Analog Devices AD4000 | Demoboard EVAL-AD4000FMCZ

Beschreibung

The AD4001 is a low noise, low power, high speed, 16-bit, precision successive approximation register (SAR) analog-to-digital converters (ADCs). The AD4001 offers a 2 MSPS throughput. It incorporates ease of use features that reduce signal chain power consumption, reduce signal chain complexity, and enable higher channel density. The high-Z mode, coupled with a long acquisition phase, eliminates the need for a dedicated high power, high speed ADC driver, thus broadening the range of low power precision amplifiers that can drive these ADCs directly, while still achieving optimum performance. The input span compression feature enables the ADC driver amplifier and the ADC to operate off common supply rails without the need for a negative supply while preserving the full ADC code range. The low serial peripheral interface (SPI) clock rate requirement reduces the digital input/output power consumption, broadens processor options, and simplifies the task of sending data across digital isolation.

Eigenschaften

• Throughput: 2 MSPS/1 MSPS/500 kSPS options
• INL: ±1.0 LSB maximum
• Guaranteed 16-bit, no missing codes
• Low power
• 4.9 mW/MSPS, 2.5 mW at 500 kSPS, VDD only
• 7 mW/MSPS, 70 μW at 10 kSPS, 14 mW at 2 MSPS, total
• SNR: 93 dB typical at fIN = 1 kHz, 90 dB typical at fIN = 100 kHz
• Oversampled SNR
• 96 dB at 1.0 MSPS, OSR = 2
• 123 dB at 1.9 kSPS, OSR = 1024
• THD: −115 dB typical at fIN = 1 kHz, VREF = 5 V; −95 dB typical at fIN = 100 kHz
• SINAD: 82 dB at fIN = 1 MHz
• Easy Drive
• Greatly reduced input kickback
• Input current reduced to 0.4 μA/MSPS
• Long acquisition phase, ≥79% of cycle time at 1 MSPS
• Input span compression for single-supply operation
• Fast conversion time allows low SPI clock rates
• Input overvoltage clamp protection sinks up to 50 mA
• Pseudo differential input range
• 0 V to VREF with VREF from 2.4 V to 5.1 V
• Single 1.8 V supply operation with 1.71 V to 5.5 V logic interface
• First conversion accurate
• SPI-/QSPI-/MICROWIRE-/DSP-compatible serial interface
• Ability to daisy-chain multiple ADCs
• Guaranteed operation: −40°C to +125°C
• 10-lead packages: 3 mm × 3 mm LFCSP, 3 mm × 4.90 mm MSOP
• Pin compatible with AD4003/AD4007/AD4011 family

Typische Anwendungen

• Medical equipment
• Automatic test equipment
• Battery-powered equipment
• Precision data acquisition systems
• Machine automation

Weiterführende Informationen

• Datenblatt
• Produktseite des IC-Herstellers