Overview
The MAX1175AEUI+T is a 14-bit, low-power, successive-approximation analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1157/MAX1159/MAX1175 family, known for its high performance and suitability for battery-powered data-acquisition applications. The MAX1175AEUI+T operates from a single +4.75V to +5.25V analog supply voltage and can interface with +2.7V to +5.25V digital logic, making it versatile for various system designs.
The device features excellent AC and DC accuracy, with a signal-to-noise plus distortion (SINAD) of up to 85 dB and total harmonic distortion (THD) of -100 dB. It is available in a 28-pin TSSOP package and is fully specified over the -40°C to +85°C extended temperature range and the 0°C to +70°C commercial temperature range.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|---|
| Resolution | RES | 14 | 14 | 14 | Bits | |
| Analog Supply Voltage | AVDD | 4.75 | 5.25 | 5.25 | V | |
| Digital Supply Voltage | DVDD | 2.7 | 5.25 | V | ||
| Analog Input Voltage Range | VAIN | -5 | +5 | V | ||
| Integral Nonlinearity (INL) | -1 | +1 | LSB | |||
| Differential Nonlinearity (DNL) | -1 | +1 | LSB | |||
| Sampling Rate | fSAMPLE | 135 | ksps | |||
| Power Consumption (External Reference) | 135ksps | 23 | mW | |||
| Power Consumption (Internal Reference) | 135ksps | 29 | mW | |||
| Shutdown Supply Current | ISHDN | 10ksps | 0.4 | mA |
Key Features
- 14-bit resolution with successive-approximation ADC architecture
- Single +4.75V to +5.25V analog supply voltage and +2.7V to +5.25V digital supply voltage
- Analog input voltage range of -5V to +5V
- Low power consumption: 23mW at 135ksps with external reference, 29mW with internal reference
- AutoShutdown™ reduces supply current to 0.4mA at 10ksps
- Excellent AC performance: SINAD up to 85 dB, THD of -100 dB
- DC accuracy: ±1 LSB INL and ±1 LSB DNL
- Byte-wide parallel interface
- Small footprint 28-pin TSSOP package
- Operating temperature range: -40°C to +85°C (extended), 0°C to +70°C (commercial)
Applications
- High-performance, battery-powered data-acquisition systems
- Industrial process control
- Precision instrumentation
- Medical applications
- Temperature sensing and monitoring
- I/O modules
Q & A
- What is the resolution of the MAX1175AEUI+T ADC?
The MAX1175AEUI+T has a 14-bit resolution.
- What is the analog input voltage range of the MAX1175AEUI+T?
The analog input voltage range is -5V to +5V.
- What are the power consumption characteristics of the MAX1175AEUI+T?
The device consumes 23mW at 135ksps with an external reference and 29mW with the internal reference. In AutoShutdown mode, the supply current reduces to 0.4mA at 10ksps.
- What is the operating temperature range of the MAX1175AEUI+T?
The device operates over the -40°C to +85°C extended temperature range and the 0°C to +70°C commercial temperature range.
- What are the key AC performance metrics of the MAX1175AEUI+T?
The device features a SINAD of up to 85 dB and a THD of -100 dB.
- What is the package type of the MAX1175AEUI+T?
The device is available in a 28-pin TSSOP package.
- Can the MAX1175AEUI+T be used in battery-powered applications?
Yes, it is ideal for high-performance, battery-powered data-acquisition applications due to its low power consumption.
- What are some typical applications of the MAX1175AEUI+T?
Typical applications include industrial process control, precision instrumentation, medical applications, and temperature sensing and monitoring.
- Does the MAX1175AEUI+T have an internal voltage reference?
Yes, the device features an internal +4.096V reference, but it can also use an external reference.
- How does the AutoShutdown feature work on the MAX1175AEUI+T?
The AutoShutdown feature reduces the supply current to 0.4mA at 10ksps, significantly lowering power consumption during idle periods.
