Overview
The MAX19191ETI+ is an ultra-low-power, 8-bit analog-to-digital converter (ADC) designed by Analog Devices, Inc./Maxim Integrated. This device is optimized for high-speed and low-power applications, making it ideal for various industries such as imaging, instrumentation, and digital communications. 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 of power during normal operation, with a shutdown mode power consumption as low as 2µW.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Resolution | 8 bits | |||
| Sampling Rate | 10 Msps | |||
| Input Channel Type | Differential, Single Ended | |||
| Supply Voltage | 2.7 | 3.6 | V | |
| Digital Output Supply Voltage | 1.8 | 3.6 | V | |
| Operating Temperature | -40 | 85 | °C | |
| Package Type | 28-pin Thin QFN | |||
| Power Consumption (Normal Operation) | 15.3 mW | |||
| Power Consumption (Shutdown Mode) | 2 µW | |||
| Signal-to-Noise and Distortion (SINAD) | 48.6 dB | |||
| Spurious-Free Dynamic Range (SFDR) | 70 dBc | |||
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 an input frequency of 1.875MHz.
- Fully differential wideband track-and-hold (T/H) input with 440MHz bandwidth.
- Accepts fully differential or single-ended analog inputs.
- Internal 1.024V precision bandgap reference with option for external reference.
- Parallel, CMOS-compatible three-state outputs with offset binary format.
- Separate digital power input (1.8V to 3.6V) for flexible interfacing.
- Compact 5mm × 5mm, 28-pin thin QFN package.
- Extended industrial temperature range (-40°C to +85°C).
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 operates at 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 at 10Msps.
- What is the power consumption in shutdown mode?
The power consumption in shutdown mode is as low as 2µW.
- What types of analog inputs does the MAX19191 accept?
The MAX19191 accepts both fully differential and single-ended analog inputs.
- What is the bandwidth of the track-and-hold (T/H) input?
The track-and-hold (T/H) input has a bandwidth of 440MHz.
- What is the signal-to-noise and distortion (SINAD) performance of the MAX19191?
The MAX19191 delivers a typical SINAD of 48.6dB at an input frequency of 1.875MHz.
- What is the spurious-free dynamic range (SFDR) of the MAX19191?
The SFDR is 70dBc at an input frequency of 1.875MHz.
- What are the supply voltage ranges for the MAX19191?
The analog supply voltage range is 2.7V to 3.6V, and the digital output driver supply voltage range is 1.8V to 3.6V.
- 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 5mm × 5mm, 28-pin thin QFN package.
