12-Bit, 40Msps ADC
DescriptionThe MAX1206 is a 3.3V, 12-bit analog-to-digital converter (ADC) featuring a fully differential wideband track-and-hold (T/H) input, driving the internal quantizer. The MAX1206 is optimized for low power, small size, and high dynamic performance. This ADC operates from a single 3.0V to 3.6V supply, consuming only 159mW, while delivering a typical signal-to-noise ratio (SNR) performance of 68.6dB at a 20MHz input frequency. The T/H-driven input stage accepts single-ended or differential inputs. In addition to low operating power, the MAX1206 features a 0.15mW power-down mode to conserve power during idle periods.
A flexible reference structure allows the MAX1206 to use its internal precision bandgap reference or accept an externally applied reference. A common-mode reference is provided to simplify design and reduce external component count in differential analog input circuits.
The MAX1206 supports both a single-ended and differential input clock drive. Wide variations in the clock duty cycle are compensated with the ADC's internal duty-cycle equalizer.
The MAX1206 features parallel, CMOS-compatible outputs. The digital output format is pin selectable to be either two's complement or Gray code. A data-valid indicator eliminates external components that are normally required for reliable digital interfacing. A separate power input for the digital outputs accepts a voltage from 1.7V to 3.6V for flexible interfacing with various logic levels. The MAX1206 is available in a 6mm x 6mm x 0.8mm, 40- pin thin QFN package with exposed paddle (EP), and is specified for the extended industrial (-40°C to +85°C) temperature range.
Refer to the MAX1209 and MAX1211 (see Pin-Compatible Higher/Speed Versions table) for applications that require high dynamic performance for IF input frequencies.
See a parametric table of the complete family of pin-compatible, 12-/14-bit high-speed ADCs.
- Excellent Dynamic Performance
- 68.6dB SNR at fIN = 20MHz
- 90dBc SFDR at fIN = 20MHz
- Low-Power Operation
- 159mW at 3.0V (Single-Ended Clock)
- 181mW at 3.3V (Single-Ended Clock)
- 198mW at 3.3V (Differential Clock)
- Differential or Single-Ended Clock
- Accepts 20% to 80% Clock Duty Cycle
- Fully Differential or Single-Ended Analog Input
- Adjustable Full-Scale Analog Input Range
- Common-Mode Reference
- Power-Down Mode
- CMOS-Compatible Outputs in Two's Complement or Gray Code
- Data-Valid Indicator Simplifies Digital Design
- Out-of-Range and Data-Valid Indicators
- Miniature, 40-Pin Thin QFN Package with Exposed Paddle
- Pin-Compatible, IF Sampling ADC Available (MAX1211ETL)
- Evaluation Kit Available (Order MAX1211EVKIT)
- Communication Receivers Cellular, LMDS, Point-to-Point Microwave, MMDS, HFC, WLAN
- Low-Power Data Acquisition
- Portable Instrumentation
- Ultrasound and Medical Imaging
Technical DocumentsApp Note 3292 Crunching FFTs with Microsoft Excel
Tutorial 1819 Selecting the Optimum Test Tones and Test Equipment for Successful High-Speed ADC Sinewave Testing
Tutorial 1040 Coherent Sampling vs. Window Sampling
Additional ResourcesEvaluation Kit: MAX1211EVKIT
|Device||Fab Process||Technology||Sample size||Rejects||FIT at 25°C||FIT at 55°C||Material Composition|
|App Note||3292||Crunching FFTs with Microsoft Excel|
|Tutorial||1819||Selecting the Optimum Test Tones and Test Equipment for Successful High-Speed ADC Sinewave Testing|
|Tutorial||1040||Coherent Sampling vs. Window Sampling|