HT92112/HT92122
Low Power OPAMP
Features
General Description
•ꢀ WideꢀOperatingꢀVoltage
TheꢀHT92112/HT92122ꢀfamilyꢀofꢀlowꢀpowerꢀop-
erationalꢀamplifiersꢀoffersꢀtheꢀbenefitsꢀofꢀlowꢀpowerꢀ
consumption,ꢀlowꢀoffsetꢀvoltageꢀandꢀlowꢀoffsetꢀdrift.ꢀ
Theyꢀhaveꢀlowꢀ1/fꢀnoiseꢀandꢀhaveꢀgoodꢀPSRRꢀandꢀ
•ꢀ Lowꢀinputꢀoffsetꢀvoltageꢀ
•ꢀ LowꢀQuiescentꢀCurrent
•ꢀ UnityꢀGainꢀStableꢀ(HT92112)
•ꢀ Non-unityꢀGainꢀStableꢀ(HT92122)
•ꢀ RailꢀtoꢀRailꢀinputꢀandꢀoutputꢀoperation
•ꢀ -40˚Cꢀtoꢀ+85˚CꢀOperatingꢀTemperatureꢀRange
•ꢀ Dualꢀamplifiersꢀperꢀpackage
•ꢀ Packageꢀtypes:ꢀ8-pinꢀSOP/MSOP
CMRRꢀcharacteristics.ꢀTheꢀdevices
rail-to-railꢀinputꢀandꢀoutputꢀoperation.
hasꢀaꢀgainꢀbandwidthꢀproductꢀofꢀ14kHzꢀwhileꢀtheꢀ
HT92122ꢀhasꢀaꢀgainꢀbandwidthꢀproductꢀofꢀ100kHz.ꢀ
Theseꢀdevicesꢀoperateꢀwithꢀaꢀsingleꢀsupplyꢀvolt-
ageꢀasꢀlowꢀasꢀ1.4Vꢀandꢀwithꢀaꢀlowꢀsupplyꢀcurrentꢀofꢀ
ꢀ
alsoꢀprovideꢀfullꢀ
TheꢀHT92112ꢀ
ꢀ
1μA/amplifierꢀ(Max.).ꢀTheseꢀlowꢀpowerꢀoperational
ꢀ
amplifiersꢀcanꢀbeꢀimplementedꢀinꢀaꢀwideꢀrangeꢀofꢀ
applicationsꢀforꢀportableꢀdevicesꢀandꢀbatteryꢀpoweredꢀ
equipment.
Applications
•ꢀ TollboothꢀTagsꢀ
Withꢀtheirꢀsingleꢀsupplyꢀoperationꢀandꢀlowꢀpowerꢀ
consumptionꢀfeaturesꢀcoupledꢀwithꢀtheirꢀlowꢀoffsetꢀ
voltageꢀtheseꢀoperationalꢀamplifiersꢀareꢀsuitableꢀforꢀ
useꢀinꢀaꢀwideꢀrangeꢀofꢀapplications.ꢀWithꢀregardꢀtoꢀ
packaging,ꢀbothꢀdevicesꢀareꢀsuppliedꢀinꢀ8-pinꢀSOP/
MSOPꢀpackageꢀformats.ꢀ
•ꢀ WearableꢀProducts
•ꢀ TemperatureꢀMeasurement
•ꢀ BatteryꢀPoweredꢀSystems
Block Diagram
VDD
1OUT
2OUT
1IN-
2IN-
-
-
+
+
1IN+
2IN+
VSS
Pin Assignment
1OUT
VDD
1
2
3
4
8
7
6
5
2OUT
2IN-
1IN-
1IN+
VSS
2IN+
HT92112/HT92122
8 SOP-A/MSOP-A
Rev. 1.00
1
December 08, 2017