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Analog Devices Inc. ADAQ7988BCCZ-RL7
- Part No.:
- ADAQ7988BCCZ-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 24-FLGA
- Datasheet:
-
ADAQ7988BCCZ-RL7.pdf
- Description:
- IC ADC 16BIT SAR 24LGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,486
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Product details
Overview
ADAQ7988BCCZ-RL7 from Analog Devices is a 16-bit, 500 kSPS integrated data acquisition μModule subsystem combining SAR ADC, precision ADC driver, reference buffer, and power management in a single 5 mm × 4 mm LGA package. It delivers ±8 ppm typical INL, 91.5 dB SNR at 10 kHz (unity gain), −105 dB THD, and operates across −55°C to +125°C for high-reliability industrial data acquisition.
For engineers reviewing the ADAQ7988BCCZ-RL7 datasheet, ADAQ7988BCCZ-RL7 pinout, ADAQ7988BCCZ-RL7 application, or ADAQ7988BCCZ-RL7 equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, application-specific implementation guidance, and two confirmed alternative parts with documented functional and application-level differences.
Technical Context
The ADAQ7988BCCZ-RL7 implements a fully integrated signal chain: a 16-bit SAR ADC core paired with a low-noise, high-bandwidth ADC driver (37 MHz −3 dB BW, 110 V/µs slew rate), a stable reference buffer (±0.06 mV zero error, 1.3 µV/°C drift), and an efficient LDO regulator supporting dual-supply (±7.7 V / −2.5 V) or single-supply (5 V) operation. Its μModule architecture embeds critical passive components to eliminate layout-sensitive external RC networks.
It supports SPI-/QSPI-/MICROWIRE™-compatible serial interface with daisy-chain capability, 1.8 V–5 V logic compatibility, and three independent power-down controls (PD_AMP, PD_REF, PD_LDO) enabling dynamic power scaling down to 14 µA standby current. Acquisition phase is fixed at 800 ns for 500 kSPS throughput, with aperture jitter of 2.0 ns ensuring precise timing integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit with no missing codes - guarantees monotonicity and full code coverage over full input range. |
| Sampling Rate | 500 kSPS - enables real-time capture of signals up to 250 kHz Nyquist bandwidth without aliasing. |
| INL Error | ±8 ppm typical (±20 ppm max) - ensures <0.0013% end-point linearity error for precision measurement systems. |
| SNR | 91.5 dB typical at 10 kHz (unity gain) - corresponds to ~15.2 bits effective resolution for clean signal digitization. |
| Power Dissipation | 16.5 mW typical at 500 kSPS - enables battery-powered instrumentation with thermal headroom in compact enclosures. |
| Operating Temp | −55°C to +125°C - qualified for aerospace, downhole, and automotive under-hood applications requiring extended temperature reliability. |
| Package | 24-lead LGA, 5 mm × 4 mm - surface-mount footprint with exposed thermal pad for PCB-level heat dissipation control. |
Pinout & Package
The ADAQ7988BCCZ-RL7 uses a 24-lead, 5 mm × 4 mm LGA (Land Grid Array) package with exposed thermal pad (pin 25, not electrically connected). Pin numbering follows standard LGA convention: top-left corner is Pin 1, row-wise left-to-right, top-to-bottom.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Main supply input | 3.5 V to 10 V input powering internal LDO; requires local 10 µF ceramic decoupling for stability. |
| V+ | Positive analog supply | +3.7 V to +7 V (dual-supply mode); sets ADC driver output swing and reference headroom. |
| V− | Negative analog supply | −2.5 V to −0.2 V (dual-supply) or 0 V (single-supply); defines common-mode baseline for differential inputs. |
| VIO | Digital I/O supply | 1.7 V to 5.5 V logic interface voltage; determines CNV/SDI/SCK threshold levels and SDO drive strength. |
| REF | Reference input | Accepts 2.4 V to 5.1 V external reference; internal buffer provides 50 MΩ input impedance and low noise. |
| IN+, IN− | Differential analog inputs | High-impedance (50 MΩ common-mode, 260 kΩ diff) inputs compatible with sensor bridges and amplifiers. |
| CNV | Conversion start | Edge-triggered command initiating sampling; rising edge starts acquisition phase (800 ns for ADAQ7988). |
| SDI | Serial data input | Configures device settings (gain, power modes) and supports daisy-chain address selection via MSB bit. |
| SCK | Serial clock | Up to 95 MHz (VIO > 4.5 V); timing-critical for readout - tSCK min = 10.5 ns limits maximum throughput. |
| SDO | Serial data output | 16-bit straight-binary output; valid within 500–1200 ns after CNV rising edge depending on VIO level. |
| PD_AMP | ADC driver power-down | Logic-high (>2.6 V) enables driver; <2.2 V disables it, reducing quiescent current by ~1.6 mA. |
