High Quality Small-scale Servo Circuit- LH309 for Accelerometer

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High Quality Small-scale Servo Circuit- LH309 for accelerometer

LH309C High temperature quartz flexible accelerometer servo circuits

1.Sum up

LH309C High temperature quartz flexible accelerometer servo circuits contain modem, power amplifier, voltage stabilizer and barrier container. And the chip of modem and power amplifier are self-developed. It can stably work under -55~175 Centigrade high temperature for long time.

2. Work condition:

Parameter item	Symbol	Minimum	Maximum	Unit
Power voltage	VS	±10	±15	V
Storage temperature range	Tstg	-55~175		?
Work temperature range	TA	-55~175		?

3.Parameters

Item	Symbol	Condition unless otherwise specified (-55?=TA=175?)	Limit value		Unit
			Min	Max
Voltage stabilizer output voltage	Vo+	TA=25±10?	8	10	V
	Vo-		-10	-8
quiescent currency	Is+		-	+15	mA
	Is-		-15	-
Output noise voltage	VN	R=1KO	-	20	mV
Output voltage(±1g)	Vog+	R=1KO	+1	+1.6	V
	Vog-		-1.6	-1
Inherent frequency	fG	R=1KO TA =25±10?; fi=20~3000Hz	200	800	Hz
		R=1KO TA =- 175±3? fi=20~3000Hz	200	1000
Vibration degree	OSCR	R=1KO TA =25±10?; fi=20~3000Hz	-	1.6
		R=1KO TA =- 175±3? fi=20~3000Hz	-	2.0
Band width	BW	R=1KO TA =25±10?; fi=20~3000Hz	800	2000	Hz
		R=1KO TA =- 175±3? fi=20~3000Hz	500	3000