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Analog Devices Inc. AD9246BCPZ-105
- Part No.:
- AD9246BCPZ-105
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-VFQFN Exposed Pad, CSP
- Datasheet:
-
AD9246BCPZ-105.pdf
- Description:
- IC ADC 14BIT PIPELINED 48LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:3,126
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Product details
Overview
AD9246BCPZ-105 from Analog Devices is a 14-bit, 105 MSPS analog-to-digital converter operating from a single 1.8 V analog supply with 1.8 V to 3.3 V digital output driver support. It features a differential input bandwidth of 650 MHz, SNR of 71.7 dBc at 70 MHz input, SFDR of 85 dBc, and DNL of ±0.4 LSB. It is used in IF sampling for communications receivers and ultrasound equipment.
For engineers reviewing the AD9246BCPZ-105 datasheet, AD9246BCPZ-105 pinout, AD9246BCPZ-105 application, or AD9246BCPZ-105 equivalent, key selection considerations include its 105 MSPS sampling rate, 1.8 V analog supply requirement, differential clock interface (CMOS/LVDS/LVPECL), on-chip voltage reference, and industrial temperature range (−40°C to +85°C).
Technical Context
The AD9246BCPZ-105 employs a multistage differential pipeline architecture with output error correction logic to guarantee 14-bit accuracy and no missing codes across temperature. Its patented sample-and-hold amplifier supports input frequencies up to 225 MHz and flexible analog input ranges (1 Vp-p to 2 Vp-p).
A duty cycle stabilizer (DCS) maintains performance across wide clock duty cycle variations, and a standard SPI-compatible serial port enables configuration of data format (offset binary/Gray/twos complement), DCS enable, power-down, and reference mode - all while supporting 105 MSPS real-time conversion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit - guarantees monotonicity and no missing codes over full industrial temperature range. |
| Sampling Rate | 105 MSPS - supports Nyquist-sampled IF signals up to ~52.5 MHz or undersampled RF bands. |
| SNR / SFDR | 71.7 dBc / 85 dBc at 70 MHz input - enables high-fidelity digitization in CDMA-One and IMT-2000 baseband receivers. |
| Analog Input Bandwidth | 650 MHz - allows direct sampling of wideband IF stages without external amplification or filtering. |
| Power Consumption | 350 mW at 105 MSPS (DRVDD = 2.5 V) - balances performance and thermal management in portable medical and test equipment. |
| Differential Nonlinearity | ±0.4 LSB (typ, 25°C) - ensures minimal code-width variation critical for accurate spectral analysis in ultrasound beamforming. |
| Clock Interface | Differential CLK+/CLK− accepting CMOS/LVDS/LVPECL - simplifies integration with FPGA or ASIC clock trees and reduces jitter sensitivity. |
Pinout & Package
The AD9246BCPZ-105 is housed in a 48-lead LFCSP_VQ package (7 mm × 7 mm, 0.75 mm height) with exposed thermal pad (Pin 0) soldered to AGND for optimal thermal performance and signal integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| D0–D13 | Digital output data bus (LSB to MSB) | Parallel CMOS outputs compatible with 1.8 V–3.3 V logic; timing referenced to DCO for reliable capture. |
| CLK+, CLK− | Differential clock input | Accepts LVDS/LVPECL/CMOS; internal common-mode bias at 1.2 V enables robust clock distribution. |
| VIN+, VIN− | Differential analog input | 650 MHz bandwidth; supports 1–2 Vp-p input range with user-selectable common-mode level via CML pin. |
| REFT, REFB | Differential reference terminals | Interface with internal 1.0 V reference; allow external reference override when SENSE pin is configured. |
| SDIO/DCS, SCLK/DFS, CSB | 3-wire SPI interface | Configures data format, DCS enable, power-down, and reference mode; operates independently of conversion clock. |
| PDWN | Hardware power-down control | Reduces power to 1.8 mW; enables fast wake-up (<350 μs) for burst-mode acquisition in battery-powered instruments. |
