AD4080

RECOMMENDED FOR NEW DESIGNS

20-Bit, 40 MSPS, Differential SAR ADC

Data Sheet (Rev. A) Product Selection Table
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Part Details

  • High performance
    • Throughput: 40 MSPS, 46.25 ns conversion latency
    • INL: ±4 ppm (typical), ±8 ppm (maximum)
    • SNR/THD
      • 93.6 dB (typical)/−110 dB (typical) at fIN = 1 kHz
      • 93.5 dB (typical)/−104 dB (typical) at fIN = 1 MHz
    • Noise spectral density: −167.6 dBFS/Hz
    • 20-bit resolution, no missing codes
  • Low power
    • 79.3 mW typical at 40 MSPS with −0.5 dBFS sine-wave input
  • Easy Drive, fully differential Input
    • 6 V p-p differential input range
    • Continuous signal acquisition
    • Linearized, 5 μA/MSPS input current
  • Integrated, low-drift reference buffer and decoupling
  • Integrated VCM generation
  • Digital features and data interface
    • Conversion result FIFO, 16K sample depth
    • Digital averaging filter with up to 210 decimation
  • SPI configuration
  • Configurable data interface
    • Single lane, DDR, serial LVDS, 800 MBPS per lane
    • Dual lane, DDR, serial LVDS, 400 MBPS per lane
    • Single/quad lane SPI data interface
  • Package
    • 49-ball, 5 mm x 5 mm CSP_BGA, 0.65 mm pitch
    • Integrated supply decoupling capacitors
  • Operating temperature range: −40°C to +85°C
AD4080
20-Bit, 40 MSPS, Differential SAR ADC
AD4080 Functional Block Diagram AD4080 Pin Configuration
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Documentation

Data Sheet 1

User Guide 1

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Software Resources

Device Drivers 1

Hardware Ecosystem

Parts Product Life Cycle Description
Clock Distribution Devices 1
AD9508
RECOMMENDED FOR NEW DESIGNS 1.65 GHz Clock Fanout Buffer with Output Dividers and Delay Adjust
Fully Differential Amplifiers 1
ADA4945-1
RECOMMENDED FOR NEW DESIGNS High Speed, ±0.1 µV/˚C Offset Drift, Fully Differential ADC Driver
High Voltage Op Amps ≥12V 1
ADA4899-1
PRODUCTION Unity-Gain Stable, Ultralow Distortion, 1 nV/√Hz Voltage Noise, High Speed Op Amp
Integer-N PLL 1
ADF4350
PRODUCTION Wideband Synthesizer with Integrated VCO
Micropower Buck Regulators 1
LT8604/
LT8604C
High Efficiency 42V/120mA Synchronous Bucks
Positive Linear Regulators (LDO) 4
LT3045
RECOMMENDED FOR NEW DESIGNS 20V, 500mA, Ultralow Noise, Ultrahigh PSRR Linear Regulator
ADP150
PRODUCTION Ultralow Noise, 150 mA CMOS Linear Regulator
MAX38912
RECOMMENDED FOR NEW DESIGNS 11µVRMS Low-Noise, 500mA LDO Linear Regulators with Low-Power Mode
LT3045-1
RECOMMENDED FOR NEW DESIGNS 20V, 500mA, Ultralow Noise, Ultrahigh PSRR Linear Regulator with VIOC Control
Series Voltage References 2
LTC6655
PRODUCTION 0.25ppm Noise, Low Drift Precision References
ADR4530
PRODUCTION Ultra-Low-Noise, High-Accuracy 3.0V Voltage Reference
Single-Ended to Differential Amplifiers 1
ADA4930-1
RECOMMENDED FOR NEW DESIGNS

Ultralow Noise Drivers for Low Voltage ADCs
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Tools & Simulations

LTspice 1

Models for the following parts are available in LTspice:

  • AD4080

IBIS Model 1

LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

eval board
schematic 1
schematic 2
schematic 3
EVAL-AD4080-FMC

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Features and Benefits

  • Full featured evaluation board for the AD4080/AD4081/AD4084
  • Analysis | Control | Evaluation (ACE) Software plug-in available for device configuration, data capture, and performance evaluation
  • Flexible analog front end
  • On-board power solution and precision reference
  • On-board clock generation circuitry with sampling frequency control via the ACE Software
  • FMC compatible

Product Details

The EVAL-AD4080-FMCZ is designed to demonstrate the performance of the AD4080/AD4081/AD4084 analog‐to‐digital converter (ADC) and provide access to a limited set of features from the chip in the ACE Software environment. The EVAL-AD4080-FMCZ evaluation kit supports the following AD4080/AD4081/AD4084 features:

  • Low voltage digital signaling (LVDS) data output interface.
  • ADC configuration via serial peripheral interface (SPI).
  • Internal or external generation of 1.1 V regulated supply rails.
  • Sampling rate capability between 1.25 MSPS and up to 40 MSPS, depending on the specific ADC.

