MAXIM Manuals

The MAX7356/MAX7357/MAX7358 8-channel I2C switches/multiplexers expand the main I2C bus to any combination of 8 extended I2C buses. They enable a master on the main bus to isolate and communicate with devices or groups of devices that may otherwise have slave address conflicts. Any extended bus can be connected or disconnected by control packets from the main I2C bus writing to the main control register of these I2C switches. The MAX7357 and MAX7358 feature an enhanced mode that includes a built-in timer used to monitor all extended buses for lock-up conditions. If the clock or data line of any of these buses is low for more than 25ms (typ), a lock condition is detected. An optional interrupt can be generated through the bidirectional RST/INT. The master can read the bus lock-up register to find out which extended bus is locked up. The mas- ter can also enable the MAX7357 or the MAX7358 to send a “flush-out” sequence on the faulty channel. There is an optional preconnection check that can be enabled to toggle the extended bus clock and data line low then high to ensure the downstream bus is not locked high prior to connecting it to the host bus. The MAX7356/MAX7357/MAX7358 are transparent to signals sent and received at each channel, allowing multiple masters. Any device connected to an I2C bus can transmit and receive signals; however, only the master connected to the host side of the MAX7356/ MAX7357/MAX7358 should address the device.

The MAX4989 is a bidirectional 2-of-4 USB 2.0 crosspoint switch. The MAX4989 features the low on-capacitance and low on-resistance necessary to switch USB 2.0 low-/full-/Hi-Speed signals at data rates up to 480Mbps. This device allows any 2-of-4 USB pairs to be connected together and is configured through a simple 3-input control logic interface. The MAX4989 operates from a single +2.7V to +5.5V supply and features an internal charge pump to permit full rail-to-rail swing. This device also features a high-impedance shutdown mode to reduce supply current to 100nA (typ). The MAX4989 is available in a 14-pin, 3mm x 3mm TDFN package and operates over the extended -40°C to +85°C temperature range.

The MAX4947/MAX4948 are low-voltage, low-power, high-performance analog switches that operate from a single +1.8V to +5.5V supply and have a low switching capacitance of 30pF for high switching speeds and low losses.

MAX4996/MAX4996L are triple DPDT analog switches that operate from a single +2.5V to +5.5V supply, and feature 2.0Ω (typ) on-resistance, low 6pF (typ) on-capacitance, and low power-supply current consumption. The MAX4996/MAX4996L combine the low capacitance and low resistance necessary for high-frequency switching applications in portable electronics. MAX4996/MAX4996L have three logic inputs to control the switches in pairs. MAX4996 has an active-high enable input (EN) to disable the switches, while the MAX4996L has an active-low enable input (EN) to disable the switches. The enable input decreas- es the supply current and also places the COM_ out- puts in a high-impedance state. The MAX4996/MAX4996L feature a 5µA (max) supply- current consumption when the logic inputs are not rail-to-rail. This feature is especially valuable in applica- tions where direct interface to low-voltage processors is necessary. MAX4996/MAX4996L are available in a space- saving 24-pin (3.5mm x 3.5mm) TQFN package and operate over the -40°C to +85°C temperature range.

The MAX4991-MAX4994 are low on-resistance analog switches that operate from a single +1.8V to +5.5V supply. Their features include a slow turn-on time to reduce clicks and pops caused by coupling capacitors and audio amplifiers with a DC output bias. This feature provides click-and-pop reduction without adding additional parts for existing architectures. The MAX4991-MAX4992 are dual single-pole/double-throw (SPDT) switches, while the MAX4993-MAX4994 are double-pole/double-throw (DPDT) switches. The MAX4993-MAX4994 feature an active-low enable input (EN) that sets all the channels to high impedance and reduces supply current when driven high. These devices have 0.3Ω on-resistance and 0.004% THD+N to route high fidelity audio signals. The MAX4991-MAX4994 are available in space-saving 10-pin UTQFN (1.4mm x 1.8mm) package, and are specified for operation over the -40°C to +85°C extended temperature range.

