The INA302 and INA303 devices feature a high common-mode, bidirectional, current-sensingamplifier and two high-speed comparators to detect out-of-range current conditions. The INA302comparators are configured to detect and respond to overcurrent conditions. The INA303 comparatorsare configured to respond to both over- and undercurrent conditions in a windowed configuration.The device features an adjustable limit threshold range for each comparator set using an externallimit-setting resistor. These current-shunt monitors can measure differential voltage signals oncommon-mode voltages that can vary from –0.1 V up to 36 V, independent of the supply.
The open-drain alert outputs can be configured to operate in either a transparent mode(output status follows the input state) or in a latched mode (alert output is cleared when thelatch is reset). The alert response time for comparator 1 is under 1 µs and the alert response forcomparator 2 is set through an external capacitor ranging from 2 µs to 10 s.
This device operates from a single 2.7-V to 5.5-V supply, drawing a maximum supplycurrent of 950 µA. The device is specified over the extended operating temperature range (–40°C to+125°C), and is available in a 14-pin TSSOP package.
Products containing the "INA303" keyword are: INA30311-TR1 , INA30311BLK , INA30311BLKG , INA30311TR1G , INA303A1IPW , INA303A1IPW , INA303A1IPWR , INA303A1IPWR , INA303A2IPW , INA303A2IPW , INA303A2IPWR , INA303A3IPW , INA303A3IPW , INA303A3IPWR , INA303A3IPWR , INA303EVM , INA303EVMAll trademarks are the property of their respective owners.
Status | ACTIVE |
SubFamily | Current sense amplifiers analog output |
Common mode voltage | 36 |
Rating | Catalog |
Features | Alert Function^Bi-directional^Low-side Capable |
Supply Voltage | 2.7 |
Input offset (+/-) | 30^50^80 |
Input offset drift (+/-) | 0.1 |
Gain | 100^20^50 |
Gain error | 0.1^0.15^0.2 |
CMRR | 100 |
Bandwidth | 550^500^450 |
Iq | 1.1 |
Approx. price | 1.20 | 1ku |
Operating temperature range | -40 to 125 |
Package Group | TSSOP|14 |
Package size: mm2:W x L (PKG) | [pf]14TSSOP[/pf]: 32 mm2: 6.4 x 5 (TSSOP|14) |