MAXIM Manuals (Industrial)

The MAX6381-MAX6390 microprocessor (µP) supervisory circuits monitor power supply voltages from +1.8V to +5.0V while consuming only 3µA of supply current at +1.8V. Whenever VCC falls below the factory-set reset thresholds, the reset output asserts and remains assert- ed for a minimum reset timeout period after VCC rises above the reset threshold. Reset thresholds are available from +1.58V to +4.63V, in approximately 100mV incre- ments. Seven minimum reset timeout delays ranging from 1ms to 1200ms are available. The MAX6381/MAX6384/MAX6387 have a push-pull active-low reset output. The MAX6382/MAX6385/ MAX6388 have a push-pull active-high reset output, and the MAX6383/MAX6386/MAX6389/MAX6390 have an open-drain active-low reset output. The MAX6384/MAX6385/MAX6386 also feature a debounced manual reset input (with internal pullup resistor). The MAX6387/MAX6388/MAX6389 have an auxiliary input for monitoring a second voltage. The MAX6390 offers a manual reset input with a longer VCC reset timeout period (1120ms or 1200ms) and a shorter manual reset timeout (140ms or 150ms). The MAX6381/MAX6382/MAX6383 are available in 3-pin SC70 packages and the MAX6384–MAX6390 are avail- able in 4-pin SC70 packages.

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MAX9483/MAX9484 are high performance, multi-mode laser diode drivers (LDDs) designed for CD and DVD combo pick-up heads. The driver features three input channels, an RF oscillator, and two precision current amplifier outputs for driving CD and DVD lasers. By selecting the write control signal and input currents on the input channels, the MAX9483/MAX9484 can support multiple CD and DVD read/write standards such as CD-R/RW, DVD-R, DVD+R, DVD-RW, DVD+RW, and DVD-RAM. Peak total output current is 400mA and each channel has a current gain of 100. Oscillator frequency and output amplitude are set using external resistors. The MAX9484 also adds an external resistor pin that allows the oscillation frequency of the two outputs to be set independently. In addition, the MAX9484 is capable of accepting a write control signal in either low voltage differential signaling (LVDS) mode or single-ended mode for reliable high-speed write operations.

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The MAX395 is an 8-channel, serially controlled, single-pole/single-throw (SPST) analog switch that offers eight separately controlled switches. The switches conduct equally well in either direction. On-resistance (100Ω max) is matched between switches to 5Ω max and is flat (10Ω max) over the specified signal range. These CMOS devices can operate continuously with dual power supplies ranging from ±2.7V to ±8V or a single supply between +2.7V and +16V. Each switch can handle rail-to-rail analog signals. The off leakage current is only 0.1nA at +25°C or 5nA at +85°C. Upon power-up, all switches are off, and the internal shift registers are reset to zero. The MAX395 is electrically equivalent to two MAX391 quad switches controlled by a serial interface, and is pin compatible with the MAX335. The serial interface is compatible with SPI™/QSPI™ and Microwire™. Functioning as a shift register, it allows data (at DIN) to be clocked in synchronously with the rising edge of clock (SCLK). The shift register’s output (DOUT) enables several MAX395s to be daisy chained. All digital inputs have 0.8V to 2.4V logic thresholds, ensur- ing both TTL- and CMOS-logic compatibility when using ±5V supplies or a single +5V supply.

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MAX381/MAX383/MAX385 are precision, low-voltage analog switches. The single-pole single-throw MAX381 and double-pole single-throw MAX385 dual switches are normally open. The single-pole double-throw MAX383 has two normally open and two normally closed poles. All three parts offer low on-resistance (less than 35Ω), guaranteed to match to within 2Ω between channels and to remain flat over the specified analog signal range (4Ω max). They also offer low leak- age (less than 250pA at +25°C and less than 2.5nA at +85°C) and fast switching (turn-on time less than 175ns and turn-off time less than 100ns). The MAX381/MAX383/MAX385 are fabricated with Maxim’s low-voltage silicon-gate process for high sys- tem accuracy. Design improvements guarantee extremely low charge injection (<5pC) and low power consumption (<10µW). These monolithic switches operate with a single posi- tive supply (+3V to +15V) or with split supplies (±3V to ±8V) while retaining CMOS-logic input compatibility and fast switching. CMOS inputs provide reduced input loading.

