Overview
The MAX1177BCUP+ is a 16-bit, low-power, successive-approximation analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is designed for high-performance, battery-powered, data-acquisition applications. It operates from a single +4.75V to +5.25V analog supply and features a separate digital supply input for direct interface with +2.7V to +5.25V digital logic. The MAX1177BCUP+ is notable for its automatic power-down, factory-trimmed internal clock, and byte-wide parallel interface, making it ideal for industrial process control, instrumentation, and medical applications.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 16 |
| Sampling Rate | 135 ksps |
| Analog Input Voltage Range | 0 to +10V |
| Analog Supply Voltage | +4.75V to +5.25V |
| Digital Supply Voltage | +2.7V to +5.25V |
| Power Consumption (External Reference) | 26.5 mW at 135 ksps |
| Power Consumption (Internal Reference) | 31 mW at 135 ksps |
| AutoShutdown Current | 0.4 mA at 10 ksps |
| Operating Temperature Range | -40°C to +85°C (extended), 0°C to +70°C (commercial) |
| Package | 20-pin TSSOP |
| Reference Type | External, Internal (+4.096V) |
| Integral Nonlinearity (INL) | ±3 LSB |
| Differential Nonlinearity (DNL) | ±1 LSB |
Key Features
- Byte-wide parallel interface for high-speed data transfer
- Automatic power-down feature (AutoShutdown) to reduce power consumption
- Factory-trimmed internal clock for precise timing
- Single +4.75V to +5.25V analog supply voltage
- Separate digital supply input for direct interface with +2.7V to +5.25V digital logic
- Low supply current: 2.9 mA (external reference), 3.8 mA (internal reference), and 5 µA in AutoShutdown mode
- Small footprint in a 20-pin TSSOP package
- Excellent AC performance (THD = -100 dB) and DC accuracy
Applications
- High-performance, battery-powered data-acquisition systems
- Industrial process control and instrumentation
- Medical applications requiring high accuracy and low power consumption
- Temperature sensing and monitoring
- I/O modules and precision instrumentation
Q & A
- What is the resolution of the MAX1177BCUP+ ADC?
The MAX1177BCUP+ is a 16-bit analog-to-digital converter.
- What is the sampling rate of the MAX1177BCUP+?
The MAX1177BCUP+ has a sampling rate of 135 ksps.
- What is the analog input voltage range of the MAX1177BCUP+?
The analog input voltage range is from 0 to +10V.
- What are the power supply requirements for the MAX1177BCUP+?
The device operates from a single +4.75V to +5.25V analog supply and +2.7V to +5.25V digital supply.
- How much power does the MAX1177BCUP+ consume?
It consumes no more than 26.5 mW at 135 ksps with an external reference and 31 mW with the internal reference. In AutoShutdown mode, it reduces to 0.4 mA at 10 ksps.
- What is the operating temperature range of the MAX1177BCUP+?
The device is fully specified over the -40°C to +85°C extended temperature range and the 0°C to +70°C commercial temperature range.
- What package type is the MAX1177BCUP+ available in?
The MAX1177BCUP+ is available in a 20-pin TSSOP package.
- What are the key applications of the MAX1177BCUP+?
Key applications include high-performance data-acquisition systems, industrial process control, instrumentation, medical applications, temperature sensing, and I/O modules.
- Does the MAX1177BCUP+ have an internal reference voltage?
Yes, the MAX1177BCUP+ has an internal +4.096V reference voltage option.
- What is the integral nonlinearity (INL) and differential nonlinearity (DNL) of the MAX1177BCUP+?
The INL is ±3 LSB, and the DNL is ±1 LSB.
