessible via SPI - accelerates production test coverage without external pattern generators. |
| Programmable clock/data alignment | Adjusts DCO edge timing relative to data valid window - resolves board-level skew in high-density interconnects without FPGA logic compensation. |
| Duty cycle stabilizer (DCS) | Compensates for >40% clock duty cycle variation while preserving SNR/SFDR - relaxes clock source requirements in harsh EMI environments. |
Applications
| Radar/LIDAR Front-End Digitization | Smart Antenna Array Receiver |
|---|---|
Use Scenario: Digitizing IF outputs from quadrature downconverters in pulsed Doppler radar systems operating at X-band (8–12 GHz) with 100+ MHz instantaneous bandwidth. IC Role / Device Role / Timing Role: Dual-channel simultaneous sampling ADC capturing I/Q baseband streams with matched gain/phase response and <±0.8% full-scale gain error. Use Value: 74.5 dBFS SNR and 91 dBc SFDR at 70 MHz enable detection of weak targets amid strong clutter without analog predistortion. |
Use Scenario: Coherent beamforming in multi-element phased array base stations using distributed ADCs synchronized via SYNC pin. IC Role / Device Role / Timing Role: Synchronized dual ADC providing time-aligned I/Q samples across antenna elements; integer clock division enables precise inter-channel skew control. Use Value: Guaranteed no-missing-codes and ±0.5 LSB DNL over −55°C to +125°C ensure consistent beam null depth across environmental extremes. |
| Defense Communications Transceiver | Portable Ultrasound Beamformer |
Use Scenario: Wideband multimode receiver supporting LTE, W-CDMA, and TD-SCDMA waveforms in manpack radios with SWaP-C constraints. IC Role / Device Role / Timing Role: High-dynamic-range ADC enabling direct IF sampling of 20 MHz carriers; LVDS outputs reduce EMI in dense RF subsystems. Use Value: 106 mW/channel power and 650 MHz input bandwidth allow integration of dual ADCs into 64 mm² footprint without forced air cooling. |
Use Scenario: Real-time RF data acquisition in handheld ultrasound probes digitizing 5–15 MHz transducer echoes with 12+ bit effective resolution. IC Role / Device Role / Timing Role: Low-noise ADC with 0.98 LSB rms input-referred noise and 2 V p-p input span optimized for high-gain LNA interfaces. Use Value: On-chip 1.0 V reference and integrated SENSE/VREF control eliminate calibration drift during battery-powered operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, 14-bit ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9643BCPZ-125 | Commercial-grade (−40°C to +85°C); identical 14-bit/125 MSPS spec but lacks AQEC qualification and extended temp support. | Not suitable for aerospace/defense platforms requiring −55°C startup or 125°C sustained operation. | Select AD9643BCPZ-125 only for cost-sensitive terrestrial infrastructure where military temp range is unnecessary. |
| AD9653BCPZ-125 | 16-bit resolution, same 125 MSPS rate, wider 1.25 V p-p input span, higher 223 mW/channel power, and commercial temp grade. | Used when ENOB >13 bits required at lower frequencies (<30 MHz); unsuitable for SWaP-constrained defense designs. | Choose AD9653BCPZ-125 when quantization noise floor dominates system performance, not thermal or power envelope. |
Compared with AD9643BCPZ-125 and AD9653BCPZ-125, the AD9648TCPZ-125-EP uniquely combines military temperature qualification, 14-bit precision at 125 MSPS, and sub-110 mW/channel power - making it the only drop-in solution for space-constrained, high-reliability defense electronics requiring guaranteed performance across extreme ambient conditions.
Availability
AD9648TCPZ-125-EP is available at Aetrix Electronics and suitable for radar/LIDAR front-ends, smart antenna systems, and defense communications transceivers requiring stable component supply under extended temperature and long-term obsolescence management.
Supply support for AD9648TCPZ-125-EP 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, serving precision instrumentation, industrial automation, and defense markets since 1965.
The AD9648-EP product line delivers radiation-tolerant, extended-temperature ADCs designed specifically for mission-critical aerospace and defense electronics where reliability, longevity, and guaranteed parametric performance supersede commercial cost targets.
