AD7988-5BCPZ - 16-Bit 500kSPS SAR ADC | Analog Devices
MPN: AD7988-5BCPZ β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $15.37 | $15.37 |
| 10 | $14.2 | $142.00 |
| 100 | $12.5 | $1,250.00 |
| 500 | $10.8 | $5,400.00 |
| 1,000 | $9.5 | $9,500.00 |
Drop-in alternatives for AD7988-5BCPZ β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
AD7988-1BCPZ
β Drop-Inβ In Stock
$8.1 / Unit
View Datasheet βAD7988-5BCPZ-RL7
β Drop-Inπ Reference alternative (not in catalog)
AD7988-5BCPZ-RL
β Drop-Inπ Reference alternative (not in catalog)
AD7988-5BCPZ Maximum Ratings & Electrical Characteristics
| Resolution | 16 bit |
| Sampling Rate | 500 kSPS |
| Number of Input Channels | 1 |
| Input Type | Single-Ended |
| Architecture | SAR |
| Supply Voltage - VDD | 2.375 V to 2.625 V |
| Logic Supply Voltage - VIO | 1.8 V to 5 V |
| Operating Temperature Range | -40Β°C to +125Β°C |
| Package | 10-Lead LFCSP-WD (3x3 mm) |
| Mounting Type | Surface Mount |
| Interface | SPI, QSPI, MICROWIRE, DSP |
| Daisy-Chain Support | Yes |
| Power Dissipation | [DATA_NEEDED: Power Dissipation] |
| Reference Voltage | [DATA_NEEDED: Reference Voltage] |
| RoHS Status | Compliant |
AD7988-5BCPZ Pin Configuration
| Pin 1 | VDD β Power supply input |
| Pin 2 | GND β Ground |
| Pin 3 | IN+ β Positive analog input |
| Pin 4 | IN- β Negative analog input |
| Pin 5 | REF β Reference voltage input |
| Pin 6 | VIO β Logic supply voltage |
| Pin 7 | SCK β Serial clock input |
| Pin 8 | SDI β Serial data input (for daisy-chain) |
| Pin 9 | SDO β Serial data output |
| Pin 10 | CNV β Convert input |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
AD7988-5BCPZ is suitable for 6 applications: Battery-Powered Instrumentation, Industrial Process Control, Medical Instrumentation, Data Acquisition Systems, Portable Medical Devices, Test and Measurement.
Battery-Powered Instrumentation
The AD7988-5BCPZ's ultra-low power consumption and 500 kSPS sampling rate make it ideal for portable data loggers and handheld test equipment. Its wide operating temperature range ensures reliable operation in field environments. The device's power-down mode further extends battery life in duty-cycled applications, making it a top choice for energy-efficient designs.
Recommended
Industrial Process Control
In industrial automation, the AD7988-5BCPZ provides high-resolution, fast conversion of sensor signals such as temperature, pressure, and flow. Its 16-bit resolution ensures precise measurement, while the 500 kSPS throughput enables real-time monitoring. The device's SPI interface simplifies integration with industrial microcontrollers, and its -40Β°C to +125Β°C range suits harsh factory environments.
Recommended
Medical Instrumentation
The AD7988-5BCPZ is well-suited for portable medical devices such as patient monitors and diagnostic equipment. Its low power consumption is critical for battery-operated devices, and the high resolution ensures accurate readings of physiological signals. The small LFCSP package saves board space, and the wide temperature range supports sterilization processes.
Recommended
Data Acquisition Systems
For general-purpose data acquisition, the AD7988-5BCPZ offers a balance of speed and resolution. Its 500 kSPS rate allows sampling of fast-changing signals, while the 16-bit resolution captures fine details. The device's daisy-chain capability enables multiple channels to be read with minimal wiring, simplifying system design and reducing cost.
Recommended
Portable Medical Devices
The AD7988-5BCPZ is ideal for portable medical devices like glucose meters and pulse oximeters. Its low power consumption extends battery life, and the high resolution ensures accurate readings. The compact package fits small form factors, and the SPI interface connects easily to low-power microcontrollers. The device's wide temperature range ensures reliable operation in various clinical environments.
Recommended
Test and Measurement
In test and measurement equipment, the AD7988-5BCPZ provides accurate digitization of analog signals for analysis. Its high sampling rate and resolution make it suitable for oscilloscopes, spectrum analyzers, and data loggers. The device's low power consumption is beneficial for portable test instruments, and its SPI interface allows easy integration with FPGAs and DSPs.
Recommended
Recommended Products Summary
Engineering reference data for AD7988-5BCPZ β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD7988-1BCPZ | AD7988-5BCPZ-RL7 | ADS8860 |
|---|---|---|---|---|
| Package | 10-Lead LFCSP-WD (3x3 mm) | 10-Lead LFCSP-WD (3x3 mm) | 10-Lead LFCSP-WD (3x3 mm) | 10-Lead VSSOP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Resolution | 16 bit | 16 bit | 16 bit | 16 bit |
| Sampling Rate | 500 kSPS | 100 kSPS | 500 kSPS | 1 MSPS |
| Input Type | Single-Ended | Single-Ended | Single-Ended | Single-Ended |
| Interface | SPI, QSPI, MICROWIRE, DSP | SPI, QSPI, MICROWIRE, DSP | SPI, QSPI, MICROWIRE, DSP | SPI |
| Supply Voltage (VDD) | 2.375 V to 2.625 V | 2.375 V to 2.625 V | 2.375 V to 2.625 V | 2.7 V to 5.5 V |
| Operating Temperature Range | -40Β°C to +125Β°C | -40Β°C to +125Β°C | -40Β°C to +125Β°C | -40Β°C to +125Β°C |
Key Differentiators
- Higher throughput than AD7988-1 (vs AD7988-1BCPZ)
- Ultra-low power consumption (vs ADS8860)
- Wide logic interface range (vs ADS8860)
Design Notes
Ensure that the VDD supply is clean and well-decoupled. Use a 10uF tantalum capacitor in parallel with a 0.1uF ceramic capacitor close to the VDD pin. The VIO supply should also be decoupled with a 0.1uF capacitor. Proper decoupling minimizes noise and ensures accurate conversions.
For optimal performance, separate analog and digital grounds. Use a solid ground plane and place the ADC close to the signal source to minimize trace inductance. Keep the analog input traces short and shielded if necessary. Avoid routing digital signals near the analog input to prevent coupling.
The reference voltage (REF) pin must be driven by a low-impedance source. Use a precision reference like the ADR4520 or a buffer amplifier. Insufficient reference decoupling can cause conversion errors. Also, ensure the analog input is within the specified common-mode range to avoid saturation.
Compliance Information
RoHS compliance is indicated by the 'Z' suffix in the part number. Other compliance details not specified in the provided data.
