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Analog Devices AD4001 | Demoboard EVAL-AD4001FMCZ

Evaluation Board for the AD4000 Series 16-/18-/20-Bit Precision SAR ADCs


TopologyOther Topology
IC revisionE


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.


  • Throughput: 2 MSPS
  • INL: ±0.4 LSB maximum
  • Guaranteed 16-bit no missing codes
  • Low power
  • 9.5 mW at 2 MSPS (VDD only)
  • 80 μW at 10 kSPS
  • 16 mW at 2 MSPS (total)
  • SNR: 96.2 dB typical at 1 kHz, VREF = 5V; 95.5 dB typical at 100 kHz
  • THD: −123 dB typical at 1 kHz, VREF = 5V; −99 dB typical at 100 kHz
  • 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, status word
  • Differential analog input range: ±VREF
  • 0 V to VREF with VREF between 2.4 V to 5.1 V
  • Single 1.8 V supply operation with 1.71 V to 5.5 V logic interface
  • SAR architecture: no latency/pipeline delay, valid first conversion
  • First accurate conversion
  • Guaranteed operation: −40°C to 125°C
  • Serial interface SPI-/QSPI-/MICROWIRE-/DSP-compatible
  • Ability to daisy-chain multiple ADCs and busy indicator
  • 10-lead, 3 mm × 3 mm LFCSP and 10-lead, 3 mm × 4.90 mm MSOP

Typical applications

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


Order Code Data­sheet Simu­lation Downloads Product seriesZ @ 100 MHz
Test Condition ZmaxIR 2
RDC max.
Type Samples
7 files WE-CBF SMT EMI Suppression Ferrite Bead 1000 1100 90 MHz 1000 0.3 High Current
Order Code Data­sheet Simu­lation
Order Code Data­sheet Simu­lation Downloads Product seriesZ @ 100 MHz
Test Condition ZmaxIR 2
RDC max.
Type Samples