MAX408076V, High-Side, Current-Sense Amplifiers with Voltage Output | Instrumentation, OP Amps, Buffer Amps | 23 | Active | The MAX4080/MAX4081 are high-side, current-sense amplifiers with an input voltage range that extends from 4.5V to 76V making them ideal for telecom, automotive, backplane, and other systems where high-voltage current monitoring is critical. The MAX4080 is designed for unidirectional current-sense applications and the MAX4081 allows bidirectional current sensing. The MAX4081 single output pin continuously monitors the transition from charge to discharge and avoids the need for a separate polarity output. The MAX4081 requires an external reference to set the zero-current output level (VSENSE= 0V). The charging current is represented by an output voltage from VREFto VCC, while discharge current is given from VREFto GND.For maximum versatility, the 76V input voltage range applies independently to both supply voltage (VCC) and common-mode input voltage (VRS+). High-side current monitoring does not interfere with the ground path of the load being measured, making the MAX4080/MAX4081 particularly useful in a wide range of high-voltage systems.The combination of three gain versions (5V/V, 20V/V, 60V/V = F, T, S suffix) and a user-selectable, external sense resistor sets the full-scale current reading and its proportional output voltage. The MAX4080/MAX4081 offer a high level of integration, resulting in a simple, accurate, and compact current-sense solution.The MAX4080/MAX4081 operate from a 4.5V to 76V single supply and draw only 75µA of supply current. These devices are specified over the automotive operating temperature range (-40°C to +125°C) and are available in a space-saving 8-pin µMAX® or SO package.Applications48V Telecom and Backplane Current MeasurementAutomotive (12V, 24V, or 42V Batteries)Avalanche Photodiode and PIN-Diode Current MonitoringBidirectional Motor ControlGeneral System/Board-Level Current SensingPower-Management SystemsPrecision High-Voltage Current Sources |
| Instrumentation, Op Amps, Buffer Amps | 15 | Active | |
| Instrumentation, OP Amps, Buffer Amps | 20 | Active | |
| Video Amps and Modules | 9 | Active | |
| Instrumentation, Op Amps, Buffer Amps | 9 | Active | |
| Linear | 6 | Active | |
MAX4094Single/Dual/Quad, Micropower, Single-Supply, Rail-to-Rail Op Amps | Linear | 3 | Active | The single MAX4091, dual MAX4092, and quad MAX4094 operational amplifiers combine excellent DC accuracy with rail-to-rail operation at the input and output. Since the common-mode voltage extends from VCCto VEE, the devices can operate from either a single supply (2.7V to 6V) or split supplies (±1.35V to ±3V). Each op amp requires less than 130µA of supply current. Even with this low current, the op amps are capable of driving a 1kΩ load, and the input-referred voltage noise is only 12nV/√Hz. In addition, these op amps can drive loads in excess of 2000pF.The precision performance of the MAX4091/MAX4092/MAX4094 combined with their wide input and output dynamic range, low-voltage, single-supply operation, and very low supply current, make them an ideal choice for battery-operated equipment, industrial, and data acquisition and control applications. In addition, the MAX4091 is available in space-saving 5-pin SOT23, 8-pin µMAX®, and 8-pin SO packages. The MAX4092 is available in 8-pin µMAX and SO packages, and the MAX4094 is available in 14-pin TSSOP and 14-pin SO packages.ApplicationsBattery-Powered InstrumentsCellular HandsetsData Acquisition and ControlDigital Cameras (DIGICAMs)Glucose MetersGPS SolutionsIP CameraLow-Voltage Signal ConditioningMP3 and Portable Media PlayersPortable Equipment |
| Instrumentation, OP Amps, Buffer Amps | 17 | Active | |
| Video Amps and Modules | 2 | Obsolete | |
| Op Amp Evaluation Boards | 6 | Active | |
