Watchdog Timers
Analog Devices offers a range of supervisory circuits with watchdog timers. The on-chip watchdog timer can reset the microprocessor if it fails to strobe within a preset timeout period, with multiple reset threshold options available throughout the portfolio. By consuming as little as 3 µA, our supervisory circuits are suitable for use in low power applications, as well as:
• Automotive infotainment
• Microprocessor systems
• Intelligent instruments
• Supervising DSPs/microcontrollers
• Industrial and portable equipment
• Wireless systems
• Notebook/desktop computers
• Automotive infotainment
• Microprocessor systems
• Intelligent instruments
• Supervising DSPs/microcontrollers
• Industrial and portable equipment
• Wireless systems
• Notebook/desktop computers
Таблица выбора продукта
Актуальные ресурсы по теме
Watchdog Timers
| SortOrder | Part# | # of Sense Inputs | Vreset Threshold | Reset Timeout (min) | Watchdog Timeout (typ) | Output Logic | Power Device Features | Vs+ (min) (V) | Vs+ (max) (V) | Is (typ) (A) | Price (1000+) ($ US) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | ADM8615 | 1 | 0.5 to 1.9 V (20 Options) | 170 | 1600, 25600 | Active-Low, Open-Drain | Manual Reset, Simple Reset, WDT | 2 | 5.5 | 92n | $0.59 (ADM8615Y100ACBZ-R7) |
| 2 | ADM8614 | 1 | 2.32 to 4.63 (5 Options) | 170 | 100000, 1600 | Active-Low, Open-Drain | Manual Reset, Simple Reset, WDT | 2.375 | 3.6 | 92n | $0.59 (ADM8614Y263ACBZ-R7) |
| 3 | ADM8613 | 1 | 2.32 to 4.63 (5 Options) | 170 | 1600, 25600 | Active-Low, Open-Drain | Manual Reset, Simple Reset, WDT | 2 | 5.5 | 92n | $0.59 (ADM8613Y232ACBZ-R7) |
| 4 | ADM8324 | - | - | 1, 1120, 140, 20 | 1.5 to 1240 | - | Manual Reset, Simple Reset, WDT, Windowed Watchdog | 0.9 | 5.5 | 10µ | $0.79 (ADM8324WAH29ARJZR7) |
| 5 | ADM8323 | - | - | 1, 1120, 140, 20 | 1.5 to 1240 | - | Manual Reset, Simple Reset, WDT, Windowed Watchdog | 0.9 | 5.5 | 10µ | $0.79 (ADM8323WCC29ARJZR7) |
| 6 | ADM8322 | 1 | - | 1, 1120, 140, 20 | 102, 1600, 25600, 6.3 | Active-Low | Manual Reset, Simple Reset, WDT | 0.9 | 5.5 | 10µ | $0.69 (ADM8322WB26ARJZRL7) |
| 7 | ADM8321 | 1 | - | 1, 1120, 140, 20 | 102, 1600, 25600, 6.3 | Active-Low | Manual Reset, Simple Reset, WDT | 0.9 | 5.5 | 10µ | $0.69 (ADM8321WAX30ARJZR7) |
| 8 | ADM8320 | 1 | - | 1, 1120, 140, 20 | - | Active-Low | Manual Reset, Simple Reset, WDT | 0.9 | 5.5 | 10µ | $0.69 (ADM8320WBX3NARJZR7) |
| 9 | ADM8319 | 1 | - | 1, 1120, 140, 20 | 102, 1600, 25600, 6.3 | Active-Low | Manual Reset, Simple Reset, WDT | 0.9 | 5.5 | 10µ | $0.69 (ADM8319WB31ARJZR7) |
| 10 | ADM8318 | 1 | - | 1, 1120, 140, 20 | 102, 1600, 25600, 6.3 | Active-Low | Manual Reset, Simple Reset, WDT | 0.9 | 5.5 | 10µ | $0.69 (ADM8318WCY46ARJZR7) |
| 11 | ADM8316 | 1 | - | 1, 1120, 140, 20 | 102, 1600, 25600, 6.3 | Active-Low | Manual Reset, WDT | 0.9 | 5.5 | 10µ | $0.69 (ADM8316WAY27ARJZR7) |
| 12 | AD5100 | 4 | Programmable | Adjustable | - | Active-Low, Push-Pull | Manual Reset, Multi-Voltage, Pwr Fail Indicator, WDT | 6 | 30 | 2m | $3.05 (AD5100YRQZ-1RL7) |
