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The Latest Information on Products, Tools, and Technical Material
IN THE FEBRUARY ISSUE:
NEWLY RELEASED PRODUCTS 
These products are in full production and available for sampling/ordering
Data Converters
Tiny 16-Bit SPI nanoDAC+TM, with ±2 (16-Bit) LSB INL and 2 ppm/°C Reference
  • 5 ppm/°C max 2.5 V reference 
  • 2 mV  total unadjusted error
  • ±1.5 mV max offset error
  • ±0.05% of FSR max gain error
  • SPI interface
  • 2 mm × 2 mm 8-lead LFCSP and 10-lead MSOP 
  • −40°C to +105°C industrial temperature range
  • 4-kV HBM ESD rating provides system robustness
  • AD5683R 1k price $3.15
Learn more about the AD5683R SPI nanoDAC+, download the data sheet, and order free samples here

Learn more about the other pin-compatible, single-channel 16- to 10-bit SPI nanoDAC+ series: AD5683, AD5682RAD5681R, AD5310R
Dual Differential 16-Bit, 1 MSPS PulSAR® ADCs
  • 2 ADCs in one package
  • Simultaneous sampling or independent operation
    • ±2.0 LSB max INL (±0.5 LSB typ)
    • 93.5 dB SINAD at 1 kHz
    • −112 dB THD at 1 kHz
  • Power dissipation: 12.0 mW at 1 MSPS
    • 140 µW at 10 kSPS
  • Serial interface
  • 20-lead QSOP package
  • −40°C to +125°C extended industrial temperature range
  • AD7903 1k price $15
Learn more about the AD7903, download the data sheet, and order free samples here
Quad 16-Bit/125 MSPS ADC With JESD204B Serial Output
  • High dynamic range
    • SNR = 79.9 dBFS at 16 MHz (VREF = 1.4 V)
    • SNR = 78.1 dBFS at 64 MHz (VREF = 1.4 V)
    • SFDR = 86 dBc to Nyquist (VREF = 1.4 V)
  • 650 MHz analog full power input bandwidth
  • Small footprint: four ADCs are contained in a small, 8 mm × 8 mm package
  • JESD204B output block supports up to 6.4 Gbps per lane and one, two, and four lane configurations
  • Low power of 198 mW per channel at 125 MSPS, two lanes
  • 1k price $258.27
Learn more about the AD9656 quad 16-bit, 125 MSPS low power ADC with JESD204B output here
Dual 16-bit TxDAC+®  Optimized for Direct Conversion Transmit Applications
  • Supports input data rate up to 575 MHz
  • Very small inherent latency variation: < 2 DAC clock cycles
  • Proprietary low spurious and distortion design
  • 6-carrier GSM ACLR = 79 dBc at 200 MHz IF
  • SFDR > 85 dBc (bandwidth = 300 MHz) at ZIF
  • Multiple chip synchronization capability
  • Fixed latency and data generator latency compensation
  • 1k price $41.40
Learn more about the high dynamic range AD9142A Dual 16-bit TxDAC+® here
16-channel 65 MSPS, and 8-Channel 125 MSPS, 14-Bit High Speed Analog-to-Digital Converters
  • SFDR: 90 dBc (to Nyquist)
  • DNL: ±0.8 LSB (typical); INL: ±01.2 LSB (typical)
  • 650 MHz full power analog bandwidth
  • Low power:
    • 16-channel—58 mW per channel at 65 MSPS
    • 8-channel—110 mW per channel at 125 MSPS
  • 10 mm × 10 mm 144-ball CSP-BGA
  • 1k price $113.86 (AD9249)
  • 1k price $232.00 (AD9681)
Learn more about the AD9249, 16-channel, 14-bit, 65 MSPS ADC here