FAQ
What is the guaranteed operating temperature range for the AD9648TCPZ-125-EP?
The AD9648TCPZ-125-EP is specified over −55°C to +125°C ambient temperature and qualified per AQEC standards for defense and aerospace applications. This extended range is enforced by controlled manufacturing baseline and qualification data available upon request - unlike commercial variants such as AD9643BCPZ-125, which operate only from −40°C to +85°C.
Does the AD9648TCPZ-125-EP support both CMOS and LVDS digital outputs?
Yes, the AD9648TCPZ-125-EP supports 1.8 V CMOS and LVDS output logic levels via separate DRVDD supply and SPI-configurable mode selection. In LVDS mode, it delivers ANSI-compliant differential output voltage (290–400 mV) and offset (1.15–1.35 V), while CMOS mode provides 1.75 V high-level output at 0.5 mA sink current - enabling direct interfacing with Xilinx Kintex or Intel Stratix FPGA I/O banks.
How does the duty cycle stabilizer (DCS) function in the AD9648TCPZ-125-EP?
The DCS in the AD9648TCPZ-125-EP actively corrects clock duty cycle deviations without degrading SNR or SFDR performance. When enabled, it maintains <0.137 ps rms aperture jitter even with input clock duty cycles ranging from 30% to 70%, allowing use of low-cost crystal oscillators or PLLs without external duty cycle correction circuitry - a critical advantage in EMI-prone defense platforms.
What is the pipeline latency of the AD9648TCPZ-125-EP in CMOS versus LVDS output modes?
The AD9648TCPZ-125-EP exhibits 16 clock cycles of pipeline latency in CMOS output mode and 16/16.5 cycles in LVDS mode (Channel A/Channel B). This deterministic latency enables precise timestamp alignment in synchronized multi-ADC systems - essential for coherent beamforming and TDOA-based radar localization where sub-nanosecond channel matching is required.
Can the AD9648TCPZ-125-EP generate internal test patterns without external stimulus?
Yes, the AD9648TCPZ-125-EP integrates deterministic, pseudorandom, and user-defined digital test pattern generation accessible via its SPI interface. These patterns - including ramp, checkerboard, and custom 14-bit sequences loaded through registers - eliminate dependency on external AWGs during production testing and field diagnostics, reducing test setup complexity and cycle time for defense electronics manufacturers.
AD9648TCPZ-125-EP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 64-WFQFN Exposed Pad, CSP
- Packaging:
- Tray
- Product Status:
- Active
- Number of Bits:
- 14
- Sampling Rate (Per Second):
- 125M
- Number of Inputs:
- 2
- Input Type:
- Differential
- Data Interface:
- LVDS - Parallel, 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:
- -55°C ~ 125°C
- Supplier Device Package:
- 64-LFCSP (9x9)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD9648TCPZ-125-EP FAQ
1.How can I place an order for AD9648TCPZ-125-EP through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9648TCPZ-125-EP 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 AD9648TCPZ-125-EP reliable?
The price and inventory of AD9648TCPZ-125-EP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9648TCPZ-125-EP is usually 5 days.
3.What payment methods are accepted for AD9648TCPZ-125-EP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9648TCPZ-125-EP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD9648TCPZ-125-EP?
AD9648TCPZ-125-EP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9648TCPZ-125-EP 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 AD9648TCPZ-125-EP?
For technical support, including AD9648TCPZ-125-EP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9648TCPZ-125-EP requirements.
6.How does Aetrix verify that AD9648TCPZ-125-EP is sourced from the original manufacturer or authorized distributors?
All AD9648TCPZ-125-EP 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 AD9648TCPZ-125-EP meets industry standards.
7.What is the process for return or replacement of AD9648TCPZ-125-EP?
All AD9648TCPZ-125-EP units undergo pre-shipment inspection (PSI). If there is an issue with AD9648TCPZ-125-EP, 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 AD9648TCPZ-125-EP part is unused and in its original packaging.
Return procedure for AD9648TCPZ-125-EP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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