The MAX14504/MAX14505/MAX14505A/MAX14506 are dual single-pole/double-throw (SPDT) audio switches with negative signal capability that allows signals from -VCC to +VCC to pass without distortion. They feature high continuous current ratings of 550mA (continuous) and 850mA (pulsed). These analog switches have low on-resistance, low supply current, and operate from a single +2.3V to +5.5V supply. The MAX14505/MAX14505A have internal shunt switches that discharge the audio amplifier AC-coupling capacitance at the normally open (NO) terminals. This reduces click-and-pop sounds that occur when switching audio signals between precharged points. The MAX14504/ MAX14505/MAX14505A/MAX14506 control the switches with control bit, CB, and feature an enable input, EN, that place COM in a high-impedance mode. The MAX14504/MAX14505/MAX14505A/MAX14506 are fully specified to operate from a single +2.3V to +5.5V power supply. These devices are available in a 1.56mm x 2.14mm, 12-bump WLP package, and operate over the -40°C to +85°C extended temperature range.

The MAX14531E–MAX14534E high ESD-protected DP3T switches multiplex Hi-Speed (480 Mbps) USB signals, low/full-speed USB signals, and analog sig- nals such as AC-coupled audio or video through any of three channels. These devices combine the low on- capacitance (CON) and low on-resistance (RON) nec- essary for high-performance switching applications in portable electronics, and include an internal negative supply to pass AC-coupled audio signals that swing below ground (down to -2.0V). The MAX14531E– MAX14534E operate from a +2.7V to +5.5V supply. The MAX14531E–MAX14534E have a shutdown func- tion to reduce supply current and set all channels to high impedance. The MAX14531E–MAX14534E feature a VBUS detection function through the CB0 input to automatically switch to the default USB signal path upon detection of a valid VBUS signal. The MAX14532E/MAX14534E feature internal shunt resis- tors on audio channels to reduce clicks and pops heard at the output. The MAX14531E–MAX14534E are available in a space- saving, 12-bump, 1.5mm x 2.0mm WLP package and operate over the -40°C to +85°C temperature range. Applications include Cell Phones MP3 Players PDAs Notebook Computers.

This document introduces the characteristics of the MAX14550E USB host charger identification analog switch.

The MAX14508E–MAX14511E/MAX14509AE are high-ESD-protected DPDT switches that multiplex Hi-Speed (480Mbps) USB and analog signals such as AC-coupled audio or video. These devices combine the low on-capacitance (CON) and low on-resistance (RON) necessary for high-performance switching applications in portable electronic devices, and include an internal negative supply to pass audio signals that swing below ground (down to VCC - 5.0V). The MAX14508E–MAX14511E/MAX14509AE also handle USB low-/full-speed signaling and operate from a +2.7V to +5.0V supply. The MAX14508E–MAX14511E feature +5.5V fault protection on COM1 and COM2, making these devices compliant with the USB 2.0 fault-protection specification. The MAX14510E/MAX14511E feature a VBUS detection input (VB) to automatically switch to the USB signal path upon detection of a valid VBUS signal. The MAX14508E/ MAX14510E feature internal shunt resistors on the audio path to reduce clicks and pops heard at the output. The MAX14508E/MAX14509E/MAX14509AE have an enable input (EN) to reduce supply current and set all channels to high impedance when driven low. The MAX14508E–MAX14511E/MAX14509AE are available in a space-saving, 10-pin, 1.4mm x 1.8mm UTQFN package, and operate over the -40°C to +85°C temperature range.

The MAX14578E/MAX14578AE are USB charger detectors compliant with USB Battery Charging Revision 1.1. They detect USB standard downstream ports (SDPs), USB charging downstream ports (CDPs), or dedicated charger ports (DCPs), and control an external lithium-ion (Li+) battery charger. The devices implement USB Battery Charging Revision 1.1-compliant detection logic including data contact detection, D+/D- short detection, charging downstream port identification, and optional USB dead-battery charging support. The MAX14578AE features an enable (EN) input and an LDO output. In addition, the internal USB switch is compliant to Hi-Speed USB, full-speed USB, and low-speed USB signals. The devices feature low on-resistance, low on-resistance flatness, and very low capacitance. The devices also feature high-ESD protection up to Q15kV Human Body Model on the CD+ and CD- pins. In addition, the MAX14578E/MAX14578AE feature Apple and Sony charge.

The MAX14778 is a dual 4:1 analog multiplexer that supports analog signals up to ±25V with a single 3.0 to 5.5V supply. Each multiplexer has separate control inputs to allow independent switching, making the device ideal for multiplexing different communications signals with the same connector pins.

MAX14585/MAX14585A are high-performance USB and audio switches with negative signal capability and high-voltage VBUS detection from Maxim Integrated.

This data sheet introduces the characteristics of MAX14760/MAX14762/MAX14764 series low leakage current analog switches, including working voltage range, signal range, switch resistance, switch current, etc.