Overview
The MAX1118AUT+T is a low-power, 8-bit, dual-channel analog-to-digital converter (ADC) designed by Maxim Integrated, now part of Analog Devices Inc. This device is optimized for low-power applications and features an internal track/hold (T/H) voltage reference, clock, and a serial interface compatible with SPI, QSPI, and MICROWIRE protocols.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Supply Voltage (VDD) | 2.7 | 5.5 | V | ||
| Power Consumption at 100ksps | 135 | 190 | µA | ||
| Resolution | 8 | Bits | |||
| Sampling Rate | 100 | ksps | |||
| Internal Reference Voltage | 1.0 | VDD | V | ||
| Relative Accuracy (INL) | ±1 | LSB | |||
| Differential Nonlinearity (DNL) | ±1 | LSB | |||
| Offset Error | ±0.5 | LSB | |||
| Gain Error | ±5 | %FSR | |||
| Signal-to-Noise Plus Distortion (SINAD) | 25kHz sinewave input, VIN = VREF(pp), fSCLK = 5MHz, fsample = 100ksps, RIN = 100Ω | 48 | dB | ||
| Total Harmonic Distortion (THD) | 25kHz sinewave input, VIN = VREF(pp), fSCLK = 5MHz, fsample = 100ksps, RIN = 100Ω | -69 | dB | ||
| Spurious-Free Dynamic Range (SFDR) | 25kHz sinewave input, VIN = VREF(pp), fSCLK = 5MHz, fsample = 100ksps, RIN = 100Ω | 66 | dB |
Key Features
- Single supply operation: +2.7V to +5.5V
- Internal track/hold (T/H) and voltage reference
- Internal clock and SPI/QSPI/MICROWIRE-compatible serial interface
- Low power consumption: 135µA at 100ksps
- Automatic power-down mode reducing supply current to <1µA
- Small 8-pin SOT23 package
- Analog input range: 0 to VREF
Applications
- Low-power, handheld portable devices
- System diagnostics
- Battery-powered test equipment
- Solar-powered remote systems
- Receive signal strength indicators
- 4mA to 20mA powered remote data acquisition systems
Q & A
- What is the resolution of the MAX1118AUT+T ADC?
The MAX1118AUT+T has an 8-bit resolution.
- What is the supply voltage range for the MAX1118AUT+T?
The supply voltage range is from +2.7V to +5.5V.
- What is the typical power consumption of the MAX1118AUT+T at 100ksps?
The typical power consumption is 135µA at 100ksps.
- Does the MAX1118AUT+T have an internal voltage reference?
Yes, the MAX1118AUT+T can use an internal voltage reference or an externally applied reference ranging from 1V to VDD.
- What is the sampling rate of the MAX1118AUT+T?
The MAX1118AUT+T can perform conversions up to 100ksps using an internal clock.
- What is the package type of the MAX1118AUT+T?
The MAX1118AUT+T is available in an 8-pin SOT23 package.
- Does the MAX1118AUT+T support automatic power-down?
Yes, the MAX1118AUT+T features an automatic shutdown mode that reduces supply current to <1µA when not in use.
- What are the key applications of the MAX1118AUT+T?
The MAX1118AUT+T is used in low-power handheld devices, system diagnostics, battery-powered test equipment, solar-powered remote systems, and more.
- How does the MAX1118AUT+T interface with other devices?
The MAX1118AUT+T has a 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE devices.
- What is the analog input range of the MAX1118AUT+T?
The analog input range is from 0 to VREF.
