Analog Devices Inc. AD4001/AD4005 16-Bit Differential SAR ADCs
Analog Devices Inc. AD4001/AD4005 16-Bit Differential Successive Approximation Register (SAR) ADCs feature low noise, low power, and high speed. The AD4001 ADCs offer a 2MSPS throughput, and the AD4005 ADCs offer a 1MSPS throughput. These 16-bit SAR ADCs operate from a 1.8V single-supply voltage with a 1.71V to 5.5V logic interface. The AD4001/AD4005 ADCs feature a long acquisition phase, input span compression, high-Z mode, input overvoltage clamp circuit, and fast conversion time, allowing low SPI clock rates.
The AD4001/AD4005 ADCs are compatible with 1.8V, 2.5V, 3V, and 5V logic using the separate VIO supply. These 16-bit ADCs offer the ability to daisy-chain multiple ADCs and busy indicators. The ADCs are available in 10-lead 3mm x 3mm LFCSP and 3mm x 4.90mm MSOP packages and operate in a -40°C to +125°C temperature range. Typical applications include battery-powered equipment, precision data acquisition systems, automatic test equipment, and machine automation.
Features
- Throughput:
- 2MSPS for AD4001
- 1MSPS for AD4005
- Integral Non-Linearity (INL): ±0.4LSB maximum
- Guaranteed 16-bit no missing codes
- Low power:
- 9.5mW at 2MSPS and 4.9mW at 1MSPS (VDD only)
- 80μW at 10kSPS and 16mW at 2MSPS (total)
- Ease of use features reduce system power and complexity:
- Input overvoltage clamp circuit
- Reduced nonlinear input charge kickback
- High-Z mode
- Long acquisition phase
- Input span compression
- Fast conversion time allows low SPI clock rates
- SPI-programmable modes, read/write capability, and status word
- Differential analog input range: ±VREF: 0V to VREF with VREF from 2.4V to 5.1V
- Single 1.8V supply operation with 1.71V to 5.5V logic interface
- SAR architecture offers no latency/pipeline delay and a valid first conversion
- First accurate conversion
- -40°C to +125°C operating temperature range
- SPI-/QSPI-/MICROWIRE-/DSP-compatible serial interface
- Ability to daisy-chain multiple ADCs and busy indicators
- 10-lead package options:
- 3mm × 3mm LFCSP
- 3mm × 4.90mm MSOP
Applications
- Automatic test equipment
- Machine automation
- Medical equipment
- Battery-powered equipment
- Precision data acquisition systems
Functional block Diagram
Additional resource
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