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MAX382/MAX384 are low-voltage, CMOS, 1-of-8 and dual 4-channel muxes with latchable digital inputs. They feature low-voltage operation from a +2.7V to +16.5V single supply and from ±3V to ±8V dual sup- plies. Pin compatible with the DG428/DG429, these muxes offer low on-resistance (100Ω max) matched to within 4Ω max between channels. Additional features include off leakage less than 2.5nA at +85°C and guar- anteed low charge injection (10pC max). ESD protec- tion is greater than 2000V per Method 3015.7.

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MAX394 is a low-voltage quad single-pole double-throw (SPDT) analog switch produced by MAXIM. The working voltage range is ±2.7V to ±8V, or a single supply of +2.7V to +15V. The switch resistance is low, less than 35Ω, and is guaranteed to be matched within 2Ω between channels and to remain flat over the analog signal range (Δ4Ω max). The switching time is also short, with a turn-on time of less than 10ns, a turn-off time of less than 75ns, and a turn-on time of less than 130ns. The static current of the switch is small, less than 1µA at all inputs high or low, making it ideal for portable devices. The switch is fabricated using MAXIM's low-voltage silicon-gate process. Design improvements guarantee extremely low charge injection (10pC), low power consumption (10µW), and electrostatic discharge (ESD) greater than 2000V. Logic inputs are TTL and CMOS compatible and guaranteed over a +0.8V to +2.4V range for supply voltages up to +8V. When supplies exceed +8V, the inputs are typically +0.8V to +4V. Logic inputs and switched analog signals can range anywhere between the supply voltages without damage.

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MAX4503/MAX4504 are low-voltage, dual-supply, single-pole/single-throw (SPST), CMOS analog switches. The MAX4503 is normally open (NO). The MAX4504 is normally closed (NC). These CMOS switches can operate continuously with dual supplies between ±1.V and ±6V. Each switch can handle rail-to-rail analog signals. The off-leakage current is only 1nA at +25°C or 10nA at +85°C. When using ±5V supplies, the digital input is CMOS-logic compatible. A unique logic input architecture allows this even though the parts have no ground pin. For single-supply operation, use the MAX4501/ MAX4502, which are pin-for-pin equivalents.

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The MAX4516/MAX4517 are low-voltage, dual-supply, single-pole/single-throw (SPST) CMOS analog switches with very low switch on-resistance. The MAX4516 is normally open (NO). The MAX4517 is normally closed (NC). These CMOS switches can operate continuously with dual supplies between ±1V and ±6V. Each switch can handle rail-to-rail analog signals. The off-leakage cur- rent maximum is only 1nA at +25°C or 20nA at +85°C. The digital input is referenced to the positive power supply and is CMOS compatible. For pin-compatible parts for use with a single supply, refer to the MAX4514/MAX415.

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The MAX4617/MAX4618/MAX4619 are high-speed, low-voltage, CMOS analog ICs configured as an 8-channel multiplexer (MAX4617), two 4-channel multiplexers (MAX4618), and three single-pole/double-throw (SPDT) switches (MAX4619). These CMOS devices can operate continuously with a +2V to +5.5V single supply. Each switch can handle Rail-to-Rail® analog signals. The off-leakage current is only 1nA at TA = +25°C and 10nA at TA = +85°C. All digital inputs have 0.8V to 2.4V logic thresholds, ensuring TTL/CMOS-logic compatibility when using a single +5V supply.

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The MAX4614/MAX4615/MAX4616 is a low-voltage, high-speed, quad, SPST CMOS analog switch that is pin compatible with the industry-standard 74HC4066/MAX4610 analog switches. On-resistance (maximum 10Ω) is matched between switches to 1Ω maximum and is flat (maximum 1Ω) over the specified signal range. Each switch handles V+ to GND analog signal levels. Maximum off-leakage current is only 1nA at TA = +25°C and 6nA at TA = +85°C. The MAX4614 has four normally open (NO) switches, and the MAX4615 has four normally closed (NC) switches. The MAX4616 has two NO switches and two NC switches. These CMOS switches operate from a single +2V to +5.5V supply. All digital inputs have +0.8V and +2.4V logic thresholds, ensuring TTL/CMOS- logic compatibility when using a single +5V supply.

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The MAX391/MAX392/MAX393 are precision, quad, single-pole/single-throw (SPST) analog switches designed to operate at +3V, +5V, or ±5V. The MAX391 has four normally closed (NC) switches, and the MAX392 has four normally open (NO) switches. The MAX393 has two NO and two NC switches. All three devices offer low leakage (100pA max) and fast switching speeds (tON ≤ 130ns, tOFF ≤ 75ns). Power consumption is just 1µW—ideal for battery-operated equipment. All devices operate from a single +3V to +15V supply or from dual ±3.0V to ±8V supplies.

