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Analog Devices Inc. AD4011BCPZ-RL7
- Part No.:
- AD4011BCPZ-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-VFDFN Exposed Pad, CSP
- Datasheet:
-
AD4011BCPZ-RL7.pdf
- Description:
- IC ADC 18BIT SAR 10LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:488
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Product details
Overview
AD4011BCPZ-RL7 from Analog Devices is an 18-bit, 500 kSPS differential successive approximation register (SAR) analog-to-digital converter with Easy Drive architecture, ±VREF input range (2.4 V–5.1 V reference), −40°C to +125°C operation, and 3 mm × 3 mm LFCSP package. It delivers ±1.0 LSB INL, 100.5 dB SNR at 1 kHz, and 130.5 dB oversampled dynamic range (OSR = 1024), targeting high-precision data acquisition in space-constrained industrial sensors.
For engineers reviewing the AD4011BCPZ-RL7 datasheet, AD4011BCPZ-RL7 pinout, AD4011BCPZ-RL7 application, or AD4011BCPZ-RL7 equivalent, key selection criteria include guaranteed 18-bit no-missing-codes performance, input overvoltage clamp (50 mA sink), high-Z mode for reduced driver burden, SPI/QSPI/MICROWIRE compatibility, and single 1.8 V supply with 1.71 V–5.5 V logic interface.
Technical Context
The AD4011BCPZ-RL7 implements a differential SAR architecture with integrated input span compression and high-Z acquisition mode, enabling direct connection to low-power amplifiers without external buffering. Its Easy Drive features reduce input current to 0.5 μA/MSPS and extend acquisition time to ≥79% of cycle time at 500 kSPS - critical for multiplexed sensor arrays.
It supports flexible digital interfacing via 3-wire or 4-wire SPI modes, daisy-chain capability, and status bit reporting. The internal reference buffer accepts 2.4 V–5.1 V external VREF, while the 1.8 V VDD supply scales power linearly with throughput - consuming only 2.4 mW (VDD only) at 500 kSPS.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 18-bit with guaranteed no missing codes - ensures full code coverage for precision measurement systems. |
| Throughput Rate | 500 kSPS - enables accurate capture of signals up to ~10 MHz bandwidth with adequate oversampling margin. |
| INL (Max) | ±1.0 LSB (±3.8 ppm) - maintains linearity across full temperature range (−40°C to +125°C) without calibration. |
| SNR @ 1 kHz | 100.5 dB at VREF = 5 V - supports >16.5 effective number of bits (ENOB) in low-noise signal chains. |
| Oversampled DR | 130.5 dB at OSR = 1024 - allows high-resolution DC/low-frequency measurements without external filtering. |
| Input Clamp Current | 50 mA per input - protects against transient overvoltage without external diodes, reducing BOM count. |
| Power (VDD only) | 2.4 mW at 500 kSPS - enables battery-powered or thermally constrained deployments with minimal heat dissipation. |
Pinout & Package
AD4011BCPZ-RL7 is housed in a 10-lead, 3 mm × 3 mm lead-frame chip-scale package (LFCSP) with exposed pad for thermal enhancement and standard surface-mount assembly compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Analog/digital ground reference | Common return for VDD, VIO, REF, and analog inputs; requires low-impedance PCB connection to minimize noise coupling. |
| IN+ | Differential analog input positive | Accepts voltage from −VREF to +VREF (or compressed range); includes internal overvoltage clamp to 5.4 V (VREF = 5 V). |
| IN− | Differential analog input negative | Complements IN+; common-mode range centered at VREF/2 ±125 mV for optimal CMRR performance. |
| SDI | Serial data input | Accepts configuration register writes; compatible with 1.8 V–5 V logic levels via VIO supply. |
| SCK | Serial clock input | Drives SPI interface timing; minimum SCK period 12.3 ns (VIO > 1.7 V) supports up to 500 kSPS in standard mode. |
| SDO | Serial data output | Provides 18-bit twos-complement conversion result immediately after conversion; high-impedance when not active. |
| CNV | Convert start input | Edge-triggered command initiating sampling; rising edge initiates acquisition phase (1790 ns at 500 kSPS). |
| VIO | IO supply voltage | Independent 1.71 V–5.5 V rail decouples digital interface from analog core, enabling mixed-voltage system integration. |
| REF | Reference voltage input | Accepts 2.4 V–5.1 V external reference; supplies internal buffer and defines full-scale range with ±VREF differential swing. |