| OEB | Output enable (active low) | Tri-states D0–D13 and DCO to prevent bus contention during multi-ADC synchronization or idle periods. |
| RBIAS | Bias resistor connection | Requires 10 kΩ to AGND to set internal bias current; critical for SHA linearity and noise performance. |
Key Features
| Feature | Design Value |
|---|---|
| Single 1.8 V analog supply | Eliminates dual-supply sequencing complexity and reduces board-level power regulation cost in space-constrained designs. |
| On-chip voltage reference | 1.0 V internal reference with ±20 mV error (full temp range) - removes need for external precision reference and associated decoupling. |
| Programmable clock/data alignment | Adjusts setup/hold timing margins via SPI register to compensate for PCB trace skew between clock and data paths. |
| Built-in test pattern generation | Enables system-level validation without external signal sources - supports checkerboard, ramp, and custom patterns for production testing. |
| Pin compatibility with AD9233 | Allows drop-in migration from 12-bit to 14-bit resolution in existing layouts, preserving layout investment and reducing redesign risk. |
Applications
| Ultrasound Beamforming | IF Sampling in CDMA Receivers |
|---|---|
Use Scenario: Digitizing 10–20 MHz echo return signals from phased-array transducers in portable ultrasound systems. IC Role / Device Role / Timing Role: High-speed ADC capturing time-aligned channel data for real-time beam synthesis and Doppler processing. Use Value: 71.7 dBc SNR at 70 MHz input preserves dynamic range for detecting low-amplitude tissue reflections amid electronic noise. | Use Scenario: Downconverting and digitizing 45–90 MHz IF signals in IS-95/CDMA-One base stations and repeaters. IC Role / Device Role / Timing Role: Direct IF sampling ADC interfacing with quadrature demodulators and digital downconverters (DDCs). Use Value: 85 dBc SFDR suppresses adjacent-channel interference and spurious mixing products in dense RF environments. |
| Battery-Powered Scopemeters | Low-Cost Digital Oscilloscopes |
Use Scenario: Real-time waveform capture in handheld scopemeters with >50 MHz analog bandwidth and ≥100 Mpts memory. IC Role / Device Role / Timing Role: Primary digitizer providing 105 MSPS sampling for 25+ MHz signal fidelity with low-latency pipeline (12 cycles). Use Value: 350 mW power at 105 MSPS enables extended battery life while maintaining 14-bit resolution for harmonic distortion analysis. | Use Scenario: Entry-level benchtop oscilloscopes targeting ≤100 MHz bandwidth and sub-$1,000 BOM cost. IC Role / Device Role / Timing Role: Cost-optimized ADC delivering 14-bit ENOB (11.6 bits at 70 MHz) without external reference or driver amplifiers. Use Value: Integrated SHA and reference reduce component count by ≥4 passive/active parts per channel versus discrete solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog-to-digital conversion applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9245BCPZ-105 | 14-bit, 105 MSPS, but uses 3.3 V analog supply (not 1.8 V); lacks on-chip reference and DCS. | Suitable for legacy 3.3 V systems where power efficiency and clock jitter tolerance are secondary. | Select only if existing 3.3 V analog rail eliminates need for LDO; verify external reference stability meets SNR requirements. |
| ADS5463IPFP | 13-bit, 500 MSPS, 3.3 V supply; higher speed but lower resolution and no integrated DCS or programmable data format. | Targets ultra-wideband radar or high-frequency spectrum analyzers requiring >200 MHz input bandwidth. | Choose when sampling rate >200 MSPS is mandatory and 13-bit ENOB suffices; expect higher power (1.2 W) and complex clocking. |
Compared with AD9245BCPZ-105, the AD9246BCPZ-105 delivers 1.8 V operation and integrated reference for lower system power and reduced BOM, while ADS5463IPFP trades resolution and ease-of-use for raw speed - making AD9246BCPZ-105 optimal for portable, medium-bandwidth instrumentation where accuracy and integration outweigh peak throughput.
