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Description : 1Msps, 10-/12-Bit, 4-/8-/16-Channel ADCs with Post-Mux External Signal Conditioning Access

General Description
The MAX11321–MAX11328 are 12-/10-Bit with external reference and 500kHz, full-linear-bandwidth, high-speed, low-power, serial-output successive approximation register (SAR) analog-to-digital converters (ADCs). The MAX11321–MAX11328 provide external access to the output of the integrated mux and ADC input, to simplify conditioning. The MAX11321–MAX11328 include both internal and external clock modes. These devices feature scan mode in both internal and external clock modes. The internal clock mode features internal averaging to increase SNR. The external clock mode features the SampleSetK technology, a user-programmable analog input channel sequencer. The SampleSet approach provides greater sequencing flexibility for multichannel applications while alleviating Significant microcontroller or DSP (controlling unit) communication overhead.

Benefits and Features
♦ Scan Modes, Internal Averaging, and Internal Clock
♦ 16-Entry First-In/First-Out (FIFO)
♦ SampleSet: User-Defined Channel Sequence with Maximum Length of 256
♦ Input Pins
◇ Any Combination of Single-Ended, Differential and Pseudo-Differential Pairs Allowed
♦ Analog Multiplexer with True Differential Track/Hold
◇ 16-/8-/4-Channel Single-Ended
◇ 12-/8-/4-Channel Fully-Differential Pairs
◇ 15-/8-/4-Channel Pseudo-Differential Relative to a Common Input
♦ Externally Accessible Multiplex Output and ADC Input
♦ Two Software-Selectable Bipolar Input Ranges
◇ &Plusmn;VREF+/2, &Plusmn;VREF+
♦ Flexible Input Configuration Across All Channels
♦ High Accuracy
◇ &Plusmn;1 LSB INL, &Plusmn;1 LSB DNL, No Missing Codes
♦ 70dB SINAD Guaranteed at 100kHz Input Frequency
♦ 1.5V to 3.6V Digital I/O Supply Voltage
♦ 2.35V to 3.6V Supply Voltage
♦ Extended Battery Life for Portable Applications
◇ 5.4mW at 1Msps with 3V Supplies
◇ 2µA Full-Shutdown Current
♦ External Differential Reference (1V to VDD)
♦ 16MHz, 3-Wire SPI-/QSPI-/MICROWIRE-/DSP Compatible Serial Interface
♦ Wide -40NC to +125NC Operation
♦ Space-Saving, 32-Pin, 5mm x 5mm TQFN Packages
♦ 1Msps Conversion Rate, No Pipeline Delay

Applications
  High-Speed Data Acquisition Systems
  High-Speed Closed-Loop Systems
  Industrial Control Systems
  Medical Instrumentation
  Battery-Powered Instruments
  Portable Systems

 

Part Name(s) : MAX11046BECB-T
MaximIC
Maxim Integrated
Description : 4-/6-/8-Channel, 16-Bit, Simultaneous-Sampling ADCs

General Description
The MAX11044/MAX11045/MAX11046 16-bit ADCs offer 4, 6, or 8 independent input channels. Featuring independent track and hold (T/H) and SAR circuitry, these parts provide simultaneous sampling at 250ksps for each channel.

Features
♦4-/6-/8-Channel 16-Bit ADC
♦Single Analog and Digital Supply
♦High-Impedance Inputs Up to 1GΩ
♦On-Chip T/H Circuit for Each Channel
♦Fast 3µs Conversion Time
♦High Throughput: 250ksps for All 8 Channels
♦16-Bit, High-Speed, Parallel Interface
♦Internal Clocked Conversions
♦10ns Aperture Delay
♦100ps Channel-to-Channel T/H Matching
♦Low Drift, Accurate 4.096V Internal Reference Providing an Input Range of ±5V
♦External Reference Range of 3.0V to 4.25V, Allowing Full-Scale Input Ranges of ±4.0V to ±5.2V
♦56-Pin (8mm x 8mm) TQFN and 64-Pin (10mm x 10mm) TQFP Packages
♦Evaluation Kit Available

Description : 4-/6-/8-Channel 16-Bit Simultaneous-Sampling ADCs

The MAX11047 / MAX11048 / MAX11049 16-bit ADCs offer 4, 6, or 8 independent input channels. Featuring independent track and hold (T/H) and SAR circuitry, these parts provide simultaneous sampling at 250ksps for each channel.

Description : CMOS 10-Bit A/D Converter with Track-and-Hold

CMOS 10-Bit A/D Converter with Track-and-Hold

Part Name(s) : AD7776AN
ADI
Analog Devices
Description : LC2MOS, High Speed 1-, 4-, & 8-Channel 10-Bit ADCs

GENERAL DESCRIPTION
The AD7776, AD7777 and AD7778 are a family of high speed, multichannel, 10-Bit ADCs primarily intended for use in R/W head positioning servos found in high density hard disk drives. They have unique input Signal conditioning features that make them ideal for use in such single supply applications.

FEATURES
   AD7776: Single Channel
   AD7777: 4-Channel
   AD7778: 8-Channel
   Fast 10-Bit ADC: 2.5 μs Worst Case
   +5 V Only
   Half-Scale Conversion Option
   Fast Interface Port
   Power-Down Mode
  
APPLICATIONS
   HDD Servos
   Instrumentation

Description : 500ksps, 12-Bit ADCs with Track/Hold and Reference

General Description
The MAX120/MAX122 complete, BiCMOS, sampling 12-bit analog-to-digital converters (ADCs) combine an on-chip Track/Hold (T/H) and a low-drift voltage reference with fast conversion speeds and low-power consumption. The T/H’s 350ns acquisition time combined with the MAX120’s 1.6µs conversion time results in throughput rates as high as 500k samples per second (ksps). Throughput rates of 333ksps are possible with the 2.6µs conversion time of the MAX122.

