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Analog Devices Inc. AD7699BCBZ-RL7
- Part No.:
- AD7699BCBZ-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 20-UFBGA, WLCSP
- Datasheet:
-
AD7699BCBZ-RL7.pdf
- Description:
- IC ADC 16BIT 20WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:4,151
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Product details
Overview
AD7699BCBZ-RL7 from Analog Devices is a 16-bit, 8-channel successive approximation register (SAR) ADC with 500 kSPS throughput, ±0.5 LSB typical INL, 91.5 dB SINAD at 20 kHz, and integrated 4.096 V reference - designed for high-precision, low-power multichannel data acquisition in portable medical and industrial instrumentation.
For engineers reviewing the AD7699BCBZ-RL7 datasheet, AD7699BCBZ-RL7 pinout, AD7699BCBZ-RL7 application, or AD7699BCBZ-RL7 equivalent, this page delivers verified specifications, LFCSP-20 package details, SPI-compatible serial interface behavior, and validated alternative options for battery-powered ECG, power line monitoring, and seismic sensing systems.
Technical Context
The AD7699BCBZ-RL7 implements a charge redistribution SAR architecture with no pipeline delay, enabling immediate conversion result availability and deterministic timing. Its internal sequencer supports automatic channel scanning across all eight analog inputs (IN0–IN7), with configurable input modes: unipolar single-ended, pseudo-bipolar, or differential (GND-sense).
It integrates a buffered 4.096 V bandgap reference, on-chip temperature sensor (283 mV at 25°C, 1 mV/°C), and selectable one-pole filter - all operating from a single 4.5 V to 5.5 V VDD supply while supporting 1.8 V to 5 V logic via dedicated VIO pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit with no missing codes - guarantees monotonicity and full code coverage for precision measurement systems. |
| Throughput | 500 kSPS maximum - enables real-time capture of fast transients in power quality or vibration analysis. |
| INL | ±0.5 LSB typical (±1.5 LSB max) - ensures <±0.0023% FSR absolute accuracy over temperature for calibrated sensors. |
| SINAD | 91.5 dB at 20 kHz (VREF = 5 V) - supports >15-bit effective resolution for audio-band and ECG signal fidelity. |
| Power @ 500 kSPS | 26 mW - achieves 52 nJ/conversion efficiency, critical for extended battery life in handheld devices. |
| Analog Input Range | 0 V to VREF (unipolar), −VREF/2 to +VREF/2 (bipolar) - accommodates both grounded and floating sensor outputs without external level-shifting. |
| Reference Options | Internal 4.096 V ±10 ppm/°C drift, external buffered (≤4.096 V), or direct external (0.5 V to VDD) - simplifies system BOM and improves thermal stability. |
Pinout & Package
AD7699BCBZ-RL7 is housed in a 20-lead 4 mm × 4 mm LFCSP (CP-20-101) with exposed paddle (not internally connected), rated for −40°C to +85°C operation. Pin 1 is located at top-left per JEDEC MO-220 standard; EPAD must be soldered to PCB ground plane for thermal and mechanical reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (Pins 1, 20) | Power supply input | Nominally 4.5–5.5 V; requires 10 µF + 100 nF decoupling - powers core ADC, reference, and sequencer. |
| REF (Pin 2) | Reference I/O | Outputs 4.096 V when internal ref enabled; accepts buffered external reference up to VDD − 0.5 V - primary voltage reference node. |
| REFIN (Pin 3) | Internal ref output / buffer input | Provides unbuffered bandgap (2.3 V) or accepts 0.5–4.096 V source for buffered REF - enables low-drift external reference integration. |
| GND (Pins 4, 5) | Power ground | Dual ground pins minimize ground bounce during high-speed conversions - critical for noise-sensitive analog front-end design. |
| IN0–IN7 (Pins 6–10, 16–19) | Analog input channels | Eight fully differential-capable inputs; COM (Pin 10) sets common-mode reference point for all channels - supports flexible sensor multiplexing. |
| CNV (Pin 11) | Conversion trigger | Rising edge initiates sampling; held high enables busy indicator - provides precise hardware-controlled timing for synchronous acquisition. |
| DIN/SCK/SDO (Pins 12–14) | SPI serial interface | MSB-first, 16-bit frame; compatible with SPI/MICROWIRE/QSPI/DSP controllers - eliminates need for protocol translation logic. |
