Overview
The MAX11198ATE+ is a part of the MAX11192/MAX11195/MAX11198 family of dual-channel Successive Approximation Register (SAR) Analog-to-Digital Converters (ADCs) produced by Analog Devices Inc./Maxim Integrated. These ADCs are designed for high-performance applications requiring simultaneous sampling at high speeds. The MAX11198ATE+ specifically offers 16-bit resolution and operates at a sampling rate of up to 2 million samples per second (Msps). It features differential inputs, an integrated reference, and an SPI-compatible serial interface with a dual DOUT bus. The device is packaged in a compact 16-pin, 3mm x 2mm ultra TDFN package, making it suitable for space-constrained designs. It operates over an extended industrial temperature range of -40°C to +125°C and is powered by a supply voltage ranging from 3.0V to 5.25V.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|---|
| Resolution | N | - | 16 Bits | - | - | - |
| Analog Supply Voltage | AVDD | - | 3.0 | 5.0 | 5.25 | V |
| Interface Supply Voltage | OVDD | - | 1.7 | 3.6 | - | V |
| Analog Supply Current | I(AVDD) | - | 5.5 | 6.2 | - | mA |
| Interface Supply Current | I(OVDD) | DOUT load: CLOAD = 10pF | 0.75 | 1 | - | mA |
| Sampling Rate | fSAMPLE | - | - | 2 Msps | - | - |
| Signal-to-Noise Ratio (SNR) | SNR | 10kHz input | 84 | 84.6 | - | dB |
| Signal-to-Noise And Distortion Ratio (SINAD) | SINAD | 10kHz input | 84.7 | - | - | dB |
| Total Harmonic Distortion (THD) | THD | 10kHz input | -110 | - | - | dB |
Key Features
- Tiny 16-pin, 3mm x 2mm ultra TDFN package
- Up to 2Msps throughput rate
- Two simultaneous-sampling ADC cores
- Differential inputs
- Integrated reference
- SPI-compatible serial interface with dual DOUT bus
- Extended industrial temperature range of -40°C to +125°C
- 50MHz SPI clock capability through FMC connector (in evaluation kits)
- Various sample sizes and sample rates adjustable through evaluation kit GUI
- On-board input buffers: MAX44242 and MAX4432 (unipolar to differential)
- Sync In and Sync Out for coherent sampling
Applications
- Encoders
- Resolvers
- LVDT (Linear Variable Differential Transformer)
- Current sensing in motors
- PLC (Programmable Logic Controllers)
- Monitoring and measuring degrees of rotation or absolute position of the rotor in motors
Q & A
- What is the resolution of the MAX11198ATE+ ADC?
The MAX11198ATE+ offers a 16-bit resolution. - What is the maximum sampling rate of the MAX11198ATE+?
The maximum sampling rate is up to 2 million samples per second (Msps). - What type of package does the MAX11198ATE+ come in?
The device is packaged in a 16-pin, 3mm x 2mm ultra TDFN package. - What is the operating temperature range of the MAX11198ATE+?
The device operates over an extended industrial temperature range of -40°C to +125°C. - Does the MAX11198ATE+ have an integrated reference?
Yes, it has an integrated reference. - What interface does the MAX11198ATE+ use for data output?
The device uses an SPI-compatible serial interface with a dual DOUT bus. - What are some common applications of the MAX11198ATE+?
Common applications include encoders, resolvers, LVDT, current sensing in motors, and PLCs. - How is the MAX11198ATE+ powered?
The device is powered by an analog supply voltage (AVDD) ranging from 3.0V to 5.25V and an interface supply voltage (OVDD) ranging from 1.7V to 3.6V. - What is the purpose of the evaluation kits for the MAX11198ATE+?
The evaluation kits provide a proven design to evaluate the ADC, including an evaluation board and a graphical user interface (GUI) for communicating with the PC through a ZedBoard. - Can the MAX11198ATE+ be used with external resolvers or encoders?
Yes, the evaluation kits are designed to be used with external resolvers or encoders to monitor and measure degrees of rotation or absolute position of the rotor.