Features
● 12-Bit Resolution
● No Missing Codes Over Temperature
● 20ppm/°C -5V Internal Reference
● 1.6µs Conversion Time/500ksps Throughput (MAX120)
● 2.6µs Conversion Time/333ksps Throughput (MAX122)
● Low Noise and Distortion:
    • 70dB (min) SINAD
    • -77dB (max) THD (MAX122)
● Low Power Dissipation: 210mW
● Separate Track/Hold Control Input
● Continuous-Conversion Mode Available
● ±5V Input Range, Overvoltage Tolerant to ±15V
● 24-Pin Narrow DIP, Wide SO, and SSOP Packages

Applications
● Digital-Signal Processing
● Audio and Telecom Processing
● Speech Recognition and Synthesis
● High-Speed Data Acquisition
● Spectrum Analysis
● Data Logging Systems

Description : 500ksps, 12-Bit ADCs with Track/Hold and Reference

General Description
The MAX120/MAX122 complete, BiCMOS, sampling 12-bit analog-to-digital converters (ADCs) combine an on-chip Track/Hold (T/H) and a low-drift voltage reference with fast conversion speeds and low-power consumption. The T/H’s 350ns acquisition time combined with the MAX120’s 1.6µs conversion time results in throughput rates as high as 500k samples per second (ksps). Throughput rates of 333ksps are possible with the 2.6µs conversion time of the MAX122.

Features
● 12-Bit Resolution
● No Missing Codes Over Temperature
● 20ppm/°C -5V Internal Reference
● 1.6µs Conversion Time/500ksps Throughput (MAX120)
● 2.6µs Conversion Time/333ksps Throughput (MAX122)
● Low Noise and Distortion:
    • 70dB (min) SINAD
    • -77dB (max) THD (MAX122)
● Low Power Dissipation: 210mW
● Separate Track/Hold Control Input
● Continuous-Conversion Mode Available
● ±5V Input Range, Overvoltage Tolerant to ±15V
● 24-Pin Narrow DIP, Wide SO, and SSOP Packages

Applications
● Digital-Signal Processing
● Audio and Telecom Processing
● Speech Recognition and Synthesis
● High-Speed Data Acquisition
● Spectrum Analysis
● Data Logging Systems

Exar
Exar Corporation
Description : 8-Bit Analog-to-Digital Converter with an 8-Channel MUX

GENERAL DESCRIPTION
The MP8820 is a precision 1.6 MHz sampling 7-bit Plus Sign Analog-to-Digital Converter with an eight channel input mux and µP interface. The device has internal circuitry which receives the user supplied reference voltages VREF(+) and VREF(–), and generates the ADC reference voltages VMID ± (VREF(+) – VREF(–)). Since VREF(+) is internally buffered and VREF(–) is generally ground, this structure allows the user to easily generate an input range biased about a user-supplied VMID from a grounded reference source.

FEATURES
• Precision 7–Bit Plus Sign ADC
• 8 Channel Analog Mux
• Single Reference to GND
• Input Referenced to User Supplied VMID
• DNL= ±1/2 LSB, INL=± 1 LSB
• Single Supply: 5 V
• ESD Protection: 2000 V

APPLICATIONS
• Servo Control
• Low Cost Audio Control
• Voice Acquisition

Description : LC2MOS, High Speed 1-, 4-, and 8-Channel 10-Bit ADCs

GENERAL DESCRIPTION
The AD7776/AD7777/AD7778 are a family of high speed, multichannel, 10-Bit ADCs primarily intended for use in R/W head positioning servos found in high density hard disk drives. They have unique input Signal conditioning features that make them ideal for use in such single supply applications.

FEATURES
   AD7776: 1-Channel
   AD7777: 4-Channel
   AD7778: 8-Channel
   Fast 10-Bit ADC: 2.5 μs Worst Case
   +5 V Only
   Half-Scale Conversion Option
   Fast Interface Port
   Power-Down Mode
  
APPLICATIONS
   HDD Servos
   Instrumentation

Description : 250ksps, +3V, 8-/4-Channel, 10-Bit ADCs with +2.5V Reference and Parallel Interface

General Description
The MAX1061/MAX1063 low-power, 10-Bit analog-to-digital converters (ADCs) feature a successive-approximation ADC, automatic power-down, fast wake-up (2µs), an on-chip clock, +2.5V internal reference, and a high-speed, byte-wide parallel interface. They operate with a single +3V analog supply and feature a VLOGIC pin that allows them to interface directly with a +1.8V to +3.6V digital supply.

Features
10-Bit Resolution, ±0.5 LSB Linearity
♦ +3V Single-Supply Operation
♦ User-Adjustable Logic Level (+1.8V to +3.6V)
♦ Internal +2.5V Reference
♦ Software-Configurable, Analog Input Multiplexer
    8-Channel Single Ended/
    4-Channel Pseudo-Differential (MAX1061)
    4-Channel Single Ended/
    2-Channel Pseudo-Differential (MAX1063)
♦ Software-Configurable, Unipolar/Bipolar Inputs
♦ Low Power
    1.9mA (250ksps)
    1.0mA (100ksps)
    400µA (10ksps)
    2µA (Shutdown)
♦ Internal 3MHz Full-Power Bandwidth Track/Hold
♦ Byte-Wide Parallel (8 + 2) Interface
♦ Small Footprint: 28-Pin QSOP (MAX1061)
    24-Pin QSOP (MAX1063)

Applications
    Industrial Control Systems
    Data Logging
    Energy Management
    Patient Monitoring
    Data-Acquisition Systems
    Touch Screens

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