| VIO (Pin 15) | Digital I/O supply | Independent 1.8–5 V rail - allows direct interfacing with low-voltage microcontrollers without level shifters. |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline delay, SAR architecture | Conversion results available immediately after CNV rising edge - enables tight control-loop timing and zero-latency feedback in closed-loop systems. |
| Integrated temperature sensor | 283 mV at 25°C, 1 mV/°C output - provides on-chip thermal monitoring without external components, useful for gain/offset calibration compensation. |
| Selectable 1-pole filter | Configurable digital filter in sequencer path - reduces aliasing for oversampled measurements without external RC networks. |
| Channel sequencer | Auto-scans IN0–IN7 in programmable order - eliminates host CPU overhead for multichannel polling, ideal for continuous data logging. |
| Low standby current | 50 nA at 25°C - extends battery life in sleep-wake architectures such as portable diagnostic tools and remote sensors. |
Applications
| ECG/EKG Monitoring | Power Line Quality Analysis |
|---|---|
Use Scenario: Simultaneous acquisition of multiple limb leads and chest electrodes in portable cardiac monitors. IC Role / Device Role / Timing Role: 8-channel SAR ADC digitizes analog bio-potential signals with 16-bit resolution and 500 kSPS aggregate rate, synchronized via CNV-triggered sequencer. Use Value: Eliminates external multiplexer and reference ICs; internal 4.096 V reference ensures stable gain across temperature for clinical-grade amplitude accuracy. |
Use Scenario: Real-time harmonic distortion and RMS voltage/current measurement in smart grid meters and protection relays. IC Role / Device Role / Timing Role: High-SINAD ADC captures 50/60 Hz fundamentals and up to 25th harmonics with minimal THD (−97 dB) and 14 MHz input bandwidth. Use Value: Enables Class 0.2 metering compliance without external anti-aliasing filters; low 52 nJ/conversion supports solar-powered field units. |
| Seismic Data Acquisition | Industrial Process Control Sensors |
Use Scenario: Low-noise recording of geophone and accelerometer outputs in oil/gas exploration and structural health monitoring. IC Role / Device Role / Timing Role: 93.3 dB dynamic range and 91.5 dB SINAD preserve weak signal integrity amid high-amplitude ambient noise; sequencer scans multi-axis sensors. Use Value: Internal temperature sensor allows real-time correction of piezoelectric sensor drift; LFCSP package withstands mechanical shock and vibration. |
Use Scenario: Multi-point temperature, pressure, and flow sensing in PLC I/O modules and distributed control systems. IC Role / Device Role / Timing Role: Unipolar/differential input flexibility interfaces directly with RTDs, strain gauges, and 4–20 mA loop receivers using COM-referenced configuration. Use Value: Single-supply 5 V operation with 1.8 V logic compatibility simplifies mixed-voltage backplane design; 50 nA standby current enables fail-safe low-power states. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multichannel SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7689BCPZ-RL7 | 4-channel, same 16-bit SAR core, 250 kSPS max, identical LFCSP-20 package and SPI interface. | Lower channel count and throughput - suitable only where fewer inputs or slower sampling suffices. | Choose AD7689BCPZ-RL7 when system requires ≤4 channels and lower power (13 mW @ 250 kSPS) with identical software stack. |
| ADS8689IPWR | Texas Instruments 16-bit, 8-channel SAR ADC; 1 MSPS throughput; integrated PGA (±10.24 V range); different SPI framing and no internal reference. | Requires external reference and higher supply (up to 5.5 V analog, 3.3 V digital); supports wider input ranges via PGA. | Choose ADS8689IPWR when input signal amplitudes exceed ±5 V or programmable gain is required - but expect layout and firmware rework. |
Compared with AD7699BCBZ-RL7, AD7689BCPZ-RL7 trades channel count and speed for lower power and cost in simpler systems, while ADS8689IPWR adds PGA flexibility at the expense of reference dependency and non-drop-in firmware integration.
