Overview
The MAX19191ETI/V+ 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 fully differential or single-ended signals. It operates from a 2.7V to 3.6V analog power supply and a separate 1.8V to 3.6V supply for the digital output driver, making it suitable for a variety of power-sensitive applications.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 8-bit |
| Sampling Rate | 10 Msps |
| Analog Input Type | Fully Differential or Single-Ended |
| Analog Input Bandwidth | 440 MHz |
| Analog Supply Voltage | 2.7V to 3.6V |
| Digital Supply Voltage | 1.8V to 3.6V |
| Power Consumption (Normal Operation) | 15.3 mW |
| Power Consumption (Shutdown Mode) | 2 µW |
| Signal-to-Noise and Distortion (SINAD) | 48.6 dB at fIN = 1.875 MHz |
| Package Type | 28-pin Thin QFN (5mm x 5mm) |
| Operating Temperature Range | -40°C to +85°C |
Key Features
- Ultra-low power consumption: 15.3 mW in normal operation and 2 µW in shutdown mode.
- Excellent dynamic performance with a SINAD of 48.6 dB at an input frequency of 1.875 MHz.
- Fully differential or single-ended analog inputs with a bandwidth of 440 MHz.
- Internal or external reference option with a precision bandgap reference setting the full-scale range to ±0.512 V.
- Parallel, CMOS-compatible three-state outputs with offset binary digital output format.
- Three power-down modes to conserve power during idle periods.
- AC- or DC-coupled input signal configuration.
Applications
- Ultrasound and Medical Imaging
- Battery-Powered Portable Instruments
- Digital Audio Receiver Front-End
- Low-Power Video
- WLAN, Mobile DSL, WLL Receiver
Q & A
- What is the resolution of the MAX19191ETI/V+ ADC?
The MAX19191ETI/V+ has an 8-bit resolution. - What is the maximum sampling rate of the MAX19191ETI/V+?
The maximum sampling rate is 10 Msps. - What types of analog inputs does the MAX19191ETI/V+ support?
The device supports fully differential or single-ended analog inputs. - What is the power consumption of the MAX19191ETI/V+ in normal operation?
The power consumption in normal operation is 15.3 mW. - What is the power consumption of the MAX19191ETI/V+ in shutdown mode?
The power consumption in shutdown mode is 2 µW. - What is the operating temperature range of the MAX19191ETI/V+?
The operating temperature range is -40°C to +85°C. - What package type is the MAX19191ETI/V+ available in?
The device is available in a 28-pin thin QFN package (5mm x 5mm). - Can the MAX19191ETI/V+ use an external reference?
Yes, the MAX19191ETI/V+ can use either its internal precision bandgap reference or an externally applied reference. - What are the typical applications of the MAX19191ETI/V+?
Typical applications include ultrasound and medical imaging, battery-powered portable instruments, digital audio receiver front-ends, low-power video, and WLAN, mobile DSL, WLL receivers. - Is the MAX19191ETI/V+ suitable for high-frequency input signals?
Yes, the device has a wide input bandwidth of 440 MHz, making it suitable for high-frequency input signals.