| VDD | Analog core supply | 1.71 V–1.89 V single supply powers SAR core and reference buffer; enables ultra-low power operation. |
Key Features
| Feature | Design Value |
|---|---|
| Easy Drive input architecture | Reduces input current to ≤1 μA at 500 kSPS and extends acquisition phase to 1790 ns - eliminates need for dedicated ADC driver amplifier. |
| Input span compression | Shifts input range to 0.1×VREF to 0.9×VREF - enables single-supply operation without negative rail while preserving full 18-bit code utilization. |
| Integrated overvoltage clamp | Sinks up to 50 mA per input during overvoltage events - prevents damage and reference disturbance, removing requirement for external protection diodes. |
| High-Z acquisition mode | Disables internal sampling capacitor switching during acquisition - reduces input current by >99% versus standard mode, easing drive requirements. |
| Flexible SPI interface | Supports 3-wire/4-wire, turbo/non-turbo, and daisy-chain configurations - simplifies integration into resource-constrained microcontrollers and isolated data links. |
Applications
| Automated Test Equipment (ATE) | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: High-channel-count parametric testing of semiconductor devices requiring synchronized multi-channel sampling and sub-LSB linearity. IC Role / Device Role / Timing Role: Precision digitizer capturing DC bias, leakage current, and transient response with 18-bit resolution and 500 kSPS throughput. Use Value: Guaranteed no-missing-codes and ±1.0 LSB INL ensure metrology-grade accuracy across temperature; Easy Drive reduces channel-to-channel crosstalk in dense PCB layouts. |
Use Scenario: Isolated temperature, pressure, and strain monitoring in factory automation nodes with limited power budget and space. IC Role / Device Role / Timing Role: Low-power SAR ADC interfacing directly to instrumentation amplifiers or bridge sensors, operating from 1.8 V supply. Use Value: 2.4 mW (VDD only) power at 500 kSPS extends battery life; input clamp and high-Z mode simplify front-end design and improve robustness in electrically noisy environments. |
| Medical Patient Monitoring | Precision Data Acquisition Systems |
|
Use Scenario: Portable ECG and bio-potential measurement where low noise, DC accuracy, and patient safety are critical. IC Role / Device Role / Timing Role: Differential input ADC acquiring low-amplitude physiological signals with 100.5 dB SNR and 130.5 dB oversampled DR. Use Value: Oversampled dynamic range eliminates need for aggressive anti-alias filtering; input clamp protects against defibrillation pulses up to 50 mA. |
Use Scenario: Calibration-grade benchtop instruments requiring traceable linearity, low drift, and long-term stability. IC Role / Device Role / Timing Role: Primary digitizer in modular DAQ systems, leveraging SPI daisy-chaining for multi-channel synchronization and status bit reporting. Use Value: ±0.21 ppm/°C zero error drift and ±1.23 ppm/°C gain error drift enable uncalibrated operation over industrial temperature range; 10-lead LFCSP eases thermal management in stacked modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 18-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD4007BCPZ-RL7 | 1 MSPS throughput, 8 mW total power at 1 MSPS (vs. 4.7 mW for AD4011BCPZ-RL7 at 500 kSPS), identical pinout and feature set. | Better suited for higher-speed multiplexed systems where 1 MSPS sampling is required without increasing clock frequency or power disproportionately. | Select AD4007BCPZ-RL7 when system sampling rate exceeds 500 kSPS but remains below 1 MSPS and thermal budget allows ~70% higher power. |
| ADS8860IDRCT | Texas Instruments 16-bit, 1 MSPS SAR ADC in 3 mm × 3 mm VSSOP; lacks input clamp, high-Z mode, and oversampling support; 1.8 V–3.6 V supply only. | Applicable in cost-sensitive, lower-accuracy industrial controls where 16-bit resolution suffices and external protection is acceptable. | Choose ADS8860IDRCT only if 16-bit resolution and absence of integrated clamping/high-Z mode are acceptable trade-offs for lower unit cost and TI ecosystem alignment. |
Compared with AD4011BCPZ-RL7, AD4007BCPZ-RL7 offers higher speed at increased power, while ADS8860IDRCT provides lower resolution and fewer protection features at reduced cost - making AD4011BCPZ-RL7 optimal for 18-bit, 500 kSPS, thermally constrained, and robust-sensor applications.
