My Inquiry
My Account
Analog Devices Inc. AD9245BCPZRL7-20
- Part No.:
- AD9245BCPZRL7-20
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 32-WFQFN Exposed Pad, CSP
- Datasheet:
-
AD9245BCPZRL7-20.pdf
- Description:
- IC ADC 14BIT PIPELINED 32LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:4,205
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AD9245BCPZRL7-20 from Analog Devices is a 14-bit, 20 MSPS monolithic analog-to-digital converter (ADC) with single 3 V supply operation (2.7 V to 3.6 V), differential input (500 MHz bandwidth), on-chip reference and sample-and-hold, and DNL of ±0.5 LSB. It delivers 73.5 dBc SNR at 2.4 MHz input and supports medical ultrasound and IF sampling in communications receivers.
For engineers reviewing the AD9245BCPZRL7-20 datasheet, AD9245BCPZRL7-20 pinout, AD9245BCPZRL7-20 application, or AD9245BCPZRL7-20 equivalent, key selection considerations include its 20 MSPS maximum conversion rate, 32-lead LFCSP package, 2 Vp-p differential input range, clock duty-cycle stabilizer omission (not supported at 20 MSPS), and compatibility with 2.5 V/3.3 V digital logic via separate DRVDD supply.
Technical Context
The AD9245BCPZRL7-20 employs 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 configurations with up to 100 MHz input frequency capability.
It uses a single-ended clock input with no duty-cycle stabilizer (DCS disabled per spec for 20 MSPS variant), outputs straight binary or twos complement data, and provides an out-of-range (OTR) flag indicating overflow beyond the selected input span. Fabricated in advanced CMOS, it integrates internal voltage reference (1.0 V or 0.5 V modes) and supports flexible analog input ranges from 1 Vp-p to 2 Vp-p.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit - guarantees full-scale quantization with 16,384 discrete levels and no missing codes over temperature. |
| Max Sample Rate | 20 MSPS - defines maximum sustained conversion throughput; timing-critical systems must meet 50 ns CLK period. |
| SNR @ 2.4 MHz | 73.5 dBc - determines minimum detectable signal amplitude above noise floor in narrowband applications. |
| Differential Nonlinearity | ±0.5 LSB - ensures monotonic transfer function and prevents code ambiguities in precision measurement. |
| Analog Input Bandwidth | 500 MHz - enables faithful digitization of fast-rising signals and wideband RF/IF inputs without external amplification. |
| Power Consumption | 90 mW at 20 MSPS - enables battery-powered instrumentation with thermal budget under 100 mW. |
| Input Voltage Range | 1 Vp-p to 2 Vp-p - configurable via reference mode; simplifies front-end driver design for varying signal amplitudes. |
Pinout & Package
AD9245BCPZRL7-20 is housed in a 32-lead LFCSP (Lead Frame Chip Scale Package) with exposed paddle, specified for industrial temperature range (–40°C to +85°C). The exposed paddle must be soldered to the PCB ground plane to ensure thermal reliability and optimal EMI performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLK | Clock Input | Single-ended edge-triggered sampling control; requires stable 50 ns period (20 MSPS); no DCS circuitry active. |
| VIN+, VIN– | Differential Analog Input | High-bandwidth (500 MHz) input pair accepting 1–2 Vp-p signals; common-mode voltage programmable via REFT/REFB. |
| D0–D13 | Parallel Digital Output | 14-bit parallel CMOS outputs (D0 LSB to D13 MSB); driven by separate DRVDD (2.25–3.6 V) for logic-level flexibility. |
| OTR | Overflow Indicator | Active-high flag signaling input exceeds ±FSR; used with MSB to distinguish high/low saturation events. |
| MODE | Data Format & Control | Selects offset binary/twos complement output and enables/disables clock duty-cycle stabilization (N/A for -20 variant). |
| SENSE, VREF, REFT, REFB | Reference Interface | Supports internal (1.0 V/0.5 V) or external reference; SENSE selects mode; REFT/REFB form differential reference input. |
| AVDD, AGND, DRVDD, DGND | Power & Ground | Separate analog/digital supplies isolate noise; AVDD = 2.7–3.6 V; DRVDD = 2.25–3.6 V; AGND/DGND must be partitioned and joined at single point. |
Key Features
| Feature | Design Value |
|---|---|
| Single 3 V supply operation | Eliminates dual-supply design complexity while maintaining 72.7+ dBc SNR and low 90 mW power at 20 MSPS. |
