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General description :
Intersil is introducing a new family of the world's lowest power, high-performance analog-to-digital converters. Our innovative FemtoCharge® CMOS technology yields ultra-high performance ADCs that consume a fraction of the power of the competition. The unmatched size and power advantages of our data converters enable increased functionality in a broad cross section of applications including:
Communication: Cellular base station receivers, set-top boxes, portable radios
Networking: Cable head-end infrastructure, networking cards
Instrumentation: data acquisition, digital scopes, telecom test equipment
Industrial: security screening equipment, industrial and medical imaging
Military: Electronic warfare, radar, broadband secure communications
Video & Imaging: PC peripherals (card scanners)
FemtoCharge® ADCs deliver outstanding dynamic and low power performance combined with superior wideband capabilities and a compact footprint. These ADCs boast best-in-class sampling rate and low power consumption versus the competition.
With a product portfolio spanning a variety of sampling rates and resolutions of 8, 10, 12 and 14 bits, Intersil offers solutions for multiple high-performance conversion applications.
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We offer a very wide range of high-performance data converters. Our A/D and D/A converters (ADCs and DACs) have resolutions from 6 bits to 18 bits and sampling rates from DC to 2.3Gsps.
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A/D Converters
5102ALP A/D Converter, 16-bit, 20kHz, Single Event Latchup-protected
7672 A/D Converter, 12-bit, 5us conversion time
7805ALP A/D Converter, 16-bit, Parallel, Single Event Latchup-protected
7809LP A/D Converter, 16-bit, Serial, Single Event Latchup-protected
7820 A/D Converter, 8-bit, 1.36us conversion time
7872 A/D Converter, 14-bit, 10us conversion time
9042 A/D Converter, 12-bit, 41 MSPS
9240LP A/D Converter, 14-bit, 10Mhz, Single Event Latchup-protected
D/A Converters
5675RP D/A Converter, 14-bit, 400 MSPS
7545A D/A Converter, 12-bit, Buffered Multiplying
7846A D/A Converter, 16-bit
8143 D/A Converter, 12-bit, Serial Daisy Chain
8408 D/A Converter, Quad 8-bit Multiplying CMOS
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The Microchip Technology Inc. MCP355X devices are 2.7V to 5.5V low-power, 22-bit delta-sigma A/D converters. The devices offer output noise as low as 2.5 µVrms with a total unadjusted error of less than 10 ppm. The family exhibits less than 6 ppm integral non-linearity (INL) error, 3 µV offset error, and 2 ppm full scale error. The MCP355X devices provide high accuracy and low noise performance for applications where sensor measurements such as pressure, temperature, and humidity are performed. With the internal oscillator and high oversampling rate, minimal external components are required for high accuracy applications. The fully differential analog inputs make it compatible with a wide variety of sensor and measurement applications. The MCP355X devices operate from -40°C to +125°C and are available in the space-saving 8-pin MSOP and SOIC packages.
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National's Powerwise Analog-to-Digital Converters (ADCs) are the lowest power family of A/D converters on the market. In addition to providing extremely low power consumption over a range of sample rates, each ADC has a very efficient power down feature. For example, a single channel 1Msps PowerWise ADC used in a 10 Ksps application has a typical power consumption of 0.02 mW at 3V.
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As the world's leading supplier of data converters, Analog Devices enables new system architectures with analog to digital converters (ADCs) that deliver breakthrough combinations of performance and function. Analog Devices' ADCs are unmatched in their ability to deliver the low power, small footprint, and low cost requirements today's systems demand. ADI's A/D converters provide superior value for high-volume applications in cost-sensitive markets.
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Linear Technology offers a complete family of high performance analog to digital converters (ADCs), including 16-bit to 24-bit delta-sigma converters for precision measurements, up to 16-bit high-speed pipeline for communications and 8-bit to 16-bit low power successive approximation (SAR) ADCs for everything in between.
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High Performance Analog to Digital Converters (ADC) and Digital to Analog Converters (DAC) for real world analog applications.
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The QTouch™ devices are charging a sense electrode of unknown capacitance to a known potential. The electrode is typically a copper area on a printed circuit board. The resulting charge is transferred into a measurement circuit. By measuring the charge after one or more charge-and-transfer cycles, the capacitance of the sense plate can be determined.