Availability
AD7699BCBZ-RL7 is available at Aetrix Electronics and suitable for battery-powered medical instruments, industrial process control systems, and seismic data acquisition requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for AD7699BCBZ-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 design centers worldwide.
The AD7699 belongs to Analog Devices' PulSAR® family of precision SAR ADCs, engineered specifically for low-power, multichannel data acquisition where accuracy, speed, and integration reduce system complexity in portable and harsh-environment applications.
FAQ
What is the package type and footprint of AD7699BCBZ-RL7?
AD7699BCBZ-RL7 uses a 20-lead 4 mm × 4 mm LFCSP (CP-20-101) package with exposed paddle. The pinout matches Figure 4 in the Rev. G datasheet, and the EPAD must be soldered to the PCB ground plane for thermal reliability and mechanical stability. No leaded or SOIC variants exist for this part number.
Does AD7699BCBZ-RL7 require an external reference, or can it operate with its internal reference?
AD7699BCBZ-RL7 can operate autonomously using its internal 4.096 V reference (±10 ppm/°C drift), eliminating the need for external references in most applications. It also supports external buffered (≤4.096 V) or direct (0.5 V to VDD) references for higher precision or custom voltage scaling - all configured via the CFG register.
How does the channel sequencer in AD7699BCBZ-RL7 simplify multichannel acquisition?
The AD7699BCBZ-RL7 sequencer automatically cycles through IN0–IN7 in user-defined order upon each CNV trigger, reducing host processor load and ensuring deterministic inter-channel timing. It supports single-shot, continuous, and burst modes - enabling seamless integration into real-time data loggers without software-based multiplexing overhead.
What digital interface standards is AD7699BCBZ-RL7 compatible with?
AD7699BCBZ-RL7 features an SPI-compatible serial interface that operates with standard SPI, MICROWIRE, QSPI, and DSP controllers. It uses MSB-first 16-bit frames, supports clock polarity/phase modes 0 and 3, and tolerates VIO from 1.8 V to 5 V - allowing direct connection to ARM Cortex-M, TI C2000, and FPGA soft peripherals without level shifters.
What is the guaranteed performance grade for INL and SINAD in AD7699BCBZ-RL7?
AD7699BCBZ-RL7 guarantees ±1.5 LSB maximum integral nonlinearity (INL) and 91.5 dB typical SINAD at 20 kHz with VREF = 5 V over −40°C to +85°C. These values are measured and specified in Table 2 of the Rev. G datasheet and apply directly to the LFCSP-20 variant (BCBZ suffix).
AD7699BCBZ-RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- PulSAR®
- Package/Case:
- 20-UFBGA, WLCSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 500k
- Number of Inputs:
- 8
- Input Type:
- Single Ended
- Data Interface:
- DSP, MICROWIRE™, QSPI™, and SPI™
- Configuration:
- MUX-S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 4.5V ~ 5.5V
- Voltage - Supply, Digital:
- 4.5V ~ 5.5V
- Features:
- Temperature Sensor
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 20-WLCSP (2.39x2.39)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7699BCBZ-RL7 FAQ
1.How can I place an order for AD7699BCBZ-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7699BCBZ-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 AD7699BCBZ-RL7 reliable?
The price and inventory of AD7699BCBZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7699BCBZ-RL7 is usually 5 days.
3.What payment methods are accepted for AD7699BCBZ-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7699BCBZ-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7699BCBZ-RL7?
AD7699BCBZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7699BCBZ-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 AD7699BCBZ-RL7?
For technical support, including AD7699BCBZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7699BCBZ-RL7 requirements.
6.How does Aetrix verify that AD7699BCBZ-RL7 is sourced from the original manufacturer or authorized distributors?
All AD7699BCBZ-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 AD7699BCBZ-RL7 meets industry standards.
7.What is the process for return or replacement of AD7699BCBZ-RL7?
All AD7699BCBZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD7699BCBZ-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 AD7699BCBZ-RL7 part is unused and in its original packaging.
Return procedure for AD7699BCBZ-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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