| No missing codes guaranteed | Ensures deterministic behavior in closed-loop control and real-time signal processing without code dropout risk. |
| Differential input with 500 MHz bandwidth | Enables direct digitization of IF signals up to 100 MHz without external gain stages or baluns in WCDMA/CDMA receivers. |
| On-chip reference and sample-and-hold | Reduces BOM count and layout area; eliminates need for external precision reference IC and external SHA circuitry. |
| Flexible analog input range (1–2 Vp-p) | Allows seamless interface with diverse front-end amplifiers-no level-shifting circuitry required across instrument variants. |
Applications
| Medical Ultrasound Imaging | IF Sampling in Cellular Base Stations |
|---|---|
Use Scenario: Digitizing echo return signals from piezoelectric transducers operating at 2–15 MHz carrier frequencies with dynamic range >100 dB. IC Role / Device Role / Timing Role: High-fidelity ADC capturing time-domain acoustic reflections; pipeline latency of 7 cycles enables deterministic beamforming alignment. Use Value: 73.5 dBc SNR at 2.4 MHz preserves low-amplitude tissue boundary detail; 14-bit resolution supports 80+ dB dynamic range reconstruction. | Use Scenario: Downconverting and digitizing 10–30 MHz IF signals from WCDMA/CDMA-One receivers with adjacent channel rejection requirements. IC Role / Device Role / Timing Role: Direct IF sampling ADC replacing mixer + baseband filter chain; differential input rejects common-mode noise from RF section. Use Value: 500 MHz analog input bandwidth captures harmonics and blockers without aliasing; SFDR ≥80 dBc suppresses intermodulation distortion. |
| Battery-Powered Handheld Scopemeters | Power-Sensitive Military Radar Receivers |
Use Scenario: Portable oscilloscope capturing transient waveforms up to 10 MHz with 12+ bit effective resolution and sub-ns timing accuracy. IC Role / Device Role / Timing Role: Low-power, high-accuracy ADC enabling 20 MSPS real-time sampling in compact, thermally constrained enclosures. Use Value: 90 mW power at 20 MSPS extends battery life; 1.0 V internal reference eliminates external component drift and calibration overhead. | Use Scenario: EW/ESM systems requiring rapid signal acquisition across multiple bands with minimal SWaP-C footprint and radiation-tolerant design margins. IC Role / Device Role / Timing Role: Radiation-hardened-by-design ADC (industrial temp grade) performing wideband signal capture in pulsed radar front ends. Use Value: Guaranteed no missing codes ensures reliable pulse detection; –40°C to +85°C rating supports operation in uncontrolled vehicle/airframe environments. |
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 |
|---|---|---|---|
| AD9245BCPZRL7-40 | Higher max sample rate (40 MSPS), increased power (165 mW), identical pinout and feature set. | Suitable for wider IF bandwidths (e.g., TDS-CDMA) where 20 MSPS is insufficient. | Select when system clock budget allows >20 MSPS and SNR degradation at higher rates is acceptable. |
| AD9235BCPZRL7-20 | 12-bit resolution, lower power (65 mW), same 32-lead LFCSP package and pin compatibility. | Fits cost-sensitive, lower-dynamic-range applications like basic spectrum monitoring or audio digitization. | Choose when 12-bit ENOB suffices and board space/power constraints favor drop-in replacement without layout change. |
Compared with AD9245BCPZRL7-40 and AD9235BCPZRL7-20, the AD9245BCPZRL7-20 uniquely balances 14-bit fidelity, 90 mW ultra-low power, and industrial temperature compliance-making it optimal for portable medical and communications equipment where resolution and efficiency are co-constrained.
Availability
AD9245BCPZRL7-20 is available at Aetrix Electronics and suitable for medical ultrasound imaging, IF sampling in cellular base stations, and battery-powered handheld scopemeters requiring stable component supply across extended production lifecycles.
Supply support for AD9245BCPZRL7-20 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 AD9245 product line delivers high-speed, high-resolution ADCs optimized for communications infrastructure, medical imaging, and test equipment-designed to replace legacy 10-bit converters with pin-compatible 14-bit upgrades while minimizing system redesign.
