Overview
The MAX19191ETI+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 analog signals. It operates at a maximum sampling rate of 10Msps and consumes only 15.3mW during normal operation, with a shutdown mode power consumption of just 2µW. The ADC is ideal for various applications including imaging, instrumentation, and digital communications due to its ultra-low power, high dynamic performance, and compact size.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 8-bit |
| Maximum Sampling Rate | 10Msps |
| Analog Supply Voltage | 2.7V to 3.6V |
| Digital Output Supply Voltage | 1.8V to 3.6V |
| Input Bandwidth | 440MHz |
| Signal-to-Noise and Distortion (SINAD) | 48.6dB at fIN= 1.875MHz |
| Spurious-Free Dynamic Range (SFDR) | 70dBc at fIN= 1.875MHz |
| Power Consumption (Normal Operation) | 15.3mW |
| Power Consumption (Shutdown Mode) | 2µW |
| Package Type | 28-pin Thin QFN |
| 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 and 70dBc SFDR at fIN= 1.875MHz
- Fully differential or single-ended analog inputs with AC- or DC-coupled configuration
- Internal or external reference option with a precision bandgap reference
- Parallel, CMOS-compatible three-state outputs with offset binary format
- Three power-down modes for power conservation
- Compact 5mm × 5mm, 28-pin thin QFN package
Applications
- Battery-Powered Portable Instruments
- Digital Audio Receiver Front-End
- Low-Power Video
- Ultrasound and Medical Imaging
- WLAN, Mobile DSL, WLL Receiver
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 input bandwidth of the track-and-hold amplifier?
The input bandwidth of the track-and-hold amplifier is 440MHz. - What is the typical SINAD of the MAX19191 at an input frequency of 1.875MHz?
The typical SINAD is 48.6dB at an input frequency of 1.875MHz. - Can the MAX19191 use an external reference?
Yes, the MAX19191 can use either its internal reference or an externally applied reference. - What is the operating temperature range of the MAX19191?
The operating temperature range is -40°C to +85°C. - What package type is the MAX19191 available in?
The MAX19191 is available in a 28-pin thin QFN package. - Is an evaluation kit available for the MAX19191?
Yes, an evaluation kit (MAX19191EVKIT+) is available for evaluating the performance of the MAX19191.
