监控电路

Analog Devices 的电源电压监视器和微处理器监控器可监察正和负电源,其在纤巧型封装中集成了多达 8 个电源监视器。如果任何电源变至高于或低于用户定义的门限,这些器件将产生一个复位信号。复位时间通常固定在 200 ms,或者可仅利用单个电容器来调节。除了电源监视之外,CPU 和 ASIC 也可由一个集成的看门狗定时器进行监控。

监控电路

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SortOrderPart#Number of SuppliesReset VoltageSecond Reset VoltageThird Reset VoltageIsupply
(typ)
(A)
Price (1000+)
($ US)
Watchdog TimerVs+
(max)
(V)
1LTC2964 4 1.2V, 1.5V, 1.8V, 1V, 2.5V, 3.3V, 5V, Adj, -Adj Adj, -Adj Adj, -Adj 140µ $2.23 (LTC2964CUDC#PBF) Yes 5.5
2LTC2962 4 1.2V, 1.5V, 1.8V, 1V, 2.5V, 3.3V, 5V, Adj, -Adj Adj, -Adj Adj, -Adj 140µ $1.98 (LTC2962CUD#PBF) Yes 5.5
3LTC2963 4 1.2V, 1.5V, 1.8V, 1V, 2.5V, 3.3V, 5V, Adj, -Adj Adj, -Adj Adj, -Adj 140µ $2.23 (LTC2963CUDC-1#PBF) Yes 5.5
4LTC2937 6 Adj Adj Adj 1m $5.95 (LTC2937CUHE#PBF) No 16.5
5LTC2966 2 Adj Adj- $2.44 (LTC2966CSW#PBF) No 100
6LTC2965 1 Adj-- $1.98 (LTC2965CDD#PBF) No 100
7LTC2936 6 Adj Adj Adj 700µ $5.60 (LTC2936CGN#PBF) No 13.9
8ADM8642 1 Adj-- 200µ $0.25 (ADM8642T100ACBZ-R7) No 5.5
9ADM8641 1 Adj-- 92n $0.25 (ADM8641T263ACBZ-R7) No 5.5
10ADM8615 1 Adj-- 20µ $0.59 (ADM8615Y100ACBZ-R7) Yes 5.5
11ADM8614 1 Adj-- 92n $0.59 (ADM8614Y263ACBZ-R7) Yes 3.6
12ADM8613 1 Adj-- 92n $0.59 (ADM8613Y232ACBZ-R7) Yes 5.5
13ADM8612 1 Adj-- 92n $0.42 (ADM8612N110ACBZ-R7) No 5.5
14ADM8611 1 Adj-- 92n $0.39 (ADM8611N263ACBZ-R7) No 5.5
15ADM8324 1 Adj-- 92n $0.79 (ADM8324WAH29ARJZR7) Yes 5.5
16ADM8323 1 Adj-- 10µ $0.79 (ADM8323WCC29ARJZR7) Yes 5.5
17ADM8322 1 Adj-- 10µ $0.69 (ADM8322WB26ARJZRL7) Yes 5.5
18ADM8321 1 Adj-- 10µ $0.69 (ADM8321WAX30ARJZR7) Yes 5.5
19ADM8320 1 Adj-- 10µ $0.69 (ADM8320WBX3NARJZR7) Yes 5.5
20ADM8319 1 Adj-- 10µ $0.69 (ADM8319WB31ARJZR7) Yes 5.5
21ADM8318 1 Adj-- 10µ $0.69 (ADM8318WCY46ARJZR7) Yes 5.5
22ADM8316 1 Adj-- 10µ $0.69 (ADM8316WAY27ARJZR7) Yes 5.5
23ADM8710 4 1.8V, 3.3V, Adj 1.8V, 3.3V Adj 100µ $1.79 (ADM8710L2ARJZ-RL7) No 5.5