| PD_REF | Reference buffer power-down | Independent control of REFOUT buffer; turn-off time <1.25 µs enables rapid wake-up for burst acquisition. |
| GND | Analog/digital ground | Single ground plane required; pin 12 and pin 24 are dedicated GND terminals for low-impedance return paths. |
Key Features
| Feature | Design Value |
|---|---|
| System-in-Package Integration | Combines SAR ADC, driver, reference buffer, and LDO with matched passive components - eliminates 12+ external parts and associated layout sensitivity. |
| Configurable ADC Driver Feedback | External feedback resistor network allows gain adjustment (non-unity) and common-mode level shifting without degrading AC performance. |
| Dual- or Single-Supply Flexibility | Operates with ±7.7 V / −2.5 V dual supplies or 5 V single supply - simplifies system power architecture while maintaining 16-bit linearity. |
| Dynamic Power Scaling | Reduces ADC driver current during idle cycles - cuts total power to 9 mW at 1 kSPS with 10% duty cycle for intermittent sensing. |
| Robust ESD Protection | 3500 V HBM and 1250 V FICDM ratings - withstands handling and board-level transients without external protection diodes. |
Applications
| Automated Test Equipment (ATE) | Battery-Powered Instrumentation |
|---|---|
Use Scenario: High-channel-count parametric test systems requiring synchronized multi-channel sampling with minimal board area per channel. IC Role / Device Role / Timing Role: Standalone acquisition node providing calibrated 16-bit digitization with <2 ns aperture jitter and daisy-chainable SPI interface. Use Value: Reduces per-channel BOM count by 50% and eliminates inter-channel skew calibration due to monolithic SiP timing alignment. |
Use Scenario: Portable handheld multimeters and environmental sensors operating from coin-cell or Li-ion batteries with multi-year runtime requirements. IC Role / Device Role / Timing Role: Low-power data acquisition subsystem enabling 500 kSPS burst sampling only when triggered, with sub-23 µA deep-sleep current. Use Value: Extends battery life by 3.2× vs discrete solutions through integrated dynamic power scaling and 14 µA standby current. |
| Communications Infrastructure | Medical Instruments |
Use Scenario: Base station front-end monitoring of RF power amplifier bias currents and temperature-compensated gain control loops. IC Role / Device Role / Timing Role: Precision analog monitor capturing DC and low-frequency AC signals (≤250 kHz) with high CMRR (130 dB) and PSRR (105 dB). Use Value: Rejects switching noise from nearby DC/DC converters and maintains accuracy despite supply rail ripple up to 100 mVpp. |
Use Scenario: Patient-worn vital sign monitors measuring ECG, impedance pneumography, or bioimpedance with clinical-grade accuracy. IC Role / Device Role / Timing Role: Medical-certifiable signal acquisition block delivering 14.8 ENOB, <0.001% gain error, and −105 dB THD for low-distortion waveform fidelity. Use Value: Meets IEC 60601-2-27 ECG diagnostic accuracy requirements without post-processing correction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar data acquisition subsystem applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADAQ7980BCCZ-RL7 | 1 MSPS sampling rate, 21 mW typical power at full rate, identical pinout and feature set. | Required where >500 kSPS throughput is needed for wideband signal capture (e.g., ultrasound receive chains). | Select ADAQ7980BCCZ-RL7 only if system demands ≥1 MSPS sustained sampling; otherwise ADAQ7988BCCZ-RL7 offers better power efficiency at 500 kSPS. |
| LTC2378-16#PBF | Discrete 16-bit SAR ADC (no integrated driver/reference/LDO); requires external op amp, reference, and power sequencing. | Suitable for designs needing custom front-end gain/attenuation or non-standard reference voltages beyond 5 V. | Choose LTC2378-16#PBF only when full signal chain customization is required; ADAQ7988BCCZ-RL7 reduces design risk and layout iterations. |
Compared with ADAQ7980BCCZ-RL7, the ADAQ7988BCCZ-RL7 trades 2× lower throughput for 21% reduced power at 500 kSPS and identical accuracy - making it optimal for power-constrained, medium-bandwidth applications. Against LTC2378-16#PBF, it delivers verified system-level performance out-of-box but sacrifices front-end flexibility.
Availability
ADAQ7988BCCZ-RL7 is available at Aetrix Electronics and suitable for automated test equipment, battery-powered instrumentation, and medical instruments requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for ADAQ7988BCCZ-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, serving industrial, automotive, communications, and healthcare markets since 1965.
