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Analog Devices Inc. AD9245BCPZ-40
- Part No.:
- AD9245BCPZ-40
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 32-WFQFN Exposed Pad, CSP
- Datasheet:
-
AD9245BCPZ-40.pdf
- Description:
- IC ADC 14BIT PIPELINED 32LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:2,538
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Product details
Overview
AD9245BCPZ-40 from Analog Devices is a 14-bit, 40 MSPS monolithic analog-to-digital converter (ADC) with single 3 V supply operation, differential input (500 MHz bandwidth), on-chip reference, and sample-and-hold amplifier. It delivers 72.7 dBc SNR and 83.0 dBc SFDR at 32.5 MHz input, supporting IF sampling in communications receivers and medical ultrasound systems.
For engineers reviewing the AD9245BCPZ-40 datasheet, AD9245BCPZ-40 pinout, AD9245BCPZ-40 application, or AD9245BCPZ-40 equivalent, this page provides verified technical context, real-world timing behavior, confirmed power consumption (165 mW at 40 MSPS), exact pin functions, and validated alternative options for high-speed data acquisition design.
Technical Context
The AD9245BCPZ-40 uses a multistage differential pipelined architecture with output error correction logic to guarantee 14-bit accuracy and no missing codes across –40°C to +85°C. Its patented sample-and-hold amplifier supports both differential and single-ended inputs up to 100 MHz analog frequency.
A dedicated clock duty-cycle stabilizer (DCS) is disabled in the AD9245BCPZ-40 variant per datasheet Table 6 footnote - unlike the -65/-80 versions - and digital outputs operate at 2.5 V or 3.3 V via separate DRVDD supply. Pipeline latency is fixed at 7 clock cycles with 1.0 ns aperture delay and 0.5 ps rms jitter.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit - guarantees full-scale quantization with ≤1 LSB DNL and no missing codes over industrial temperature range. |
| Sample Rate | 40 MSPS - maximum conversion rate validated per Table 6; minimum usable rate is 1 MSPS. |
| SNR / SFDR | 72.7 dBc / 83.0 dBc at 32.5 MHz input - measured with 2 V p-p differential sine wave, –0.5 dBFS, internal 1.0 V reference. |
| Power Consumption | 165 mW at 40 MSPS - includes 100 mA analog supply current (IAVDD) and 5 mA digital driver current (IDRVDD). |
| Analog Input Bandwidth | 500 MHz - differential small-signal bandwidth enabling wideband IF sampling without external amplification. |
| Reference | On-chip 1.0 V or 0.5 V selectable reference - eliminates need for external precision voltage source in most applications. |
| Digital Interface | Parallel CMOS outputs (D0–D13, OTR) - configurable for offset binary or twos complement format via MODE pin. |
Pinout & Package
The AD9245BCPZ-40 is housed in a 32-lead LFCSP (Lead Frame Chip Scale Package) with exposed thermal pad, specified for –40°C to +85°C operation. The exposed paddle must be soldered to PCB ground plane to achieve θJA = 32.5°C/W and ensure thermal reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLK | Clock Input | Single-ended edge-triggered input controlling all conversion cycles; no DCS function enabled in this variant. |
| VIN+, VIN– | Differential Analog Input | High-bandwidth (500 MHz) input pair accepting 1 V p-p or 2 V p-p range; supports single-ended configuration via common-mode bias. |
| D0–D13 | Parallel Digital Output | 14-bit straight binary or twos complement data bus; output levels compatible with 2.5 V or 3.3 V logic families via DRVDD. |
| OTR | Out-of-Range Indicator | Active-high flag signaling overflow beyond selected input span; used with MSB to distinguish low/high saturation. |
| MODE | Data Format & DCS Control | Selects output coding (offset binary/twos complement) and disables DCS - consistent with AD9245BCPZ-40's non-stabilized clock interface. |
| SENSE, VREF, REFT, REFB | Reference Configuration | Enable internal reference (1.0 V or 0.5 V) or accept external differential reference; SENSE pin selects mode per Table 10. |
