Overview
The LTC1407HMSE#PBF is a high-performance, serial 12-bit/14-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is part of the LTC1407 series, known for its simultaneous sampling capability and low power consumption. It features two differential inputs that are sampled simultaneously at a rate of 1.5Msps per channel, making it suitable for high-speed, portable applications. The ADC operates from a single 3V supply, drawing only 4.7mA, and includes a Sleep shutdown feature that reduces power consumption to 10µW.
Key Specifications
| Parameter | LTC1407 | LTC1407A | LTC1407-1 | LTC1407A-1 |
|---|---|---|---|---|
| Resolution | 12 bits | 14 bits | 12 bits | 14 bits |
| INL (typ/max) | 0.25 LSB typ / 2 LSB max | 0.5 LSB typ / 4 LSB max | 0.25 LSB typ / 2 LSB max | 0.5 LSB typ / 4 LSB max |
| Input Range | 0V - 2.5V | 0V - 2.5V | ±1.25V | ±1.25V |
| Sampling Rate | 1.5Msps per channel | 1.5Msps per channel | 1.5Msps per channel | 1.5Msps per channel |
| Supply Voltage | 3V | 3V | 3V | 3V |
| Power Consumption | 4.7mA (active), 10µW (shutdown) | 4.7mA (active), 10µW (shutdown) | 4.7mA (active), 10µW (shutdown) | 4.7mA (active), 10µW (shutdown) |
| Package | 10-Lead MSOP | 10-Lead MSOP | 10-Lead MSOP | 10-Lead MSOP |
Key Features
- Simultaneous Sampling: The LTC1407 features two differential inputs that are sampled simultaneously on the rising edge of the CONV signal, ensuring synchronized data acquisition.
- High Speed: The ADC operates at a sampling rate of 1.5Msps per channel, making it suitable for high-speed applications.
- Low Power Consumption: The device draws only 4.7mA from a single 3V supply and includes a Sleep shutdown feature that reduces power consumption to 10µW.
- High Accuracy: The ADC offers high accuracy with an INL (Integral Non-Linearity) of 0.25 LSB typ / 2 LSB max for the LTC1407 and 0.5 LSB typ / 4 LSB max for the LTC1407A.
- Common Mode Rejection: The 80dB common mode rejection ratio helps eliminate ground loops and common mode noise by measuring signals differentially from the source.
- Compact Package: The device comes in a tiny 10-lead MSOP package, making it ideal for space-constrained applications.
Applications
- Portable and Battery-Powered Devices: The low power consumption and compact package make the LTC1407 suitable for portable and battery-powered devices.
- High-Speed Data Acquisition Systems: The simultaneous sampling and high-speed operation make it ideal for applications requiring synchronized data acquisition.
- Medical Devices: The high accuracy and low noise characteristics are beneficial in medical devices that require precise signal measurement.
- Industrial Automation: The device can be used in industrial automation for high-speed data acquisition and control systems.
- Aerospace and Defense: The combination of high speed, low power, and high accuracy makes it suitable for various aerospace and defense applications.
Q & A
- What is the resolution of the LTC1407 and LTC1407A ADCs?
The LTC1407 has a resolution of 12 bits, while the LTC1407A has a resolution of 14 bits.
- What is the sampling rate of the LTC1407?
The LTC1407 samples at a rate of 1.5Msps per channel.
- What is the power consumption of the LTC1407 in active and shutdown modes?
The LTC1407 consumes 4.7mA in active mode and 10µW in shutdown mode.
- What is the common mode rejection ratio of the LTC1407?
The LTC1407 has an 80dB common mode rejection ratio.
- What type of package does the LTC1407 come in?
The LTC1407 comes in a 10-lead MSOP package.
- What is the input range for the LTC1407 and LTC1407A?
The input range for the LTC1407 and LTC1407A is 0V to 2.5V for unipolar inputs and ±1.25V for bipolar inputs (LTC1407-1 and LTC1407A-1).
- How many differential inputs does the LTC1407 have?
The LTC1407 has two separate differential inputs that are sampled simultaneously.
- What is the supply voltage for the LTC1407?
The supply voltage for the LTC1407 is 3V.
- What are some typical applications for the LTC1407?
The LTC1407 is suitable for portable and battery-powered devices, high-speed data acquisition systems, medical devices, industrial automation, and aerospace and defense applications.
- How does the Sleep shutdown feature work?
The Sleep shutdown feature reduces the power consumption of the LTC1407 to 10µW, significantly lowering power usage when the device is not in active use.