The EVAL-AD4080-FMCZ evaluation board was designed for use with the Digilent ZedBoard via the field programmable gate array (FPGA) mezzanine card (FMC) connector. The ZedBoard uses a Xilinx Zynq7000 system on chip (SoC) that runs Analog Devices, Inc., Kuiper Linux and LIBIIO included on the SD card supplied in the evaluation board kit to facilitate communication with the EVALAD4080-FMCZ, enabling ADC configuration and data capture. The ZedBoard also provides the communication link to the host PC and the ACE Software plug-in.

The AD4080/AD4081/AD4084 that is physically mounted on the board can be evaluated with any sampling frequency range from 1.25MHz to 40MHz. However, performance of the AD4081 and AD4084 can also be evaluated using this board by selecting the sampling frequency to 20MHz. Note, results for AD4081 and AD4084 should only be taken as indications of the SNR rather than the actual measurement, nevertheless, measured SNR for the AD4081 wont be worse than expected one. This evaluation board - EVAL-AD4080-FMCZ will only serve as a temporary evaluation solution for the AD4084. For proper evaluation of the aD4084 there will be a designated evaluation board in near future.

eval board
schematic 4
schematic 5
schematic 6
EVAL-AD4080ARDZ

Evaluating the AD4080/AD4081/AD4084 Fast Precision 20-Bit/16-Bit, 40MSPS/20MSPS, Differential SAR ADC

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Features and Benefits

  • Full featured evaluation board for the AD4080/AD4081/AD4084
    with power solution
  • Single differential channel and common-mode input available through board SMA connectors
  • The Analysis | Control | Evaluation (ACE) Software plugin is available for device configuration, data capture, and performance evaluation
  • Flexible analog front end (two stages)
  • Out-of-box evaluation experience with the SDP-K1 demonstration platform (EVAL-SDP-CK1Z)
  • On-board low noise power solution and 3.0V precision reference
  • On-board clock generation circuitry with sampling frequency selection via ACE software
  • Compatible with Arduino Uno form factor (Rev3 form factor)

Product Details

The EVAL-AD4080ARDZ evaluation board enables quick and easy evaluation of the performance and features of the AD4080/AD4081/AD4084. The EVAL-AD4080ARDZ is designed to demonstrate the performance of the AD4080/AD4081/AD4084 features in the ACE software environment. The EVAL-AD4080ARDZ evaluation kit supports the following AD4080/AD4081/AD4084 features:

  • Serial peripheral interface (SPI) complementary metal-oxide semiconductor (CMOS) data output interface (read from first-in first out (FIFO))
  • Analog-to-digital converter (ADC) configuration via SPI
  • Internal or external generation of 1.1V regulated supply rails (external by default)
  • Sampling rate capability 40/20/10MSPS (software selectable in ACE)

The EVAL-AD4080ARDZ evaluation board is designed for use with the system demonstration platform (SDP-K1) board to facilitate communication with the AD4080/AD4081/AD4084, enabling ADC configuration and data capture. The SDP-K1 controller board also provides the communication link to the host PC and the ACE software plugin. The primary controller board for the EVAL-AD4080ARDZ evaluation board is the SDP-K1. The EVAL-AD4080ARDZ evaluation board conforms to the Arduino Uno Shield mechanical and electrical standards to interface with the SDP-K1.

The EVAL-AD4080ARDZ evaluation solution includes the AD4080/AD4081/AD4084 industrial input and output (IIO) firmware application drivers for device configuration and ADC data capture. It also includes the AD4080/AD4081/AD4084 ACE plugin graphical interfaces (GUIs) for performance evaluations.

For full details, see the AD4080/AD4081/AD4084 data sheets, which must be used in conjunction with this user guide when using the EVAL-AD4080ARDZ.
EVAL-AD4080-FMC
EVAL-AD4080-FMCZ Angle View EVAL-AD4080-FMCZ Bottom View EVAL-AD4080-FMCZ Top View
EVAL-AD4080ARDZ
Evaluating the AD4080/AD4081/AD4084 Fast Precision 20-Bit/16-Bit, 40MSPS/20MSPS, Differential SAR ADC
EVAL-AD4080ARDZ Board Photo Angle View EVAL-AD4080ARDZ Board Photo Top View EVAL-AD4080ARDZ Board Photo Bottom View

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