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The MCP3421 is a single channel low-noise, high accuracy delta-sigma A/D converter with differential inputs and up to 18 bits of resolution in a small SOT-23-6 package. The on-board precision 2.048V reference voltage enables an input range of ±2.048V differentially. The device uses a two-wire I2C™ compatible serial interface and operates from a single power supply ranging from 2.7V to 5.5V. The MCP3421 device performs conversions at rates of 3.75, 15, 60 or 240 samples per second depending on user controllable configuration bit settings using the two-wire I2C™ compatible serial interface. This device has an onboard programmable gain amplifier (PGA). User can select the PGA gain of x1, x2, x4, or x8 before the analog-to-digital conversion takes place. This allows the MCP3421 device to convert a smaller input signal with high resolution. The device has two conversion modes: (a) Continuous mode and (b) One-Shot mode. In One-Shot mode, the device enters a low current standby mode automatically after one conversion. This reduces current consumption greatly during idle periods. The MCP3421 device can be used for various high accuracy analog-to-digital data conversion applications where ease of use, low power consumption and small footprint are major considerations.
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National's Analog to Digital converters employ a new breed of sigma-delta architecture: continuous time sigma-delta (CT∑Δ). The architecture provides high resolution at MHz speeds with significantly improved power consumption efficiency compared to pipelined A/D converters.
The National CT∑Δ ADC is self-clocked. The integrated clock on our A/D converters eliminates the need for expensive, difficult to design clock circuits. We have designed our CT∑Δ ADCs on a true mixed signal CMOS process. This (the CT∑Δ converter also) enables the integration of extra signal path components like input low noise amplifiers (LNA) & programmable gain amplifiers (PGA) and lower overall system costs.
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SMD1102, SMD1103, SMD1113
10-Bit Data Acquisition System for Autonomous Environmental Monitoring
FEATURES
- Complete Data Acquisition System
- 10-Bit A/D Converter Resolution
- 75µs Acquisition plus Conversion Time
- Alarm Limits for Each Input Channel
- Auto-Increment of Input Channels
- Two Wire I2C Serial Data Interface
- System Management Bus (SMBus) Compatible
- Auto-Monitor with SMBALERT Output
- Low Quiescent Current of 50µA
- Wide Supply Voltage Range: 2.7V to 5.5V
SMD1102:
- 2-Channel Analog Input
- External Voltage Reference Input Provided for Absolute Measurements
SMD1103:
- 3-Channel Analog Input
- Reference Voltage Input for the A/D Converter is Connected to VDD for Ratiometric Measurements
SMD1113:
- Extended I2C Operation
- 3-Channel Analog Input
- External Voltage Reference Input Provided for Absolute Measurements
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Fujitsu's advanced mixed signal capacity is demonstrated in a new range of high performance data converters ideally suited to communication infrastructure applications. Through the unique combination of leading edge CMOS technology and novel patented architectures high speed, high resolution converters are achieved without compromise to critical systems issues such as power consumption.
The range of converters enables new systems architectures, which are currently not practical, to be adopted. Beginning with virtually standard 12 bit resolution, 14 and 16 bit devices will meet the requirements of next generation communication systems where systems specifications are often written around the limit of available technology.
High performance analog to digital conversion provides the ultimate solution to digitisation in the receive chain. By moving the converter up the signal chain, direct IF digitisation enables a complete multi-channel band to be sampled for subsequent separation and processing digitally. High performance digital to analog conversion enables a similar specification to the transmit path by direct IF synthesis, again using digital signal processing to create a complete communication band.
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The CSA42L51 delivers excellent audio performance while providing portable device developers with an innovative solution that maximizes battery life while minimizing end product form factors
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austriamicrosystems' portfolio of A/D converters includes 10-bit to 12-bit converters with sampling rates up to 400ksps, offering the low power consumption typical for austriamicrosystems devices.