Availability
AD9246BCPZ-105 is available at Aetrix Electronics and suitable for ultrasound beamforming, IF sampling in CDMA receivers, and battery-powered scopemeters requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for AD9246BCPZ-105 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.
The AD9246 product line targets high-speed data acquisition in communications, medical imaging, and test equipment - designed to replace discrete ADC + reference + driver solutions with a single monolithic IC that maintains 14-bit accuracy at 80–125 MSPS.
FAQ
What is the maximum analog input frequency supported by the AD9246BCPZ-105?
The AD9246BCPZ-105 has an analog input bandwidth of 650 MHz, enabling it to accurately digitize signals up to at least 225 MHz while maintaining specified SNR and SFDR performance. This bandwidth supports undersampling architectures for RF and IF applications, including CDMA-One and IMT-2000 receiver front ends where the AD9246BCPZ-105 captures signals beyond the first Nyquist zone.
Does the AD9246BCPZ-105 require an external reference voltage?
No - the AD9246BCPZ-105 integrates a precision 1.0 V voltage reference with ±20 mV output error over temperature. External reference use is optional and enabled only when the SENSE pin is configured accordingly; default operation relies entirely on the internal reference, simplifying design and reducing component count.
How does the duty cycle stabilizer (DCS) improve system robustness in the AD9246BCPZ-105?
The DCS in the AD9246BCPZ-105 actively corrects clock duty cycle variations from 30% to 70%, maintaining SNR and SFDR within specification even with asymmetric clocks from PLLs or FPGAs. This eliminates the need for external duty cycle correction circuits and ensures consistent ADC performance without layout- or temperature-dependent clock conditioning.
What digital output formats does the AD9246BCPZ-105 support, and how are they selected?
The AD9246BCPZ-105 supports offset binary, Gray code, and twos complement formats, selected via SPI register configuration (register 0x08, bit D3). Format choice affects downstream logic complexity: Gray coding minimizes metastability during clock domain crossing, while offset binary simplifies DC coupling in baseband processing chains using the AD9246BCPZ-105.
Is the AD9246BCPZ-105 pin-compatible with other members of the AD9246 family?
Yes - all AD9246 speed grades (AD9246BCPZ-80, AD9246BCPZ-105, AD9246BCPZ-125) share identical pinout, package (48-lead LFCSP_VQ), and footprint. This allows hardware reuse across performance tiers; only clock frequency and power delivery must be validated for the target speed grade when migrating to or from the AD9246BCPZ-105.
AD9246BCPZ-105 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 48-VFQFN Exposed Pad, CSP
- Packaging:
- Tray
- Product Status:
- Active
- Number of Bits:
- 14
- Sampling Rate (Per Second):
- 105M
- Number of Inputs:
- 1
- Input Type:
- Differential, Single Ended
- Data Interface:
- Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- Pipelined
- Reference Type:
- Internal
- Voltage - Supply, Analog:
- 1.7V ~ 1.9V
- Voltage - Supply, Digital:
- 1.7V ~ 3.6V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 48-LFCSP-VQ (7x7)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD9246BCPZ-105 FAQ
1.How can I place an order for AD9246BCPZ-105 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9246BCPZ-105 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 AD9246BCPZ-105 reliable?
The price and inventory of AD9246BCPZ-105 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9246BCPZ-105 is usually 5 days.
3.What payment methods are accepted for AD9246BCPZ-105?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9246BCPZ-105 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD9246BCPZ-105?
AD9246BCPZ-105 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9246BCPZ-105 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 AD9246BCPZ-105?
For technical support, including AD9246BCPZ-105 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9246BCPZ-105 requirements.
6.How does Aetrix verify that AD9246BCPZ-105 is sourced from the original manufacturer or authorized distributors?
All AD9246BCPZ-105 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 AD9246BCPZ-105 meets industry standards.
7.What is the process for return or replacement of AD9246BCPZ-105?
All AD9246BCPZ-105 units undergo pre-shipment inspection (PSI). If there is an issue with AD9246BCPZ-105, 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 AD9246BCPZ-105 part is unused and in its original packaging.
Return procedure for AD9246BCPZ-105:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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