MAXIM Manuals

The MAX2066 is a high-linearity digital variable-gain amplifier (VGA) designed to interface with 50Ω systems operating in the 50MHz to 1000MHz frequency range. It features a digital attenuator and amplifier, which can be controlled using either an SPI-compatible interface or a parallel bus. The device has a gain of 22dB, a noise figure of 5.2dB (including attenuator insertion loss), and a high OIP3 level of +42.4dBm. It is ideal for various receiver and transmitter applications.

The MAX2065 high-linearity, analog/digital variable-gain amplifier (VGA) is designed to operate in the 50MHz to 1000MHz frequency range with two independent attenuators (see the Typical Application Circuit). The digital attenuator is controlled as a slave peripheral using either the SPI-compatible interface or a parallel bus with 31dB total adjustment range in 1dB steps. An added feature allows “rapid-fire” gain selection between each of four steps, preprogrammed by the user through the SPI-compatible interface. The 2-pin control allows the user to quickly access any one of four customized attenuation states without reprogramming the SPI bus. The analog attenuator is controlled using an external voltage or through the SPI-compatible interface using an on-chip 8-bit DAC. Because each of the three stages has its own RF input and RF output, this component can be configured to either optimize NF (amplifier configured first), OIP3 (amplifier last), or a compromise of NF and OIP3. The device’s performance features include 22dB amplifier gain (amplifier only), 6.5dB NF at maximum gain (includes attenuator insertion losses), and a high OIP3 level of +42dBm. Each of these features makes the MAX2065 an ideal VGA for numerous receiver and transmitter applications. In addition, the MAX2065 operates from a single +5V supply with full performance, or a single +3.3V supply with slightly reduced performance, and has an adjustable bias to trade current consumption.

The MAX2058 is a high-linearity digital-variable-gain amplifier (DVGA) from Texas Instruments. It provides a 62dB total gain range and typical output IP3 and output P1dB levels of +32.3dBm and +19dBm respectively. The device is ideal for a variety of applications including RFID handheld and portal readers, as well as single and multicarrier 700MHz to 1200MHz GSM/EDGE, cdma2000, WCDMA, and iDEN base stations. The MAX2058 provides a high level of component integration, including two 5-bit, 31dB digital attenuators, two diodes, a two-stage driver amplifier, a loopback mixer, and a serial interface to control the attenuators. The MAX2058 is pin compatible with the MAX2059 1800MHz to 2200MHz DVGA, facilitating an easy design-in for applications where a common PC board layout is used for both frequency bands. The MAX2058 is available in a 40-pin thin QFN package with an exposed paddle. Electrical performance is guaranteed over a -40°C to +85°C temperature range.

The MAX2056 is a high-performance variable-gain amplifier (VGA) from MAXIM, suitable for GSM, cdma2000®, W-CDMA, iDEN® and other communication systems. It operates in the frequency range of 800MHz~1000MHz and has 15.5dB gain, 4.5dB noise figure and 23.5dBm output 1dB compression point.

The MAX2057 is a high-performance variable-gain amplifier (VGA) designed to operate in the 1300MHz to 2700MHz frequency range. It features 15.5dB of gain, 6dB of noise figure, and an output 1dB compression point of 23.8dBm.

The MAX2055 is a high-performance, digitally controlled, variable-gain, differential analog-to-digital converter (ADC) driver/amplifier (DVGA) designed for use from 30MHz to 300MHz in base station receivers. The device integrates a digitally controlled attenuator and a high-linearity single-ended-to-differential output amplifier, which can either eliminate an external transformer, or can improve the even-order distortion performance of a transformer-coupled circuit, thus relaxing the requirements of the anti-alias filter preceding an ADC. Targeted for ADC driver applications to adjust gain either dynamically or as a one-time channel gain setting, the MAX2055 is ideal for applications requiring high performance. The attenuator provides 23dB of attenuation range with ±0.2dB accuracy. The MAX2055 is available in a thermally enhanced 20-pin TSSOP-EP package and operates over the -40°C to +85°C temperature range. Application areas include cellular base stations, PHS/PAS infrastructure receiver gain control, broadband systems, automatic test equipment, terrestrial links, and high-performance ADC drivers.

The MAX2027 is a high-performance, digitally controlled variable-gain amplifier designed for use from 50MHz to 400MHz. It integrates a digitally controlled attenuator and a high-linearity IF amplifier in one package. The MAX2027 is ideal for applications requiring high performance and is targeted for IF signal chains to adjust gain either dynamically or as a one-time channel gain setting. The attenuator provides 23dB of attenuation range with ±0.05dB state-to-state accuracy. The MAX2027 is available in a thermally enhanced 20-pin TSSOP-EP package and operates over the -40°C to +85°C temperature range.

The MAX1385/MAX1386 are RF LDMOS power devices for cellular base stations. They include a high-side current-sense amplifier, external diode-connected transistors to monitor LDMOS temperatures, an internal temperature sensor, a 12-bit ADC, two gate-drive channels, 8-bit coarse and 10-bit fine DACs, a gate-drive amplifier, autocalibration features, and an I2C/SPI-compatible serial interface.

MAX11008 is a LDMOS power management chip for wireless base stations launched by MAXIM. It supports up to 5A output current and has two programmable gain analog input channels, two programmable gain current detection channels, two programmable gain temperature detection channels and two analog auxiliary input channels. It also integrates a 12-bit SAR ADC and 4K byte EEPROM, supports SPI and I2C communication interfaces.

The MAX19527 is an octal 12-bit 50Msps ADC that operates from a single 1.8V supply and features low power consumption and high dynamic performance. It is ideal for medical imaging instrumentation and digital communications applications.

MAX19517 is a dual-channel, 10-bit, 130Msps analog-to-digital converter from Texas Instruments that is ideal for zero-intermediate frequency (ZIF) and high-intermediate frequency (IF) sampling applications.

The MAX19516 is a 10-bit, 100Msps dual-channel analog-to-digital converter (ADC) that supports DC-coupled inputs for a wide range of RF, IF, and baseband front-end components. It provides excellent dynamic performance from baseband to frequencies beyond 400MHz.

The MAX19515 is a dual-channel analog-to-digital converter (ADC) with 10-bit resolution and a maximum sample rate of 65Msps. It accepts a wide 0.4V to 1.4V input common-mode voltage range, allowing DC-coupled inputs for a wide range of RF, IF, and baseband front-end components. The MAX19515 provides excellent dynamic performance from baseband to high input frequencies beyond 400MHz, making it ideal for zero-intermediate frequency (ZIF) and high-intermediate frequency (IF) sampling applications. The typical signal-to-noise ratio (SNR) performance is 60.1dBFS and typical spurious-free dynamic range (SFDR) is 82dBc at fIN = 70MHz and fCLK = 65MHz. The MAX19515 operates from a 1.8V supply. Additionally, an integrated, self-sensing voltage regulator allows operation from a 2.5V to 3.3V supply (AVDD). The digital output drivers operate on an independent supply voltage (OVDD) over the 1.8V to 3.5V range. The analog power consumption is only 43mW per channel at VAVDD = 1.8V. In addition to low operating power, the MAX19515 consumes only 1mW in power-down mode and 15mW in standby mode. Various adjustments and feature selections are available through programmable registers that are accessed through the 3-wire serial-port interface. Alternatively, the serial-port interface can be disabled, with the three pins available to select output mode, data format, and clock-divider mode. Data outputs are available through a dual parallel output.

The MAX1437B is an 8-channel, 12-bit analog-to-digital converter (ADC) optimized for low-power and high-dynamic performance in medical imaging instrumentation and digital communications applications.