| 13 | ADM13305 | 2 | (Adjustable), 0.6 to 4.55 V (5 Options) | 140 | 1600 | Active-High, Active-Low, Push-Pull | Manual Reset, Multi-Voltage, WDT | 2.7 | 5.5 | 40µ | $0.99 (ADM13305-18ARZ) |
| 14 | ADM8617 | 1 | 1.58 to 4.63 V (9 Options) | 1, 1120, 140, 20 | 102, 1600, 6.3 | Active-Low, Open-Drain | WDT | 1 | 5.5 | 20µ | $1.05 (ADM8617RCYAKSZ-RL7) |
| 15 | ADM8616 | 1 | 1.58 to 4.63 V (9 Options) | 1, 1120, 140, 20 | 102, 1600, 6.3 | Active-Low, Push-Pull | WDT | 1 | 5.5 | 20µ | $1.05 (ADM8616LCYAKSZ-RL7) |
| 16 | ADM6823 | 1 | 1.58 to 4.63 V (9 Options) | 140 | 1600 | Active-Low, Push-Pull | Manual Reset, WDT | 1 | 5.5 | 10µ | $0.89 (ADM6823RYRJZ-RL7) |
| 17 | ADM824 | 1 | 2.19 to 4.63 V (7 Options) | 140 | 1600 | Active-High, Active-Low, Push-Pull | WDT | 1 | 5.5 | 24µ | $0.53 (ADM824LYRJZ-REEL7) |
| 18 | ADM823 | 1 | 2.19 to 4.63 V (7 Options) | 140 | 1600 | Active-Low, Push-Pull | Manual Reset, WDT | 1 | 5.5 | 24µ | $0.53 (ADM823LYKSZ-R7) |
| 19 | ADM6321 | 1 | 2.5 to 5.0 V (26 Options) | 1, 1200, 140, 20 | 102, 1600, 25600, 6.3 | Active-High, Active-Low, Open-Drain, Push-Pull | WDT | 1 | 5.5 | 20µ | $0.62 (ADM6321AY30ARJZ-R7) |
| 20 | ADM6320 | 1 | 2.5 to 5.0 V (26 Options) | 1, 1120, 140, 20 | 102, 1600, 25600, 6.3 | Active-Low, Open-Drain | Manual Reset, WDT | 1 | 5.5 | 20µ | $0.53 (ADM6320BX33ARJZ-R7) |
| 21 | ADM6318 | 1 | 2.5 to 5.0 V (26 Options) | 1, 1120, 140, 20 | 102, 1600, 25600, 6.3 | Active-High, Active-Low, Push-Pull | WDT | 1 | 5.5 | 20µ | $0.52 (ADM6318BX49ARJZ-R7) |
| 22 | ADM6316 | 1 | 2.5 to 5.0 V (26 Options) | 1, 1120, 140, 20 | 102, 1600, 25600, 6.3 | Active-Low, Push-Pull | Manual Reset, WDT | 1 | 5.5 | 20µ | $0.53 (ADM6316AY27ARJZ-R7) |
| 23 | ADM9690 | 1 | 4.31 V | 10, 50 | 0.75, 1.5, 12.5, 25 | Active-Low, Push-Pull | WDT | 4.3 | 5.5 | 100µ | $1.67 (ADM9690ARNZ) |
| 24 | ADM1232 | 1 | 4.37 V, 4.62 V | 250 | 1120, 150, 600 | Active-High, Active-Low, Open-Drain, Push-Pull | Manual Reset, WDT | 4.5 | 5.5 | 50µ | $1.05 (ADM1232ANZ) |
| 25 | ADM8699 | 1 | 4.65 V | 140 | 1600 | Active-High, Active-Low, Push-Pull | WDT | 3 | 5.5 | 100µ | $2.35 (ADM8699ARNZ) |
| 26 | ADM8697 | - | - | - | - | - | WDT | 3 | 5.5 | - | $3.18 (ADM8697ARWZ) |
| 27 | ADM8696 | - | 1.3 V | 35, Adjustable | - | Active-High, Active-Low, Push-Pull | Battery Backup, Pwr Fail Indicator, WDT | 3 | 5.5 | 200µ | $3.18 (ADM8696ARWZ) |
| 28 | ADM8695 | - | 4.65 V | 140, Adjustable | 100, 1600, ADJ | Active-High, Active-Low, Push-Pull | Battery Backup, Pwr Fail Indicator, WDT | 4.75 | 5.5 | 200µ | $2.56 (ADM8695ARWZ) |
| 29 | ADM8694 | - | 4.65 V | 140 | - | Active-Low, Push-Pull | Battery Backup, Pwr Fail Indicator, WDT | 4.75 | 5.5 | 200µ | - |
| 30 | ADM8693 | - | 4.4 V | 35, Adjustable | 100, 1600, ADJ | Active-High, Active-Low, Push-Pull | Battery Backup, Pwr Fail Indicator, WDT | 4.5 | 5.5 | 200µ | - |
| 31 | ADM8691 | - | 4.65 V | 35, Adjustable | 100, 1600, ADJ | Active-High, Active-Low, Push-Pull | Battery Backup, Pwr Fail Indicator, WDT | 4.75 | 5.5 | 200µ | $3.53 (ADM8691ARWZ) |
| 32 | ADM8690 | - | 4.65 V | 35 | 1600 | Active-Low, Push-Pull | Battery Backup, Pwr Fail Indicator, WDT | 4.75 | 5.5 | 200µ | $2.95 (ADM8690ARNZ) |
