Analog Devices

The ADF7030 is a low power, high performance, integrated radio transceiver supporting narrowband operation in the 169.4MHz to 169.6MHz ISM bands. The ADF7030 supports transmit and receive operation at 2.4kbps and 4.8kbps using 2GFSK modulation and transmit operation at 6.4kbps using 4GFSK modulation.The ADF7030 features an on-chip ARM®Cortex®-M0 processor that performs radio control and packet management.ApplicationsWireless M-Bus Mode N (EN 13757-4)Smart meteringSocial alarmsActive tag asset tracking

The ADF7241 is a highly integrated, low power, and high performance transceiver for operation in the global 2.4 GHz ISM band. It is designed with emphasis on flexibility, robustness, ease of use, and low current consumption. The IC supports the IEEE 802.15.4-2006 2.4 GHz PHY requirements in both packet and data streaming modes. With a minimum number of external components, it achieves compliance with the FCC CFR47 Part 15, ETSI EN 300 440 (Equipment Class 2), ETSI EN 300 328 (FHSS, DR > 250 kbps), and ARIB STD T-66 standards.The ADF7241 complies with the IEEE 802.15.4-2006 2.4 GHz PHY requirements with a fixed data rate of 250 kbps and DSSS-OQPSK modulation. The transmitter path of the ADF7241 is based on a direct closed-loop VCO modulation scheme using a low noise fractional-N RF frequency synthesizer. The automatically calibrated VCO operates at twice the fundamental frequency to reduce spurious emissions and avoid PA pulling effects. The bandwidth of the RF frequency synthesizer is automatically optimized for transmit and receive operations to achieve best phase noise, modulation quality, and synthesizer settling time performance. The transmitter output power is programmable from −20 dBm to +4 dBm with automatic PA ramping to meet transient spurious specifications. An integrated biasing and control circuit is available in the IC to significantly simplify the interface to external PAs.For more information, please refer to the data sheet.ApplicationsWireless sensor networksAutomatic meter reading/smart meteringIndustrial wireless controlHealthcareWireless audio/videoConsumer electronicsZigBee

The ADF7901 is a low power OOK/FSK UHF transmitter designed for use in RF remote control devices. The device is capable of Frequency Shift Keying (FSK) modulation on eight different channels, selectable by three external control lines. OOK modulation is performed by modulating the PA control line.The on-chip VCO operates at 2x the output frequency. The divide by 2 at the output of the VCO reduces the amount of PA feedthrough. As a result of this, OOK modulation depths of greater than 50dB are easily achievable.The FSK_ADJ and ASK_ADJ resistors can be adjusted in the system to optimize output power for each modulation scheme. An additional 1.5dB of output power is provided for the lower bank of channels to adjust for antenna performance.The CE line allows the transmitter to be powered down completely. In this mode the leakage current is typically 0.1µA.

The ADF7902 is a low power UHF receiver. The device demodulates frequency shift keyed (FSK) signals with 34.8 kHz frequency deviation and at data rates of up to 2 kbps. There are eight specific RF channels ranging from 369.5 MHz to 395.9 MHz on which the receiver can operate. Each channel is selectable by configuring three digital control lines. The ADF7902 is designed for low power applications, consuming 18.5 mA (typical) during normal operation and 1 μA (maximum) in standby mode.

The ADF9010 is a fully integrated RF Tx modulator and Rx analog baseband front end that operates in the frequency range from 840 MHz to 960 MHz. The receive path consists of a fully differential I/Q baseband PGA, low-pass filter, and general signal conditioning before connecting to an Rx ADC for baseband conversion. The Rx LPF gain ranges from 3 dB to 24 dB, programmable in 3 dB steps. The Rx LPF features four programmable modes with cutoff frequencies of 330 kHz, 880 kHz, and 1.76 MHz, or the filter can be bypassed if necessary.The transmit path consists of a fully integrated differential Tx direct I/Q upconverter with a high linearity PA driver amplifier. It converts a baseband I/Q signal to an RF carrier-based signal between 840 MHz and 960 MHz. The highly linear transmit signal path ensures low output distortion.Complete local oscillator (LO) signal generation is integrated on chip, including the integer-N synthesizer and VCO, which generate the required I and Q signals for transmit I/Q upconversion. The LO signal is also available at the output to drive an external RF demodulator. Control of all the on-chip registers is via a simple 3-wire serial interface. The device operates with a power supply ranging from 3.15 V to 3.45 V and can be powered down when not in use.APPLICATIONS900 MHz RFID readersUnlicensed band 900 MHz applications

The ADG1204 is a complementary metal-oxide semiconductor (CMOS) analog multiplexer, comprising four single channels designed on aniCMOS (industrial CMOS) process.iCMOS®is a modular manufacturing process that combines high voltage CMOS and bipolar technologies. It enables the development of a wide range of high performance analog ICs capable of 33 V operation in a footprint that no previous generation of high voltage devices has been able to achieve. Unlike analog ICs using conventional CMOS processes, iCMOS components can tolerate high supply voltages while providing increased performance, dramatically lower power consumption, and reduced package size.The ultralow capacitance and charge injection of this multiplexer makes it an ideal solution for data acquisition and sample-andhold applications, where low glitch and fast settling are required. Fast switching speed coupled with high signal bandwidth makes the device suitable for video signal switching. iCMOS construction ensures ultralow power dissipation, making the device ideally suited for portable and battery-powered instruments.The ADG1204 switches one of four inputs to a common output, D, as determined by the 3-bit binary address lines: A0, A1, and EN. Logic 0 on the EN pin disables the device. Each switch conducts equally well in both directions when on and has an input signal range that extends to the supplies. In the off condition, signal levels up to the supplies are blocked. All switches exhibit break-before-make switching action.Product Highlights1. 1.5 pF off capacitance (±15 V supply).<1 pC charge injection.3 V logic-compatible digital inputs: VIH = 2.0 V, VIL = 0.8 V.No VL logic power supply required.Ultralow power dissipation: <0.03 μW.14-lead TSSOP and 12-lead, 3 mm × 3 mm LFCSP packages.ApplicationsAutomatic test equipmentData acquisition systemsBattery-powered systemsSample-and-hold systemsAudio signal routingVideo signal routingCommunication systems