AD4008
16-Bit, 2 MSPS/1 MSPS/500 kSPS, Precision, Pseudo Differential, SAR ADCs
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Features
- Easy Drive expands signal chain flexibility
- High-Z mode significantly reduces signal chain settling requirements
- Fast conversion phase extends the ADC acquisition time
- Input overvoltage protection clamp sinks up to 50 mA
- High performance
- First conversion accurate, no latency or pipeline delay
- Guaranteed 16-bit, no missing codes
- Throughput: 2 MSPS/1 MSPS/500 kSPS options
- INL: ±1.0 LSB maximum
- SNR: 93 dB at fIN = 1 kHz, VREF = 5 V
- THD: −115 dB at fIN = 1 kHz; −95 dB at fIN = 100 kHz
- Pseudo differential input range
- Flexible external reference voltage range (2.4 V to 5.1 V)
- Low power
- Single 1.8 V supply operation with 1.71 V to 5.5 V logic interface
- 2.5 mW at 500 kSPS (VDD only)
- 70 μW at 10 kSPS, 14 mW typical at 2 MSPS (total power)
- SPI-/QSPI-/MICROWIRE-/DSP-compatible serial interface
- 10-lead packages: 3 mm × 3 mm LFCSP, 3 mm × 4.90 mm MSOP
- Guaranteed operation: −40°C to +125°C
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The AD4000/AD4004/AD4008 are high accuracy, high speed, low power, 16-bit, precision successive approximation register (SAR) analog-to-digital converters (ADCs). These ADCs incorporate Easy Drive features, such as high-Z mode and an extended acquisition phase, which provide signal chain architectural flexibility by expanding the range of companion circuitry that can be paired with these ADCs.
Operating from a single power supply, VDD, these ADCs allow the reference voltage, VREF, to be applied externally and set independently of the supply voltage. With fast device throughput up to 2 MSPS, the AD4000/AD4004/AD4008 can accurately capture high-frequency signals and implement oversampling techniques to alleviate the challenges associated with antialias filter designs. Additionally, the power consumption of these ADCs scales linearly with throughput.
The AD4000/AD4004/AD4008 eliminate the need for a negative supply to the ADC driver amplifier by employing input span compression, while preserving access to the full ADC code range. Furthermore, the input overvoltage clamp protects the ADC inputs against overvoltage events, minimizing disturbances on the reference pin and eliminating the need for external protection diodes.
By reducing the serial peripheral interface (SPI) clock rate requirements, the AD4000/AD4004/AD4008 reduce digital input and output power consumption, broaden digital host options, and simplify the task of sending data across digital isolation. The SPI-compatible serial user interface supports 1.8 V, 2.5 V, 3.3 V, and 5 V logic by using the separate VIO logic supply.
APPLICATIONS
- Automated test equipment
- Machine automation
- Medical equipment
- Battery-powered equipment
- Precision data acquisition systems
- Instrumentation and control systems
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AD4008
Documentation
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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
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| AD4008BCPZ-RL7 |
10-Lead LFCSP (3mm x 3mm)
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| AD4008BRMZ |
10-Lead MSOP
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| AD4008BRMZ-RL7 |
10-Lead MSOP
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- AD4008BCPZ-RL7
- Pin/Package Drawing
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10-Lead LFCSP (3mm x 3mm)
- Documentation
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HTML
Material Declaration
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HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
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Ultra Librarian
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SamacSys
- AD4008BRMZ
- Pin/Package Drawing
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10-Lead MSOP
- Documentation
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HTML
Material Declaration
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HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
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Ultra Librarian
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SamacSys
- AD4008BRMZ-RL7
- Pin/Package Drawing
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10-Lead MSOP
- Documentation
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HTML
Material Declaration
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HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
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Ultra Librarian
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SamacSys
Software & Part Ecosystem
Device Drivers
FPGA/HDL
Looking for Evaluation Software? You can find it here
| Parts | Product Life Cycle | Description | ||
|---|---|---|---|---|
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Accelerometers1 |
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RECOMMENDED FOR NEW DESIGNS |
Low-Noise, Low-Drift, Low-Power, 3-Axis MEMS Accelerometers |
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General Purpose Op Amps1 |
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PRODUCTION |
Low Power, 3.6 MHz, Low Noise, Rail-to-Rail Output, Operational Amplifiers |
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High Speed Op Amps (Bandwidth ≥ 50MHz)1 |
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RECOMMENDED FOR NEW DESIGNS |
3.1 nV/√Hz, 1 mA, 180 MHz, Rail-to-Rail Input/Output Amplifier |
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High Voltage Op Amps ≥12V2 |
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RECOMMENDED FOR NEW DESIGNS |
Low Noise, Precision, Rail-to-Rail Output, JFET Single Op Amp |
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RECOMMENDED FOR NEW DESIGNS |
4 MHz, 7 nV/√Hz, Low Offset and Drift, High Precision Single Amplifier |
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Internal Power Switch Buck Regulators1 |
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PRODUCTION |
50 mA/500 mA, High Efficiency, Ultralow Power Step-Down Regulator |
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Low Noise Op Amps (≤ 10nV/√Hz)1 |
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RECOMMENDED FOR NEW DESIGNS |