The ADAQ7988BCCZ-RL7 belongs to Analog Devices' μModule Data Acquisition family - engineered to replace multi-component signal chains with single-package subsystems that guarantee performance, reduce design cycle time, and improve time-to-market for precision measurement systems.
FAQ
What is the maximum sampling rate supported by the ADAQ7988BCCZ-RL7?
The ADAQ7988BCCZ-RL7 supports a maximum throughput of 500 kSPS under all specified conditions. This is a hard limit defined by its internal SAR conversion architecture and acquisition timing - attempting higher rates results in incomplete sampling and invalid data. The ADAQ7988BCCZ-RL7 achieves this rate with 16-bit no-missing-codes resolution and 91.5 dB SNR at 10 kHz input frequency.
Does the ADAQ7988BCCZ-RL7 require external passive components for basic operation?
No - the ADAQ7988BCCZ-RL7 integrates all critical passive components required for specified performance, including precision RC networks for ADC driver compensation and reference decoupling. Only four external capacitors (VDD, V+, V−, and REF bypass) and optional feedback resistors (for non-unity gain) are needed. This eliminates layout-dependent tuning and ensures datasheet performance without iterative board spins.
Can the ADAQ7988BCCZ-RL7 operate from a single 5 V supply?
Yes - the ADAQ7988BCCZ-RL7 supports single-supply operation with VDD = V+ = 5 V, V− = 0 V, and VREF = 3.3 V. In this configuration, it maintains 16-bit resolution, ±8 ppm typical INL, and 88.7 dB SNR at 10 kHz. Input common-mode range shifts to 0.15 V to VREF, and ADC driver slew rate reduces to 31 V/µs - sufficient for most DC and low-frequency AC applications.
How does the power-down functionality work on the ADAQ7988BCCZ-RL7?
The ADAQ7988BCCZ-RL7 features three independent power-down pins: PD_AMP disables the ADC driver (reducing current by ~1.6 mA), PD_REF disables the reference buffer (~0.5 mA saved), and PD_LDO disables the internal LDO regulator (~1.2 mA saved). Each has defined voltage thresholds (e.g., PD_AMP <2.2 V = off) and sub-µs turn-on times (2–7.25 µs), enabling precise burst-mode acquisition with minimal wake-up latency.
What is the thermal performance of the ADAQ7988BCCZ-RL7 in a standard PCB layout?
The ADAQ7988BCCZ-RL7 has a θJA of 65°C/W on a 4-layer JEDEC-standard board. With 16.5 mW typical power dissipation at 500 kSPS, junction temperature rise above ambient is ~1.1°C - well within safe limits. For high-density layouts, the exposed thermal pad (pin 25) must be soldered to a solid copper pour with ≥6 thermal vias (0.3 mm diameter, 1.2 mm pitch) to maintain TJ <125°C at +85°C ambient.
ADAQ7988BCCZ-RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- µModule®
- Package/Case:
- 24-FLGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 500k
- Number of Inputs:
- 1
- Input Type:
- Pseudo-Differential
- Data Interface:
- MICROWIRE™, QSPI™, Serial, SPI™
- Configuration:
- ADC
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External
- Voltage - Supply, Analog:
- 3.7V ~ 10V
- Voltage - Supply, Digital:
- 3.5V ~ 10V
- Features:
- -
- Operating Temperature:
- -55°C ~ 125°C
- Supplier Device Package:
- 24-LGA (5x4)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADAQ7988BCCZ-RL7 FAQ
1.How can I place an order for ADAQ7988BCCZ-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADAQ7988BCCZ-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 ADAQ7988BCCZ-RL7 reliable?
The price and inventory of ADAQ7988BCCZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADAQ7988BCCZ-RL7 is usually 5 days.
3.What payment methods are accepted for ADAQ7988BCCZ-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADAQ7988BCCZ-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADAQ7988BCCZ-RL7?
ADAQ7988BCCZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADAQ7988BCCZ-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 ADAQ7988BCCZ-RL7?
For technical support, including ADAQ7988BCCZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADAQ7988BCCZ-RL7 requirements.
6.How does Aetrix verify that ADAQ7988BCCZ-RL7 is sourced from the original manufacturer or authorized distributors?
All ADAQ7988BCCZ-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 ADAQ7988BCCZ-RL7 meets industry standards.
7.What is the process for return or replacement of ADAQ7988BCCZ-RL7?
All ADAQ7988BCCZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADAQ7988BCCZ-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 ADAQ7988BCCZ-RL7 part is unused and in its original packaging.
Return procedure for ADAQ7988BCCZ-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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