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The MAX4624/MAX4625 are low-on-resistance, low-voltage single-pole/double-throw (SPDT) analog switches that operate from a single +1.8V to +5.5V supply. The MAX4624 has break-before-make switching; the MAX4625 has make-before-break switching. These devices also have fast switching speeds (tON = 50ns max, tOFF = 50ns max). When powered from a +5V supply, the MAX4624/MAX4625 offer 1Ω max on-resistance (RON), with 0.12Ω max RON matching and flatness. The digital logic inputs are TTL compatible when using a single +5V supply. These switches also feature overcurrent protec-tion to prevent damage from short circuits and exces-sive loads. The MAX4624/MAX4625 are pin compatible with the MAX4544 and are available in space-saving standard 6-pin SOT23 packages, as well as the 1.0mm high Thin SOT package.

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The MAX4626/MAX4627/MAX4628 are low-on-resistance, low-voltage, single-pole/single-throw (SPST) analog switches that operate from a +1.8V to +5.5V sin- gle supply.

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The MAX4641/MAX4642/MAX4643 are monolithic, dual, single-pole/single-throw (SPST) switches that can operate from a single supply ranging from +1.8V to +5.5V. The MAX4641/MAX4642/MAX4643 provide low 4Ω on-resistance (RON), 0.6Ω RON matching between channels, and 1Ω RON flatness over the entire analog signal range. These devices offer fast switching times of less than 20ns while consuming less than 0.01µW of quiescent power. The MAX4641 has two normally open (NO) switches, and the MAX4642 has two normally closed (NC) switches. The MAX4643 has one NO switch and one NC switch. All three devices have low 0.35nA leakage currents over the entire temperature range. The MAX4641/ MAX4642/MAX4643 are available in small 8-pin µMAX and 8-pin QFN packages.

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The MAX4674 is a low-voltage CMOS analog switch containing four 2:1 multiplexers/demultiplexer. When powered from a single +5V supply, it features a low 4Ω max on-resistance (RON), 0.4Ω max RON matching between channels, and 0.8Ω RON flatness over the entire signal range. Off-leakage current is only 0.5nA max at +25°C. The MAX4674 features fast turn-on (tON) and turn-off (tOFF) times of 18ns and 6ns, respectively, and is available in QFN, QSOP, TSSOP, and SO packages. This low-voltage multiplexer operates with a +1.8V to +5.5V single supply. All digital inputs have +0.8V and +2.4V logic thresholds, ensuring TTL/CMOS-logic compatibility with +5V operation.

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The MAX4644 is a single-pole/double-throw (SPDT) switch that operates from a single supply ranging from +1.8V to +5.5V. It provides low 4Ω on-resistance (RON) as well as 1Ω RON flatness over the entire analog-signal range. The MAX4644 offers fast switching times of less than 20ns while ensuring break-before-make operation. It typically consumes only 0.01μW of quiescent power, making it suitable for use in low-power, portable applications. The MAX4644’s features include low leakage currents over the entire temperature range, TTL/CMOS-compatible digital logic, and excellent AC characteristics. It is packaged in either a small 8-pin μMAX® or a tiny 6-pin SOT23.

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The MAX4634 is a low-voltage multiple switch device launched by MAXIM company, which has the characteristics of low resistance, low leakage current and fast switching. It is suitable for battery-powered equipment, audio and video signal routing, low-voltage data acquisition systems, sampling and holding circuits, and communication circuits.

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The MAX4635/MAX4636 are fast, dual 4Ω single-pole/double-throw (SPDT) analog switches that operate with supply voltages from +1.8V to +5.5V. High switching speeds, 1Ω on-resistance flatness, and low power consumption make these devices ideal for audio/video, communications, and battery-operated devices. Containing two independently controllable SPDT switches in 10-pin µMAX and 10-pin 3mm x 3mm thin QFN packages, the MAX4635/MAX4636 use little board space, and have low power consumption ensuring minimal impact on your power budget. The analog signal range extends to the supply rails. The MAX4635 has inverted logic compared to the MAX4636.

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MAX4677/MAX4678/MAX4679 are quad analog switches with on-resistance of 1.6 ohms, operating from dual ±5V supply. They feature low distortion and reliability.

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