| AVDD, AGND, DRVDD, DGND | Power Supplies | Separate analog (3.0 V ±0.3 V) and digital driver (2.25–3.6 V) rails isolate noise-sensitive analog core from digital switching transients. |
Key Features
| Feature | Design Value |
|---|---|
| Single 3 V supply with independent DRVDD | Enables direct interfacing to 2.5 V or 3.3 V FPGAs/ASICs without level shifters while maintaining analog performance integrity. |
| No missing codes guaranteed | Ensures monotonicity and deterministic code mapping across full temperature range - critical for closed-loop control and medical imaging. |
| Flexible analog input range | Supports 1 V p-p or 2 V p-p differential spans via internal reference selection - simplifies front-end gain staging in multi-channel systems. |
| Low power at 40 MSPS | 165 mW total dissipation enables battery-powered portable instruments like hand-held scopemeters without thermal derating. |
| 7-cycle pipeline latency | Predictable, fixed delay allows precise timing alignment in synchronous digital signal processing chains using FPGA-based decimation filters. |
Applications
| IF Sampling Receiver | Medical Ultrasound Beamformer |
|---|---|
Use Scenario: Digitizing 70–150 MHz IF signals in WCDMA/CDMA-2000 base station receivers with undersampling architecture. IC Role / Device Role / Timing Role: High-SNR ADC capturing wide instantaneous bandwidth while rejecting adjacent channel interference via aliasing control. Use Value: 72.7 dBc SNR at 32.5 MHz and 83.0 dBc SFDR enable >12-bit ENOB for accurate demodulation of 64-QAM signals under multipath conditions. |
Use Scenario: Acquiring echo return signals from phased-array transducers operating at 2–15 MHz center frequencies. IC Role / Device Role / Timing Role: Channel ADC in multi-element receive beamformer, synchronized across 64+ channels via common CLK distribution. Use Value: 500 MHz analog input bandwidth preserves transient fidelity of short-duration ultrasound pulses; 14-bit resolution supports dynamic range >80 dB required for tissue contrast discrimination. |
| Battery-Powered Scopemeter | Spectrum Analyzer Front-End |
Use Scenario: Portable handheld oscilloscope with 100 MS/s equivalent sampling (via interpolation) and ≥8-bit vertical resolution. IC Role / Device Role / Timing Role: Primary digitizer converting conditioned analog input to parallel digital stream for real-time FFT and display rendering. Use Value: 165 mW power at 40 MSPS extends battery life; on-chip reference eliminates calibration drift during field use across temperature gradients. |
Use Scenario: Real-time spectrum analysis of RF signals up to 100 MHz in lab-grade bench instruments. IC Role / Device Role / Timing Role: First-stage ADC in superheterodyne architecture, digitizing 0–40 MHz IF output from mixer stage. Use Value: 70.2 dBc SNR at 100 MHz input ensures accurate amplitude measurement of weak spurs; differential input rejects common-mode noise from local oscillator leakage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9240BCPZ-40 | 14-bit, 40 MSPS, but lacks on-chip reference and requires external 1.0 V reference; higher DNL (±1.0 LSB max vs. ±0.5 LSB). | Requires additional reference IC and layout area; less suitable for space-constrained portable designs. | Choose when system already provides precision external reference and cost reduction outweighs integration benefit. |
| ADS5272IPFP | 12-bit, 40 MSPS, 1.8 V supply, LVDS outputs; lower power (125 mW), no internal reference, different pinout. | LVDS interface reduces EMI but demands termination resistors and differential routing; lower resolution limits dynamic range. | Prefer for low-voltage, noise-sensitive environments where 12-bit ENOB suffices and board space permits LVDS layout. |
Compared with AD9245BCPZ-40, AD9240BCPZ-40 trades integrated reference for marginal cost savings, while ADS5272IPFP sacrifices resolution and reference integration for lower voltage operation and differential signaling - neither is pin-compatible, requiring PCB redesign.