Availability
AD4011BCPZ-RL7 is available at Aetrix Electronics and suitable for automated test equipment, industrial sensor signal conditioning, and portable medical monitoring requiring stable component supply, extended temperature operation, and long-term production continuity.
Supply support for AD4011BCPZ-RL7 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 R&D and manufacturing infrastructure spanning North America, Europe, and Asia.
The AD40xx family was designed specifically for precision, low-power, high-channel-density data acquisition systems - emphasizing ease of drive, input protection, and flexible digital interfacing without sacrificing 18-bit accuracy or wide temperature operation.
FAQ
What is the maximum achievable throughput for AD4011BCPZ-RL7 in standard SPI mode?
The AD4011BCPZ-RL7 achieves a guaranteed 500 kSPS throughput in all supported modes, including standard 4-wire SPI. Turbo mode does not increase its maximum rate beyond 500 kSPS, as this is the device's rated speed grade - unlike the AD4003 (2 MSPS) or AD4007 (1 MSPS). Timing parameters in Table 4 confirm 500 kSPS as the upper limit regardless of SCK frequency or interface configuration.
Does AD4011BCPZ-RL7 require an external reference voltage?
Yes, AD4011BCPZ-RL7 requires an external reference voltage applied to the REF pin. It accepts 2.4 V to 5.1 V, and the analog input range scales directly with VREF (±VREF differential). The device contains no internal reference; using a precision external reference such as the ADR4550 or REF102 is necessary to achieve specified INL and SNR performance.
Can AD4011BCPZ-RL7 operate with a 3.3 V IO supply while using 1.8 V for VDD?
Yes, AD4011BCPZ-RL7 supports independent VIO and VDD rails. VIO may be set from 1.71 V to 5.5 V - including 3.3 V - while VDD remains at 1.71 V–1.89 V. This allows seamless interfacing with 3.3 V microcontrollers or FPGAs without level shifters, and the digital interface specifications (VIH/VIL, timing) are fully characterized across this VIO range.
How does the input overvoltage clamp function in AD4011BCPZ-RL7?
The AD4011BCPZ-RL7 input clamp activates when IN+ or IN− exceeds VREF by ~250 mV (e.g., 5.25 V at VREF = 5 V), sinking up to 50 mA to protect internal circuitry. It operates without external components and minimizes disturbance on the REF pin. Clamping is disabled during conversion to preserve accuracy, reactivating during acquisition - a behavior confirmed in Figure 21 and the Input Overvoltage Clamp section of the datasheet.
Is AD4011BCPZ-RL7 pin-compatible with other members of the AD400x family?
Yes, AD4011BCPZ-RL7 shares identical 10-lead LFCSP pinout and footprint with AD4003BCPZ-RL7 and AD4007BCPZ-RL7, enabling drop-in replacement within the same speed grade group. However, substituting AD4011BCPZ-RL7 for AD4007BCPZ-RL7 in a 1 MSPS design will under-sample; speed binning is enforced by internal configuration, not external wiring.
AD4011BCPZ-RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad, CSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 18
- Sampling Rate (Per Second):
- 500k
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- DSP, MICROWIRE™, QSPI™, and SPI™
- Configuration:
- -
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External
- Voltage - Supply, Analog:
- 1.71V ~ 1.89V
- Voltage - Supply, Digital:
- 1.71V ~ 5.5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- 10-LFCSP-WD (3x3)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD4011BCPZ-RL7 FAQ
1.How can I place an order for AD4011BCPZ-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD4011BCPZ-RL7 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 AD4011BCPZ-RL7 reliable?
The price and inventory of AD4011BCPZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD4011BCPZ-RL7 is usually 5 days.
3.What payment methods are accepted for AD4011BCPZ-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD4011BCPZ-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD4011BCPZ-RL7?
AD4011BCPZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD4011BCPZ-RL7 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 AD4011BCPZ-RL7?
For technical support, including AD4011BCPZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD4011BCPZ-RL7 requirements.
6.How does Aetrix verify that AD4011BCPZ-RL7 is sourced from the original manufacturer or authorized distributors?
All AD4011BCPZ-RL7 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 AD4011BCPZ-RL7 meets industry standards.
7.What is the process for return or replacement of AD4011BCPZ-RL7?
All AD4011BCPZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD4011BCPZ-RL7, 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 AD4011BCPZ-RL7 part is unused and in its original packaging.
Return procedure for AD4011BCPZ-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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