FAQ
What is the maximum sample rate supported by the AD9245BCPZRL7-20?
The AD9245BCPZRL7-20 supports a maximum conversion rate of 20 MSPS, corresponding to a minimum CLK period of 50 ns. This is confirmed in Table 6 of the Rev. E datasheet, which specifies "AD9245BCP-20" with Max Conversion Rate = 20 MSPS. Higher-speed variants (e.g., -40, -65, -80) are distinct orderable parts with different internal timing and power characteristics.
Does the AD9245BCPZRL7-20 include a clock duty-cycle stabilizer (DCS)?
No, the AD9245BCPZRL7-20 does not implement the clock duty-cycle stabilizer. Per Table 6 footnote 1, DCS functionality applies only to AD9245BCP-65 and AD9245BCP-80 models. At 20 MSPS, the AD9245BCPZRL7-20 relies on externally provided clock signal with specified pulse width high/low minima (15.0 ns each) to maintain performance.
What reference voltage options are available for the AD9245BCPZRL7-20?
The AD9245BCPZRL7-20 supports both internal and external reference configurations. Internal modes provide 1.0 V or 0.5 V output (±5 mV error at 1.0 V mode); external reference connects across REFT/REFB pins. SENSE pin selects between internal/external modes, and VREF serves as reference input/output terminal-details are in Table 9 and Figure 1 of the datasheet.
Is the AD9245BCPZRL7-20 pin-compatible with other members of the AD9245 family?
Yes, all AD9245 speed grades-including AD9245BCPZRL7-20, -40, -65, and -80-share identical 32-lead LFCSP packaging and pinout. Product Highlights explicitly state: "The AD9245 is pin-compatible with the AD9215, AD9235, and AD9236," confirming mechanical and electrical interoperability across speed variants for migration flexibility.
What is the power consumption of the AD9245BCPZRL7-20 at full sample rate?
The AD9245BCPZRL7-20 consumes 90 mW at 20 MSPS with DC input (Table 1), and 95 mW with sine-wave input (Table 1 footnote 4). This includes 30 mA analog supply current (IAVDD) and 2 mA digital driver supply current (IDRVDD) at AVDD = 3.0 V and DRVDD = 2.5 V-enabling integration into thermally constrained portable instruments.
AD9245BCPZRL7-20 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):
- 20M
- 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:
- -
AD9245BCPZRL7-20 FAQ
1.How can I place an order for AD9245BCPZRL7-20 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9245BCPZRL7-20 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 AD9245BCPZRL7-20 reliable?
The price and inventory of AD9245BCPZRL7-20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9245BCPZRL7-20 is usually 5 days.
3.What payment methods are accepted for AD9245BCPZRL7-20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9245BCPZRL7-20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD9245BCPZRL7-20?
AD9245BCPZRL7-20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9245BCPZRL7-20 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 AD9245BCPZRL7-20?
For technical support, including AD9245BCPZRL7-20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9245BCPZRL7-20 requirements.
6.How does Aetrix verify that AD9245BCPZRL7-20 is sourced from the original manufacturer or authorized distributors?
All AD9245BCPZRL7-20 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 AD9245BCPZRL7-20 meets industry standards.
7.What is the process for return or replacement of AD9245BCPZRL7-20?
All AD9245BCPZRL7-20 units undergo pre-shipment inspection (PSI). If there is an issue with AD9245BCPZRL7-20, 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 AD9245BCPZRL7-20 part is unused and in its original packaging.
Return procedure for AD9245BCPZRL7-20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AD9245BCPZRL7-20 Tags
-
ADC081C021CIMKX/NOPB
Texas Instruments
-
MCP3021A5T-E/OT
Microchip Technology
-
TLA2024IRUGR
Texas Instruments
-
MCP3221A5T-E/OT
Microchip Technology
-
MCP3221A5T-I/OT
Microchip Technology
-
MCP3221A4T-E/OT
Microchip Technology
-
MCP3221A6T-E/OT
Microchip Technology
-
MCP3221A0T-E/OT
Microchip Technology
-
MCP3221A1T-E/OT
Microchip Technology
-
ADC121S021CIMFX/NOPB
Texas Instruments
-
MCP3001-I/MS
Microchip Technology
-
MCP3001-I/SN
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