1 nV/√Hz, Low Power, Rail-to-Rail Output Amplifiers |
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Low Power Op Amps (≤ 1mA/amp) 2 |
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PRODUCTION |
2.7 V, 800 µA, 80 MHz Rail-to-Rail I/O Single Amplifier |
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RECOMMENDED FOR NEW DESIGNS |
30 V, Low Noise, Rail-to-Rail Input/Output, Low Power Operational Single Amplifier |
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Positive Linear Regulators (LDO)2 |
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RECOMMENDED FOR NEW DESIGNS |
20 V, 200 mA, Low Noise, CMOS LDO Linear Regulator |
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RECOMMENDED FOR NEW DESIGNS |
5.5V Input, 500 mA, Low Quiescent Current, CMOS Linear Regulator with 31 Fixed-output Voltages |
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Precision Op Amps (Vos ≤1mV & TCVos ≤2uV/C)1 |
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RECOMMENDED FOR NEW DESIGNS |
30 V, Micropower, Overvoltage Protection, Rail-to-Rail Input/Output Dual Op Amplifier |
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Series Voltage References11 |
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PRODUCTION |
Ultra-Low-Noise, High-Accuracy 5.0V Voltage Reference |
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PRODUCTION |
Ultra-Low-Noise, High-Accuracy 4.096V Voltage Reference |
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PRODUCTION |
Ultra-Low-Noise, High-Accuracy 3.3V Voltage Reference |
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PRODUCTION |
Ultra-Low-Noise, High-Accuracy 2.5V Voltage Reference |
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PRODUCTION |
Ultralow Noise, LDO XFET® 4.096V Voltage Reference w/Current Sink and Source |
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PRODUCTION |
Ultralow Noise, LDO XFET® 5.0V Voltage Reference w/Current Sink and Source |
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PRODUCTION |
Ultralow Noise, LDO XFET® 2.5V Voltage Reference w/Current Sink and Source |
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PRODUCTION |
Micro-Power, High-Accuracy 5.0V Voltage Reference |
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PRODUCTION |
Micro-Power, High-Accuracy 4.096V Voltage Reference |
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RECOMMENDED FOR NEW DESIGNS |
Micropower, Precision, Auto Qualified 3.3V Voltage Reference |
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RECOMMENDED FOR NEW DESIGNS |
Micropower, Precision, Auto Qualified 2.5V Voltage Reference |
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Single-Ended to Differential Amplifiers1 |
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RECOMMENDED FOR NEW DESIGNS |
Low Power Differential ADC Driver |
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Standard Digital Isolators2 |
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RECOMMENDED FOR NEW DESIGNS |
Robust, Quad Channel Isolator W/ Input Disable & 1 Reverse Channel |
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RECOMMENDED FOR NEW DESIGNS |
Robust, Quad Channel Isolator W/ Output Enable & 1 Reverse Channel |
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Can't find the software or driver you need?
Request a Driver/SoftwareEvaluation Kits 1
EVAL-AD400x-FMCZ
Evaluation Board for the AD4000 Series 16-/18-/20-Bit Precision SAR ADCs
Features and Benefits
- Fully featured evaluation board for 10-lead precision ADCs
- Versatile analog signal conditioning circuitry
- On-board reference, reference buffers, and ADC drivers
- PC software for control and data analysis of time and frequency domain
- System demonstration platform-compatible (SDP-H1)
Product Detail
The AD4000/AD4001/AD4002/AD4003/AD4020 family of evaluation boards enable quick, simplified evaluation of the AD4000 family of 16-/18-/20-bit, precision successive approx-imation register (SAR) analog-to-digital converters (ADCs). The AD4000/AD4001/AD4002/AD4003/AD4020 are low power, 16-bit/18-bit/20-bit, precision SAR ADCs that offer high performance with throughputs up to 2 MSPS (1.8 MSPS for the AD4020). The evaluation board demonstrates the performance of the AD4000/AD4001/AD4002/AD4003/AD4020 family of ADCs and provides a simplified interface for a variety of system applications.
The EVAL-AD4000FMCZ/EVAL-AD4001FMCZ/EVAL-AD4002FMCZ/EVAL-AD4003FMCZ/EVAL-AD4020FMCZ evaluation boards, accessible from the EVAL-AD400x-FMCZ product page, are ideal for use with the Analog Devices, Inc., high speed system demonstration platform (SDP-H1). These evaluation boards interface to the SDP-H1 board via a field-programmable gate array (FPGA) mezzanine card (FMC) low pin count (LPC) connector.
On-board components include a high precision buffered band gap 5.0 V reference (ADR4550), a reference buffer (ADA4807-1), a common-mode buffer (ADA4807-1), a signal conditioning circuit with two op amps (ADA4807-1), and a power supply to derive the necessary voltage levels to supply all voltage needs.
The EVAL-AD4000FMCZ, EVAL-AD4001FMCZ, EVAL-AD4002FMCZ, EVAL-AD4003FMCZ, and EVAL-AD4020FMCZ are populated with the AD4000, AD4001, AD4002, AD4003, and AD4020, respectively. However, these boards can be used to evaluate the performance of the AD4004, AD4005, AD4006, AD4007, AD4008, AD4010, AD4011, AD4021, and AD4022 by limiting the sample rate in the evaluation software to the maximum sample rate of the specific ADC. For example, the AD4000 on the EVAL-AD4000FMCZ can be used to evaluate the performance of the AD4004 if the sample rate is limited to 1 MSPS. See the data sheet of each product for the corresponding evaluation board.
Full descriptions of these products are available in their respective data sheets, which must be consulted when using the corresponding evaluation board. Table 7 shows the models of the AD4000/AD4001/AD4002/AD4003/AD4020 evaluation boards.
Resources
Tools & Simulations 4
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.
To launch ready-to-run LTspice demonstration circuits for this part:
Step 1: Download and install LTspice on your computer.
Step 2: Click on the link in the section below to download a demonstration circuit.
Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.
Lt Spice
Precision ADC Driver Tool
IBIS Model 2
Signal Chain Designer - BETA
