Overview
The MAX1241CESA+T is a low-power, 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1240/MAX1241 series, known for their high performance and low power consumption. The MAX1241 operates with a single supply voltage ranging from +2.7V to +5.25V, making it versatile for various applications. It features a successive-approximation ADC with a conversion time of 7.5µs and a fast track/hold time of 1.5µs. The device also includes an on-chip clock and a high-speed, 3-wire serial interface compatible with SPI™, QSPI™, and MICROWIRE™ protocols.
Key Specifications
| Parameter | Min | Typ | Max | Units | Conditions |
|---|---|---|---|---|---|
| Supply Voltage (VDD) | 2.7 | - | 5.25 | V | - |
| Conversion Time | - | 7.5 | - | µs | - |
| Track/Hold Time | - | 1.5 | - | µs | - |
| Sampling Rate | - | 73 | - | ksps | VDD = 3V |
| Power Consumption | - | 37 | - | mW | fSAMPLE = 73ksps, VDD = 3V |
| Shutdown Current | - | 2 | - | µA | - |
| Input Type | - | Single-Ended | - | - | - |
| Architecture | - | SAR (Successive Approximation Register) | - | - | - |
| Signal to Noise Ratio (SNR) | - | 70 | - | dB | - |
| Operating Temperature | -40 | - | 85 | °C | - |
Key Features
- Low power consumption: 37mW at 73ksps sampling rate with VDD = 3V, and a shutdown mode with 2µA current.
- High-speed 3-wire serial interface compatible with SPI™, QSPI™, and MICROWIRE™ protocols.
- Successive-approximation ADC with a conversion time of 7.5µs and a fast track/hold time of 1.5µs.
- On-chip clock and no external hold capacitor required for the track/hold circuitry.
- Internal reference for MAX1240, while MAX1241 requires an external reference.
- Available in 8-pin PDIP and SO packages.
Applications
The MAX1241CESA+T is ideal for various applications requiring low power consumption and high performance. These include:
- Remote sensor applications.
- Data acquisition systems.
- Circuits with demanding power consumption and space requirements.
Q & A
- What is the supply voltage range for the MAX1241CESA+T?
The supply voltage range for the MAX1241CESA+T is from +2.7V to +5.25V. - What is the conversion time of the MAX1241CESA+T?
The conversion time of the MAX1241CESA+T is 7.5µs. - What is the track/hold time of the MAX1241CESA+T?
The track/hold time of the MAX1241CESA+T is 1.5µs. - What is the maximum sampling rate of the MAX1241CESA+T?
The maximum sampling rate of the MAX1241CESA+T is 73ksps. - What is the power consumption of the MAX1241CESA+T at maximum sampling rate?
The power consumption of the MAX1241CESA+T is 37mW at 73ksps with VDD = 3V. - Does the MAX1241CESA+T require an external reference voltage?
Yes, the MAX1241CESA+T requires an external reference voltage. - What types of serial interfaces are supported by the MAX1241CESA+T?
The MAX1241CESA+T supports SPI™, QSPI™, and MICROWIRE™ serial interfaces. - What are the available package types for the MAX1241CESA+T?
The MAX1241CESA+T is available in 8-pin PDIP and SO packages. - What is the signal to noise ratio (SNR) of the MAX1241CESA+T?
The signal to noise ratio (SNR) of the MAX1241CESA+T is 70 dB. - What is the operating temperature range of the MAX1241CESA+T?
The operating temperature range of the MAX1241CESA+T is from -40°C to 85°C.
