MAX1191
PRODUCTIONUltra-Low-Power, 7.5Msps, Dual, 8-Bit ADC
- Part Models
- 2
- 1ku List Price
- Starting From $4.52
Part Details
- Ultra-Low Power
- 12mW (Normal Operation: 7.5Msps)
- 0.3µW (Shutdown Mode)
- Excellent Dynamic Performance
- 48.7dB SNR at fIN = 1.875MHz
- 69dBc SFDR at fIN = 1.875MHz
- 2.7V to 3.6V Single Analog Supply
- 1.8V to 3.6V TTL/CMOS-Compatible Digital Outputs
- Fully Differential or Single-Ended Analog Inputs
- Internal/External Reference Option
- Multiplexed CMOS-Compatible Tri-State Outputs
- 28-Pin Thin QFN Package
- Evaluation Kit Available (Order MAX1193EVKIT)
The MAX1191 is an ultra-low-power, dual, 8-bit, 7.5Msps analog-to-digital converter (ADC). The device features two fully differential wideband track-and-hold (T/H) inputs. These inputs have a 440MHz bandwidth and accept fully differential or single-ended signals. The MAX1191 delivers a typical signal-to-noise and distortion (SINAD) of 48.6dB at an input frequency of 1.875MHz and a sampling rate of 7.5Msps while consuming only 12mW. This ADC operates from a 2.7V to 3.6V analog power supply. A separate 1.8V to 3.6V supply powers the digital output driver. In addition to ultra-low operating power, the MAX1191 features three power-down modes to conserve power during idle periods. Excellent dynamic performance, ultra-low power, and small size make the MAX1191 ideal for applications in imaging, instrumentation, and digital communications.
An internal 1.024V precision bandgap reference sets the full-scale range of the ADC to ±0.512V. A flexible reference structure allows the MAX1191 to use its internal reference or accept an externally applied reference for applications requiring increased accuracy.
The MAX1191 features parallel, multiplexed, CMOS-compatible tri-state outputs. The digital output format is offset binary. A separate digital power input accepts a voltage from 1.8V to 3.6V for flexible interfacing to different logic levels. The MAX1191 is available in a 5mm x 5mm, 28-pin thin QFN package, and is specified for the extended industrial (-40°C to +85°C) temperature range.
For higher sampling frequency applications, refer to the MAX1195-MAX1198 dual 8-bit ADCs. See a parametric table of the complete family of pin-compatible, 8-bit high-speed ADCs.
Applications
- Battery-Powered Portable Instruments
- IQ Baseband Sampling
- Low-Power Video
- Ultrasound and Medical Imaging
- WLAN, Mobile DSL, WLL Receiver
Documentation
Data Sheet 1
Technical Articles 3
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX1191ETI+ | 28-LFCSP-5X5X0.75 | ||
| MAX1191ETI+T | 28-LFCSP-5X5X0.75 |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Standard High Speed A/D Converters 4 | ||
| MAX1195 | PRODUCTION | Dual, 8-Bit, 40Msps, 3V, Low-Power ADC with Internal Reference and Parallel Outputs |
| MAX1198 | PRODUCTION | Dual, 8-Bit, 100Msps, 3.3V, Low-Power ADC with Internal Reference and Parallel Outputs |
| MAX1192 | PRODUCTION | Ultra-Low-Power, 22Msps, Dual 8-Bit ADC |
| MAX1193 | PRODUCTION | Ultra-Low-Power, 45Msps, Dual 8-Bit ADC |
Evaluation Kits
Evaluation Kit for the MAX1191, MAX1192, and MAX1193
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