Availability
AD9245BCPZ-40 is available at Aetrix Electronics and suitable for IF sampling receivers, medical ultrasound systems, and battery-powered test equipment requiring stable component supply, long-term obsolescence management, and traceable sourcing.
Supply support for AD9245BCPZ-40 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with R&D centers worldwide.
The AD9245 belongs to Analog Devices' high-speed data converter product line, designed specifically for demanding communications, medical imaging, and instrumentation applications requiring high resolution, wide bandwidth, and low power in compact packages.
FAQ
What is the maximum analog input frequency supported by the AD9245BCPZ-40?
The AD9245BCPZ-40 features a 500 MHz differential analog input bandwidth, enabling accurate digitization of signals up to 100 MHz fundamental frequency while maintaining 72.7 dBc SNR at 32.5 MHz input. This bandwidth supports undersampling architectures for IF signals in communications systems without external amplification or filtering.
Does the AD9245BCPZ-40 include an internal voltage reference?
Yes, the AD9245BCPZ-40 integrates a precision voltage reference configurable for 1.0 V or 0.5 V output, eliminating the need for external reference components. Reference output voltage error is ±5 mV (typical) in 1.0 V mode, and load regulation is 0.8 mV at 1.0 mA - verified in Table 1 of the Rev. E datasheet.
Is the AD9245BCPZ-40 pin-compatible with other members of the AD9245 family?
No - the AD9245BCPZ-40 shares the same 32-lead LFCSP package and pinout with all AD9245 speed grades (–20, –40, –65, –80), but it is not pin-compatible with AD9215, AD9235, or AD9236 as stated in Product Highlights; those are 10-bit converters with differing pin functions and electrical characteristics.
What power supply requirements does the AD9245BCPZ-40 have?
The AD9245BCPZ-40 requires two independent supplies: AVDD (2.7–3.6 V, 100 mA typical at 40 MSPS) for the analog core, and DRVDD (2.25–3.6 V, 5 mA typical) for digital outputs. AGND and DGND must be separated and connected at a single point to minimize noise coupling between analog and digital sections.
How does the AD9245BCPZ-40 handle out-of-range conditions?
The AD9245BCPZ-40 asserts the OTR (out-of-range) pin high when input exceeds the selected full-scale range. Combined with the MSB, OTR distinguishes low-side saturation (OTR high, MSB low) from high-side saturation (OTR high, MSB high), enabling robust signal clipping detection in real-time DSP pipelines without software overhead.
AD9245BCPZ-40 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 32-WFQFN Exposed Pad, CSP
- Packaging:
- Tray
- Product Status:
- Active
- Number of Bits:
- 14
- Sampling Rate (Per Second):
- 40M
- 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:
- External, Internal
- Voltage - Supply, Analog:
- 2.7V ~ 3.6V
- Voltage - Supply, Digital:
- 2.25V ~ 3.6V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 32-LFCSP-WQ (5x5)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD9245BCPZ-40 FAQ
1.How can I place an order for AD9245BCPZ-40 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9245BCPZ-40 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 AD9245BCPZ-40 reliable?
The price and inventory of AD9245BCPZ-40 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9245BCPZ-40 is usually 5 days.
3.What payment methods are accepted for AD9245BCPZ-40?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9245BCPZ-40 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD9245BCPZ-40?
AD9245BCPZ-40 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9245BCPZ-40 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 AD9245BCPZ-40?
For technical support, including AD9245BCPZ-40 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9245BCPZ-40 requirements.
6.How does Aetrix verify that AD9245BCPZ-40 is sourced from the original manufacturer or authorized distributors?
All AD9245BCPZ-40 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 AD9245BCPZ-40 meets industry standards.
7.What is the process for return or replacement of AD9245BCPZ-40?
All AD9245BCPZ-40 units undergo pre-shipment inspection (PSI). If there is an issue with AD9245BCPZ-40, 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 AD9245BCPZ-40 part is unused and in its original packaging.
Return procedure for AD9245BCPZ-40:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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