AMERICAN MICROSYSTEMS, June, 1998 Preliminary micron CMOS CW
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DETLV02
AMERICAN MICROSYSTEMS,
June, 1998 Preliminary
micron CMOS CWLDouble Poly
LOW-VOLTAGE DETECTOR
AVDD
FEATURES
Less then 100uA supply current High voltage measurement capability (around 6.5V) Clocked comparator fast measurements Multi-input measurements capability Equipped with power-down circuits
IBIAS1 CMPN MTRSENS MS_LVN_SEL
DESCRIPTION
This low-voltage detector circuit used monitor power supply voltages signals. circuit consists main parts: resistor divider voltage measured high speed comparator. comparator clocked, clock source required. This circuit also requires voltage reference digital input outputs standard CMOS levels
AVSS
TRUTH TABLE
MS_LVN Measures supply Voltage Positive Comparator Input mtrsens pin.
DESCRIPTION
NAME CMPN MTRSENS MS_LVN_SE IBIAS1 AVDD AVSS TYPE Analog input Analog input Digital input Digital input Digital output Analog input Analog supply Analog supply Ground supply Digital Input
DESCRIPTION Negative comp input (From Reference) Positive comp input Positive comp input selector Clock input (MHz Max) Comp output Bias current (20uA ±10% Sourcing) supply +6.5V supply needed) Ground supply Power Down Input
DETLV02
AMERICAN MICROSYSTEMS,
June, 1998 Preliminary
micron CMOS CWLDouble Poly Power Down Input
Digital Input
ELECTRICAL CHARACTERISTICS
SYMBOL ICMR TPHL TPLH IBIAS TRRES TFRES PARAMETER Supply Voltage Temperature current Standby current Comparator offset Input Common Mode Range Prop delay high->low Prop delay low->high Input bias current R-string rise time string fall time 78.0 Vdd-1.5 107.6 81.0 50.0 7.52 7.52 UNITS
38.4 26.3 20.0 3.58 3.58
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