Dual, 8-Bit, 40Msps, 3V, Low-Power ADC with Internal Reference and Parallel Outputs
DescriptionThe MAX1195 is a 3V, dual, 8-bit analog-to-digital converter (ADC) featuring fully differential wideband track-and-hold (T/H) inputs, driving two ADCs. The MAX1195 is optimized for low-power, small size, and high-dynamic performance for applications in imaging, instrumentation and digital communications. This ADC operates from a single 2.7V to 3.6V supply, consuming only 87mW while delivering a typical signal-to-noise and distortion (SINAD) of 48.5dB at an input frequency of 20MHz and a sampling rate of 40Msps. The T/H-driven input stages incorporate 400MHz (-3dB) input amplifiers. The converters may also be operated with single-ended inputs. In addition to low operating power, the MAX1195 features a 3mA sleep mode as well as a 0.1µA power-down mode to conserve power during idle periods.
An internal 2.048V precision bandgap reference sets the full-scale range of the ADC. A flexible reference structure allows the use of this internal or an externally applied reference, if desired, for applications requiring increased accuracy or a different input voltage range.
The MAX1195 features parallel, CMOS-compatible three-state outputs. The digital output format can be set to two's complement or straight offset binary through a single control pin. The device provides for a separate output power supply of 1.7V to 3.6V for flexible interfacing with various logic families. The MAX1195 is available in a 7mm x 7mm, 48-pin TQFP package, and is specified for the extended industrial (-40°C to +85°C) temperature range.
See a parametric table of the complete family of pin-compatible, 8-bit high-speed ADCs.
For a 10-bit, pin-compatible upgrade, refer to the MAX1183 data sheet. With the N.C. pins of the MAX1195 internally pulled down to ground, this ADC becomes a drop-in replacement for the MAX1183.
- Single 2.7V to 3.6V Operation
- Excellent Dynamic Performance
- 48.5dB/46.7dB SINAD at fIN = 20MHz/200MHz
- 68.7dBc/55.7dBc SFDR at fIN = 20MHz/200MHz
- -72dB Interchannel Crosstalk at fIN = 20MHz
- Low Power
- 87mW (Normal Operation)
- 9mW (Sleep Mode)
- 0.3µW (Shutdown Mode)
- 0.05dB Gain and ±0.05° Phase Matching
- Wide ±1VP-P Differential Analog Input Voltage Range
- 400MHz -3dB Input Bandwidth
- On-Chip 2.048V Precision Bandgap Reference
- User-Selectable Output Format—Two's Complement or Offset Binary
- Pin-Compatible 8-Bit and 10-Bit Upgrades Available
- Baseband I/Q Sampling
- Battery-Powered Applications
- Multichannel IF Sampling
- Set-Top Boxes
- Ultrasound and Medical Imaging
- VSAT Terminals
- WLAN, WWAN, WLL, MMDS Modems
|Part Number||Input Chan.||Resolution|
|Full Pwr. BW|
|Data Bus Interface||Package/Pins||Budgetary|
|max ≥||min||min||See Notes|
|See All High-Speed ADCs (> 5Msps) (52)|
| Pricing Notes: |
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
Technical DocumentsTutorial 1819 Selecting the Optimum Test Tones and Test Equipment for Successful High-Speed ADC Sinewave Testing
Tutorial 1040 Coherent Sampling vs. Window Sampling
Tutorial 729 Dynamic Testing of High-Speed ADCs, Part 2
Tutorial 728 Defining and Testing Dynamic Parameters in High-Speed ADCs, Part 1
Quality and Environmental DataRequest Reliability Report for: MAX1195
Lead-Free Package Tin (Sn) Whisker Reports
Additional ResourcesEvaluation Kit: MAX1198EVKIT
|Device||Fab Process||Technology||Sample size||Rejects||FIT at 25°C||FIT at 55°C|
|Tutorial||1819||Selecting the Optimum Test Tones and Test Equipment for Successful High-Speed ADC Sinewave Testing|
|Tutorial||1040||Coherent Sampling vs. Window Sampling|
|Tutorial||729||Dynamic Testing of High-Speed ADCs, Part 2|
|Tutorial||728||Defining and Testing Dynamic Parameters in High-Speed ADCs, Part 1|