Overview
The AD4680BCPZ-RL is a 16-bit, dual simultaneous sampling, high-speed, low-power successive approximation register (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc. This device operates from a 3.0 V to 3.6 V power supply and features a throughput rate of 1 MSPS. It is designed for applications requiring high-speed data acquisition with low power consumption.
The AD4680 is part of the AD4680/AD4681 family, which are pin-compatible, making them versatile for various design needs. The device includes integrated on-chip oversampling blocks to enhance dynamic range and reduce noise at lower bandwidths.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16 bits |
| Throughput Rate | 1 MSPS (AD4680), 500 kSPS (AD4681) |
| Power Supply | 3.0 V to 3.6 V |
| Analog Input Type | Differential |
| Common-Mode Input Voltage | VCM ± VREF/2 |
| Internal Reference | 2.5 V, 10 ppm/°C |
| External Reference Range | 2.5 V to 3.3 V |
| Operating Temperature | −40°C to +125°C |
| Package | 16-Lead LFCSP (3mm x 3mm x 0.75mm) |
| SNR (Typical) | 92.5 dB, VREF = 3.3 V external; 100 dB with 8× OSR |
| INL (Maximum) | 1.5 LSBs |
Key Features
- Dual simultaneous sampling SAR ADCs
- High-speed serial interface
- On-chip oversampling blocks to improve dynamic range and reduce noise
- Resolution boost function with up to 8× oversampling ratio (OSR)
- Wide common-mode input voltage range
- Alert function for monitoring system conditions
- Power-down options for power saving between conversions
- Compatible with 1.8 V, 2.5 V, and 3.3 V interfaces using a separate logic supply
Applications
- Motor control position feedback
- Motor control current sense
- Sonar applications
- Power quality monitoring
- Data acquisition systems
- Erbium doped fiber amplifier (EDFA) applications
- Inphase (I) and quadrature (Q) demodulation
Q & A
- What is the resolution of the AD4680 ADC?
The AD4680 has a resolution of 16 bits.
- What is the throughput rate of the AD4680?
The throughput rate of the AD4680 is 1 MSPS.
- What is the power supply range for the AD4680?
The AD4680 operates from a 3.0 V to 3.6 V power supply.
- What type of analog input does the AD4680 support?
The AD4680 supports differential analog inputs.
- What is the operating temperature range of the AD4680?
The operating temperature range is −40°C to +125°C.
- Does the AD4680 have an internal reference voltage?
Yes, the AD4680 includes a 2.5 V internal reference with 10 ppm/°C drift.
- Can the AD4680 use an external reference voltage?
Yes, an external reference voltage ranging from 2.5 V to 3.3 V can be used.
- What is the package type of the AD4680?
The AD4680 is available in a 16-Lead LFCSP (3mm x 3mm x 0.75mm) package.
- What are some common applications of the AD4680?
Common applications include motor control, sonar, power quality monitoring, data acquisition systems, and EDFA applications.
- Does the AD4680 support oversampling?
Yes, the AD4680 includes on-chip oversampling blocks to improve dynamic range and reduce noise.