| 33 | ADM805 | - | 4.4 V, 4.65 V | 140 | 1600 | Active-High, Push-Pull | Battery Backup, Pwr Fail Indicator, WDT | 4.5 | 5.5 | 100µ | $2.45 (ADM805LANZ) |
| 34 | ADM802 | - | 4.4 V, 4.65 V | 140 | 1600 | Active-Low, Push-Pull | Battery Backup, Pwr Fail Indicator, WDT | 4.5 | 5.5 | 100µ | $2.23 (ADM802LARNZ) |
| 35 | ADM800 | - | 4.4 V, 4.65 V | 140, Adjustable | - | Active-High, Active-Low, Open-Drain, Push-Pull | Battery Backup, Pwr Fail Indicator, WDT | 4.5 | 5.5 | 100µ | $2.33 (ADM800MARNZ) |
| 36 | ADM693A | - | 4.4 V | 140, Adjustable | - | Active-High, Active-Low, Open-Drain, Push-Pull | Battery Backup, Pwr Fail Indicator, WDT | 4.5 | 5.5 | 100µ | $1.85 (ADM693AANZ) |
| 37 | ADM692A | - | 4.4 V | 140 | 1600 | Active-Low, Push-Pull | Battery Backup, Pwr Fail Indicator, WDT | 4.5 | 5.5 | 100µ | $1.68 (ADM692AANZ) |
| 38 | ADM691A | - | 4.65 V | 140, Adjustable | - | Active-High, Active-Low, Open-Drain, Push-Pull | Battery Backup, Pwr Fail Indicator, WDT | 4.75 | 5.5 | 100µ | $1.73 (ADM691AARUZ) |
| 39 | ADM690A | - | 4.65 V | 140 | 1600 | Active-Low, Push-Pull | Battery Backup, Pwr Fail Indicator, WDT | 4.75 | 5.5 | 100µ | $1.73 (ADM690AARMZ) |
| 40 | ADM706 | 1 | 4.4 V | 160 | 1600 | Active-Low, Push-Pull | Manual Reset, Pwr Fail Indicator, WDT | 4.75 | 5.5 | 250µ | $1.70 (ADM706ANZ) |
| 41 | ADM705 | 1 | 4.65 V | 160 | 1600 | Active-Low, Push-Pull | Manual Reset, Pwr Fail Indicator, WDT | 4.75 | 5.5 | 250µ | $1.02 (ADM705ANZ) |
| 42 | ADM699 | 1 | 4.65 V | 140 | 1600 | Active-High, Active-Low, Push-Pull | WDT | 3 | 5.5 | 1.95m | $1.93 (ADM699ANZ) |
| 43 | ADM697 | - | Adjustable | 35 | - | Active-High, Active-Low, Push-Pull | Battery Backup, Battery Switch-over, Pwr Fail Indicator, WDT | 3 | 5.5 | 1.95m | $3.02 (ADM697ANZ) |
| 44 | ADM696 | - | Adjustable | 35 | - | Active-High, Active-Low, Push-Pull | Battery Backup, Battery Switch-over, Pwr Fail Indicator, WDT | 3 | 5.5 | 1.95m | $3.31 (ADM696ARZ) |
| 45 | ADM695 | - | Adjustable | 140, Adjustable | - | Active-High, Active-Low, Push-Pull | Battery Backup, Pwr Fail Indicator, WDT | 4.75 | 5.5 | 1.95m | $3.14 (ADM695ANZ) |
| 46 | ADM694 | - | 4.65 V | 140 | - | Active-Low, Push-Pull | Battery Backup, Pwr Fail Indicator, WDT | 4.75 | 5.5 | 1.95m | $2.91 (ADM694ANZ) |
| 47 | ADM693 | - | 4.4 V | 35, Adjustable | - | Active-High, Active-Low, Push-Pull | Battery Backup, Pwr Fail Indicator, WDT | 4.5 | 5.5 | 1.95m | $3.14 (ADM693ANZ) |
| 48 | ADM692 | - | 4.4 V | 35 | - | Active-Low, Push-Pull | Battery Backup, Pwr Fail Indicator, WDT | 4.5 | 5.5 | 1.95m | $2.78 (ADM692ANZ) |
| 49 | ADM691 | - | 4.65 V | 35, Adjustable | - | Active-High, Active-Low, Push-Pull | Battery Backup, Pwr Fail Indicator, WDT | 4.75 | 5.5 | 1.95m | $3.14 (ADM691ANZ) |
| 50 | ADM690 | - | 4.65 V | 35 | - | Active-Low, Push-Pull | Battery Backup, Pwr Fail Indicator, WDT | 4.75 | 5.5 | 1.95m | $3.06 (ADM690ANZ) |
| 51 | ADM6317 | 1 | 2.5 to 5.0 V (26 Options) | 1, 1120, 140, 20 | 102, 1600, 25600, 6.3 | Active-Low, Push-Pull | Manual Reset, WDT | 1 | 5.5 | 20µ | - |
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