24LTC2960 2 Adj Adj- 850n $1.71 (LTC2960CDC-1#TRPBF) No 36
25LTC2933 6 Adj Adj Adj 700µ $4.85 (LTC2933CDHD#PBF) No 13.9
26LTC2911-5 3 3.3V Adj Adj 10µ $1.52 (LTC2911CTS8-5#TRPBF) No 6.5
27LTC2911-4 3 3.3V 1.2V Adj 10µ $1.52 (LTC2911CTS8-4#TRPBF) No 6.5
28LTC2911-3 3 3.3V 1.8V Adj 10µ $1.52 (LTC2911CTS8-3#TRPBF) No 6.5
29LTC2911-2 3 3.3V 2.5V Adj 10µ $1.52 (LTC2911CTS8-2#TRPBF) No 6.5
30LTC2911-1 3 3.3V 5V Adj 10µ $1.52 (LTC2911CTS8-1#TRPBF) No 6.5
31ADM6306 1 Adj 0.4, 1.23- 15µ $1.15 (ADM6306D131ARJZ1R7) No 5.5
32ADM6305 2 Adj Adj- 20µ $1.15 (ADM6305D3ARJZ1-RL7) No 5.5
33ADM6346 1 Adj-- 500n $0.95 (ADM6346-46ARTZ-R7) No 5.5
34ADM6328Reference Circuit Available 4 Adj Adj Adj 115µ $0.95 (ADM6328-22ARTZ-R7) No 5.5
35ADM6326 1 Adj-- 500n $0.95 (ADM6326-22ARTZ-R7) No 5.5
36ADM12914 4 Adj Adj Adj 40µ $2.87 (ADM12914-1ARQZ) No-
37LTC2939 6 3.3V, 5V 1.2V, 1.5V, 1.8V, 2.5V, 3.3V 1.2V, 1.5V, 1.8V, 2.5V, Adj 80µ $2.70 (LTC2939CMS#PBF) Yes 6
38LTC2938 4 3.3V, 5V 1.2V, 1.5V, 1.8V, 2.5V, 3.3V 1.2V, 1.5V, 1.8V, 2.5V, Adj 80µ $2.15 (LTC2938CDE#PBF) Yes 6
39ADM6339 4 1.8V, 2.5V, 3.3V, 3V, 5V, -5V Adj, -Adj Adj, -Adj 500n $1.79 (ADM6339AARJZ-RL7) No 5.5
40ADM2914 4 Adj, -Adj Adj, -Adj - 20µ $2.56 (ADM2914-1ARQZ) No-
41AD5100 4 Adj Adj Adj 2m $3.05 (AD5100YRQZ-1RL7) Yes 30
42LTC2935 1 2.25V, 2.4V, 2.55V, 2.7V, 2.85V, 3.15V, 3.3V, 3V-- 500n $1.22 (LTC2935CDC-1#TRPBF) No 6
43LTC2934 1 Adj-- 500n $1.15 (LTC2934CDC-1#TRPBF) No 6
44ADM1184 4 Adj Adj Adj 80µ $1.84 (ADM1184ARMZ) No 5.5
45LTC2918 1 Adj-- 30µ $1.30 (LTC2918CDDB-A1#TRPBF) Yes 6.2
46LTC2917 1 Adj-- 30µ $1.30 (LTC2917CDDB-A1#TRPBF) Yes 6.2
47ADM13307 1 1.8V, 2.5V, 3.3V, 5V 1.8V, 3.3V, 5V 1.8V, 3.3V, 5V 16µ $1.02 (ADM13307-18ARZ) No 5.5
48ADM13305 3 Adj Adj- 40µ $0.99 (ADM13305-18ARZ) Yes 5.5
49LTC2953-2 1 Adj, -Adj-- 14µ $2.30 (LTC2953CDD-2#PBF) No 27
50LTC2953-1 1 Adj, -Adj-- 14µ $2.30 (LTC2953CDD-1#PBF) No 27