Overview
The MAX19191ETI/V+T is an ultra-low-power, 8-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is designed for high-performance applications requiring low power consumption and excellent dynamic performance. The MAX19191 features a fully differential wideband track-and-hold (T/H) input with a 440MHz bandwidth, capable of accepting both fully differential and single-ended signals. It operates at a maximum sampling rate of 10Msps and consumes only 15.3mW during normal operation, with a shutdown mode power consumption as low as 2µW. The ADC is ideal for various applications including imaging, instrumentation, and digital communications due to its ultra-low power, small size, and excellent dynamic performance.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 8-bit |
| Sampling Rate | Up to 10Msps |
| Analog Input Type | Fully differential or single-ended |
| Analog Input Bandwidth | 440MHz |
| Analog Power Supply | 2.7V to 3.6V |
| Digital Power Supply | 1.8V to 3.6V |
| Power Consumption (Normal Operation) | 15.3mW |
| Power Consumption (Shutdown Mode) | 2µW |
| Signal-to-Noise and Distortion (SINAD) | 48.6dB at fIN= 1.875MHz |
| Package Type | 28-pin thin QFN (5mm × 5mm) |
| Operating Temperature Range | -40°C to +85°C |
Key Features
- Ultra-low power consumption: 15.3mW at 10Msps and 2µW in shutdown mode
- Excellent dynamic performance: 48.6dB SINAD at fIN= 1.875MHz
- Fully differential or single-ended analog inputs with 440MHz bandwidth
- Internal or external reference option with a precision bandgap reference of 1.024V
- Parallel, CMOS-compatible three-state outputs with offset binary format
- Three power-down modes for power conservation
- Flexible digital power input (1.8V to 3.6V) for interfacing with different logic levels
Applications
- Ultrasound and Medical Imaging
- Battery-Powered Portable Instruments
- Low-Power Video
- WLAN, Mobile DSL, WLL Receiver
- Digital Audio Receiver Front-End
Q & A
- What is the maximum sampling rate of the MAX19191?
The MAX19191 has a maximum sampling rate of 10Msps. - What is the power consumption of the MAX19191 during normal operation?
The power consumption during normal operation is 15.3mW. - What is the power consumption in shutdown mode?
The power consumption in shutdown mode is 2µW. - What types of analog inputs does the MAX19191 support?
The MAX19191 supports both fully differential and single-ended analog inputs. - What is the bandwidth of the track-and-hold input?
The bandwidth of the track-and-hold input is 440MHz. - What are the operating voltage ranges for the analog and digital power supplies?
The analog power supply operates from 2.7V to 3.6V, and the digital power supply operates from 1.8V to 3.6V. - What is the SINAD of the MAX19191 at an input frequency of 1.875MHz?
The SINAD is 48.6dB at an input frequency of 1.875MHz. - What package type is the MAX19191 available in?
The MAX19191 is available in a 28-pin thin QFN package (5mm × 5mm). - What is the operating temperature range of the MAX19191?
The operating temperature range is -40°C to +85°C. - Does the MAX19191 support internal or external reference options?
Yes, the MAX19191 supports both internal and external reference options.