AS1524: Micro-Power, 12-Bit ADC, 150ksps, 1-Channel True-Differential, TDFN (3x3mm) 8-pin
AS1525: Micro-Power, 12-Bit ADC, 150ksps, 2-Channel Single-Ended, TDFN (3x3mm) 8-pin
AS1526: 10-bit ADC, 1-Channel, 73ksps, with internal reference, SOIC 8-pin
AS1527: 10-bit ADC, 1-Channel, 73ksps, SOIC 8-pin
AS1530: 12-Bit, 8-Channels, Low Power A/D Converter with 400ksps
AS1531: 12-Bit, 8-Channels, Low Power A/D Converter with 300ksps
AS1534: 12-bit ADC, 8-Channel, 200ksps, 16-bit parallel interface, PQFP 44-pin
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IT251: Frequency Divider, Level Converter and Direction Translator for Encoder Signals
Impulse and frequency divider for incremental encoder signals
Error-free division of quadrature encoder signals, with adjustable ratio from 1:1 to 1:4096,
with separately adjustable divider for marker pulse
Level converter for incremental encoder signals A/B/Z to both directions
(TTL / RS422 to HTL and HTL to TTL / RS422, see drawing)
Includes also translation between various modes of indication of the direction of rotation
Max. input frequency 300 kHz
Power supply 18 - 30 VDC
Compact housing for DIN rail mounting
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The DEWE-ORION-1624-200 is our top of the line DSA (dynamic signal analyzer) A/D card. With 16 simultaneously sampled 24-bit inputs and robust AAF (anti-aliasing filtering), the ORION-1624 provides more than 100 db of S/N ratio via over-sampling sigma-delta ADCs on every channel.
We offer a variety of A/D card series, to fit exactly your application! From the high-end dynamic cards in the DEWE-ORION series, to the multiplexed and highly affordable AD series, we've got just about everything covered. What's that? You want some scope type cards? No problem - have a look at the Spectrum series!
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The AIC1845 is a micropower charge pump DC/DC converter that produces a regulated 5V output. The input voltage range is 2.7V to 5.0V. Extremely low operating current (13uA typical with no load) and a low external-part count (one 0.22uF flying capacitor and two small bypass capacitors at VIN and VOUT ) make the AIC1845 ideally suitable for small, battery-powered ap-plications.
The AIC1845 operates as a PSM (Pulse Skip-ping Modulation) mode switched capacitor volt-age doubler to produce a regulated output and features with thermal shutdown capability and short circuit protection.
The AIC1845 is available in a 6-pin SOT-23 package.
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The AIC1579 is a high-power, high-efficiency voltage-mode DC/DC controller for motherboard VI/O power supply applications. Designed to drive an N-channel MOSFET in a standard buck topology, the AIC1579 features a high voltage CMOS output driver, short-circuit protection, and 8-pin package.
An external 4-bit Digital-to-Analog Converter (DAC) can be used along with the AIC1579 to adjust the output voltage from 2.0V to 3.5V in 0.1V increments. Table 1 on the following page specifies the corresponding output voltage for 16 combinations of DAC inputs as in the typical application circuit.
The 200KHz switching frequency allows for using small external components while maintaining high conversion efficiency. The 11MHz bandwidth and 6V/uS slew rate of the error amplifier ensures high converter bandwidth and fast transient response.
The AIC1579 provides adjustable overcurrent and short-circuit protections by sensing the output current across the on resistance of the external N-channel MOSFET rather than an external low value sense resistor.
The AIC1579L provides lower reference voltage (1.30V) than the default (2.00V, AIC1579) for lower VOUT requirement.
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The AIC1638 is a high efficiency step-up DC/DC converter for applications using 1 to 4 NiMH battery cells. Only three external components are required to deliver a fixed output voltage of 2.7V, 3.0V, 3.3V, 4.5V or 5V. The AIC1638 starts up from less than 0.9V input with 1mA load. Pulse Frequency Modulation scheme brings optimized performance for applications with light output loading and low input voltages. The output ripple and noise are lower compared with the circuits operating in PSM mode.
The PFM control circuit operating in 100KHz (max.) switching rate results in smaller passive components. The space saving SOT-23, SOT-89 and TO-92 packages make the AIC1638 an ideal choice of DC/DC converter for space conscious applications, like pagers, electronic cameras, and wireless microphones.
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