Learn more about the AD9681, 8-channel, 14-bit, 125 MSPS ADC here
Amplifiers
Single, Dual, and Quad Low Offset, Low Drift, High Precision Operational Amplifiers
  • Offset voltage and offset voltage drift
    • A grade: max offset at 25°C and max drift from –40°C to +125°C
    • B grade: 25 µV and 0.25 µV/°C at VSY = ±5 V
  • MSL 1 rated
  • Low voltage noise density: 6.9 nV/√Hz typ at f = 1000 Hz
  • CMRR, PSRR, and AV > 120 dB min
  • Wide gain bandwidth product: 3.9 MHz at ±5 V
  • Pricing (1k)
    • ADA4077-1 single: $0.77 (A grade); $2.36 (B grade)
    • ADA4077-2 dual: $1.38 (A grade); $3.81 (B grade)
    • ADA4077-4 quad: $2.90 (A grade)
Learn more about the ADA4077-1; download the data sheet and order free samples here
Dual and Quad Low Noise, Rail-to-Rail I/O, Low Power Operational Amplifiers
  • Low power: 0.625 mA typical per amp at ±15 V
  • Gain bandwidth product: 15.9 MHz at AV = 100 typical
  • Unity-gain crossover: 9.9 MHz typical
  • –3 dB closed-loop bandwidth: 13.9 MHz typical at ±15 V
  • Pricing (1k)
    • ADA4084-2 dual: $2.85
    • ADA4084-4 quad: $4.45
Learn more about the ADA4084-4; download the data sheet and order free samples here
Power Management
Hot Swappable, Dual I2C Isolators with Integrated DC-to-DC Converter
  • isoPower® integrated, isolated dc-to-dc converter
  • Regulated 3.15 V or 5.25 V output up to 150 mW output power
  • High common-mode transient immunity: > 25 kV/μs
  • iCoupler® integrated I2C digital isolator
  • Bidirectional I2C communication
  • ADM3260 1k unit price: $2.99
Learn more about the ADM3260, download the data sheet and order free samples here
Interface and Isolation
Micropower, Dual-Channel Digital Isolators, Default High (2/0 Channel Directionality)
  • Ultralow power operation
    • 3.3 V operation
    • 6 μA per channel quiescent current, refresh enabled
    • 0.3 μA per channel quiescent current, refresh disabled
    • 148 μA/Mbps per channel typical dynamic current
  • 2.5 V operation
    • 3 μA per channel quiescent current, refresh enabled
    • 0.1 μA per channel quiescent current, refresh disabled
  • ADuM124x 1k unit price: $1.39
Learn more about the ADuM124x, download the data sheet and order free samples here
RF
695 MHz to 2700 MHz Quadrature Demodulator with Integrated Fractional-N PLL and VCO
  • I/Q demodulator with integrated fractional-N PLL
  • RF input frequency range: 695 MHz to 2700 MHz
  • Internal LO frequency range: 356.25 MHz to 2850 MHz
  • Input P1dB: 14.5 dBm at 1900 MHz RF
  • Input IP3: 37 dBm at 1900 MHz RF
  • ADRF6820 1k unit price: $12.98
Learn more about the ADRF6820 I/Q demodulator here
Featured Circuits from the Lab® Reference Designs 
CN0271: Thermocouple Temperature Measurement System with Amplifier-Based Cold
Junction Compensation

The circuit provides a compact, low cost solution for thermocouple signal conditioning and high resolution analog-to-digital conversion. You can view the circuit note and order a self contained evaluation board here.
Engineered. Tested. Ready to Integrate.
FEATURED VIDEO 
You must see this video!

A digital isolator with such low power 
that it can be powered by a potato!

Watch now and see how our Digital Isolators use up to 1000× less power than optocouplers and competing digital isolators
RARELY ASKED QUESTONS 
Defying Scrooge
How can I pursue my hobby without access to electronics test gear?
NEW DESIGN RESOURCES 
Print and keep these selection guides on your deck for handy reference:
WEBCAST 
An Overview of Spectroscopy Instrumentation Techniques, Applications, and Signal Chains

The webcast will start with the basics, show the theory of operation, and describe some typical spectroscopy signal chains. Next, we'll explain the challenges of the primary photodiode path and finish with a discussion of the auxiliary measurements that need to be considered in the component selection and end system design. The webcast aired on February 12, 2014 at noon ET, but it is now available On Demand. It’s free, and you can register now here.

FROM THE PAGES OF ANALOG DIALOGUE 
Electromagnetic Flow Meters Achieve High Accuracy in Industrial Applications
Industrial applications ranging from oil refineries to vending machines require precision measurements of temperature, pressure, and flow. Accurate control of flow when filling bottles in the food industry or exchanging petroleum between tanks and tankers can directly influence profits. This article presents an overview of flow meter technologies, focusing on high accuracy electromagnetic flow meters.

A Deeper Look into Difference Amplifiers
The classic four resistor difference amplifier seems simple, but many circuit implementations perform poorly. Based on actual production designs, this article shows some of the pitfalls encountered with discrete resistors, filtering, ac common-mode rejection, and high noise gain. To achieve a solid, production worthy design, carefully consider noise gain, input voltage range, impedance ratios, and offset voltage specifications.
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