ADC0804 鏅傞枔锛�2023/7/28 11:55:54 闁辫畝锛�1558

鎻忚堪

ADC0804鏄緸妯℃摤鍒版暩(sh霉)瀛�8浣嶇殑杞�(zhu菐n)鎻涘櫒銆傝┎杞�(zhu菐n)鎻涘櫒鍍呭叿鏈変竴鍊嬫ā鎿几鍏ラ€氶亾锛屽叾鏁�(sh霉)瀛楄几鍑虹偤8浣�锛屾渶澶氬彲瀛樺劜256鍊嬩笉鍚屾脯閲忓€�銆傞€氶亷鍦ㄥ紩鑵�9涓ō(sh猫)缃弮鑰冮浕澹撲締瑾�(di脿o)鏁存闀�锛屽彲浠ヨ(di脿o)鏁村弮鑰冭几鍏ラ浕澹撲互鍏佽ū灏嶆暣鍊�8浣嶅垎杈ㄧ巼妯℃摤闆诲鐨勪换浣曡純灏忚寖鍦嶉€茶绶ㄧ⒓銆傜暥(d膩ng)鍩烘簴闆诲寮曡叧鏈€ｆ帴鍒癆DC0804鏅�锛屽熀婧栭浕澹撻粯瑾嶇偤宸ヤ綔闆诲锛屽嵆Vcc銆傛闀风偤19.53mV 5V(5V / 255)锛屽嵆锛屾ā鎿几鍏ユ瘡澧炲姞19.53mV锛岃几鍑哄皣璁婂寲1鍊嬪柈浣�銆傜偤浜嗗缓绔嬩竴鍊嬬⒑瀹氱殑闆诲姘村钩浣滅偤鍙冭€冨€�锛岃┎寮曡叧閫ｆ帴鍒颁竴鍗婇浕澹撱€備緥濡�锛岃寤虹珛涓€鍊嬪弮鑰�2V(Vref)閫ｆ帴鍒�1V寮曡叧9(Vref / 2)锛�

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鐢�(ch菐n)鍝佸湒鐗�

ADC0804

瑕�(gu墨)鏍煎弮鏁�(sh霉)

鍒堕€犲晢	Texas Instruments
鐢�(ch菐n)鍝佸瀷铏�	ADC0804
椤炲垾	A / D杞�(zhu菐n)鎻涘櫒
鍒嗚鲸鐜�	8 浣�(0~255)
瀛樺彇鏅傞枔	135 ms
杞�(zhu菐n)鎻涙檪闁�	100 ms
绺借宸�	-1~+1LSB
宸ヤ綔婧害	ADC0804C鐐�0搴70搴�;ADC0804L鐐�-40 搴85 搴�
妯℃摤杓稿叆闆诲鑼冨湇	0V~5V
鍙冭€冮浕澹�	2.5V
宸ヤ綔闆诲	5V
鍖呰椤炲瀷	20閲滵IP

鐗归粸

宸垎妯℃摤闆诲杓稿叆
閭忚集杓稿叆鍜岃几鍑虹鍚圡OS鍜孴TL闆诲闆诲钩瑕�(gu墨)鑼�
鑸�2.5V(LM336)闆诲鍩烘簴涓€璧蜂娇鐢�
鏄撲簬鑸囨墍鏈夊井铏曠悊鍣ㄦ帴鍙ｆ垨鐛ㄧ珛宸ヤ綔銆�
鍠€氶亾8浣岮DC妯″
鎻愪緵鐗囦笂鏅傞悩锛岀劇闇€澶栭儴鎸暕鍣�(鏅傞悩)
鏁�(sh霉)瀛楄几鍑鸿寖鍦嶅緸0鍒�255
鐣�(d膩ng)Vref = 5V鏅傦紝灏嶄簬姣�19.53mV鐨勬ā鎿€�锛屾暩(sh霉)瀛楃灏囧鍔犱竴浣�(姝ラ暦)
閲囩敤20寮曡叧PDIP锛孲OIC灏佽
鐒￠渶瑾�(di脿o)闆�

鎳�(y墨ng)鐢ㄩ牁(l菒ng)鍩�

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闆昏矾鍦�

寮曡叧鍦�

寮曡叧鍔熻兘瑾槑

寮曡叧铏�	寮曡叧鍚嶇ū	鎻忚堪
1	鐗囬伕(CS)	濡傛灉浣跨敤澶氬€婣DC妯″锛屽墖浣跨敤鐗囬伕銆傞粯瑾嶆帴鍦�
2	璁€(RD)	璁€鍙栧紩鑵冲繀闋堟帴鍦颁互璁€鍙栨ā鎿€�
3	瀵�(WR)	瀵紩鑵虫噳(y墨ng)琚剤娌栫偤楂橀浕骞充互闁嬪鏁�(sh霉)鎿�(j霉)杞�(zhu菐n)鎻�
4	鏅傞悩杓稿叆	鍙互鍦ㄦ铏曢€ｆ帴澶栭儴鏅傞悩锛屽惁鍓囧彲浠ヤ娇鐢≧C瑷晱鍏�(n猫i)閮ㄦ檪閻�
5	涓柗(INTR)	鐐轰腑鏂疯珛姹傝€岃畩楂�銆�
6	Vin(+)	宸垎妯℃摤杓稿叆+銆傞€ｆ帴鍒癆DC杓稿叆
7	Vin(-)	宸垎妯℃摤杓稿叆-銆傛帴鍦�
8	鍦伴潰	妯℃摤鎺ュ湴寮曡叧閫ｆ帴鍒伴浕璺殑鎺ュ湴
9	V鍙冭€�/2	ADC杞�(zhu菐n)鎻涚殑鍙冭€冮浕澹�銆�
10	鍦伴潰	鏁�(sh霉)瀛楁帴鍦板紩鑵抽€ｆ帴鍒伴浕璺殑鎺ュ湴
11鑷�18	鏁�(sh霉)鎿�(j霉)浣�0鍒颁綅7	涓冨€嬭几鍑烘暩(sh霉)鎿�(j霉)浣嶅紩鑵筹紝鍙緸涓嵅寰楄几鍑�
19	鏅傞悩	RC瀹氭檪闆婚樆杓稿叆寮曡叧锛岀敤浜庡収(n猫i)閮ㄦ檪閻樼敓鎴�
20	Vcc	鐐篈DC妯″渚涢浕锛屼娇鐢�+ 5V