ADM691ANZ Analog Devices Inc, ADM691ANZ Datasheet
ADM691ANZ
Manufacturer Part Number
ADM691ANZ
Description
IC MPU SUPER 4.65 100MA 16DIP
Manufacturer
Analog Devices Inc
Type
Battery Backup Circuitr
Specifications of ADM691ANZ
Number Of Voltages Monitored
1
Output
Open Drain, Push-Pull
Reset
Active High/Active Low
Reset Timeout
35 ms Minimum
Voltage - Threshold
4.65V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Through Hole
Package / Case
16-DIP (0.300", 7.62mm)
Threshold Voltage
4.65V
No. Of Supervisors / Monitors
1
Supply Voltage Range
0V To 5.5V
Reset Type
Active-High / Active-Low
Supply Current
1.95mA
Delay Time
200ms
Current, Output
20 mA
Current, Supply
1 mA
Frequency, Oscillator
250 kHz
Package Type
DIP-16
Regulator Type
Switching
Temperature, Operating, Range
-40 to +85 °C
Voltage, Output
4.975 V
Voltage, Output, High
3.5 V
Voltage, Output, Low
0.8 V
Voltage, Supply
5 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ADM691ANZ
Manufacturer:
Analog Devices Inc
Quantity:
135
Part Number:
ADM691ANZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
a
GENERAL DESCRIPTION
The ADM690–ADM695 family of supervisory circuits offers
complete single chip solutions for power supply monitoring and
battery control functions in microprocessor systems. These
functions include P reset, backup battery switchover, watchdog
timer, CMOS RAM write protection, and power failure warn-
ing. The complete family provides a variety of configurations to
satisfy most microprocessor system requirements.
The ADM690, ADM692 and ADM694 are available in 8-pin
DIP packages and provide:
1. Power-on reset output during power-up, power-down and
2. Battery backup switching for CMOS RAM, CMOS
3. A reset pulse if the optional watchdog timer has not been
4. A 1.3 V threshold detector for power fail warning, low battery
The ADM691, ADM693 and ADM695 are available in 16-pin
DIP and small outline packages and provide three additional
functions.
1. Write protection of CMOS RAM or EEPROM.
2. Adjustable reset and watchdog timeout periods.
3. Separate watchdog timeout, backup battery switchover, and
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
brownout conditions. The RESET output remains opera-
tional with V
microprocessor or other low power logic.
toggled within a specified time.
detection, or to monitor a power supply other than +5 V.
low V
FEATURES
Superior Upgrade for MAX690–MAX695
Specified Over Temperature
Low Power Consumption (5 mW)
Precision Voltage Monitor
Reset Assertion Down to 1 V V
Low Switch On-Resistance 1.5
High Current Drive (100 mA)
Watchdog Timer—100 ms, 1.6 s, or Adjustable
600 nA Standby Current
Automatic Battery Backup Power Switching
Extremely Fast Gating of Chip Enable Signals (5 ns)
Voltage Monitor for Power Fail
APPLICATIONS
Microprocessor Systems
Computers
Controllers
Intelligent Instruments
Automotive Systems
20
CC
in Backup
status outputs.
CC
as low as 1 V.
CC
Normal,
The ADM690–ADM695 family is fabricated using an advanced
epitaxial CMOS process combining low power consumption
(5 mW), extremely fast Chip Enable gating (5 ns) and high reli-
ability. RESET assertion is guaranteed with V
In addition, the power switching circuitry is designed for mini-
mal voltage drop thereby permitting increased output current
drive of up to 100 mA without the need for an external pass
transistor.
POWER FAIL
POWER FAIL
WATCHDOG
WATCHDOG
INPUT (WDI)
INPUT (WDI)
INPUT (PFI)
INPUT (PFI)
OSC SEL
OSC IN
V
V
CE
BATT
BATT
V
V
CC
CC
IN
FUNCTIONAL BLOCK DIAGRAMS
1
2
1
4.65V
4.65V
VOLTAGE DETECTOR = 4.65V (ADM690, ADM694)
RESET PULSE WIDTH = 50ms (ADM690, ADM692)
VOLTAGE DETECTOR = 4.65V (ADM691, ADM695)
1.3V
1.3V
TRANSITION DETECTOR
WATCHDOG
TIMEBASE
TRANSITION DETECTOR
RESET &
1
1
WATCHDOG
WATCHDOG
Supervisory Circuits
(1.6s)
ADM690–ADM695
BATT ON
GENERATOR
GENERATOR
RESET
200ms (ADM694)
Microprocessor
4.40V (ADM692)
4.40V (ADM693)
RESET
WATCHDOG
© Analog Devices, Inc., 1996
ADM690
ADM692
ADM694
TIMER
2
ADM691
ADM693
ADM695
CC
as low as 1 V.
V
RESET
POWER FAIL
OUTPUT (PFO)
V
CE
RESET
RESET
WATCHDOG
OUTPUT (WDO)
POWER FAIL
OUTPUT (PFO)
LOW LINE
OUT
OUT
OUT
Related parts for ADM691ANZ
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
±1.7g Dual-Axis IMEMS Accelerometer Evaluation Board
Manufacturer:
Analog Devices Inc
Datasheet:
Part Number:
Description:
Inertial Sensor Evaluation System
Manufacturer:
Analog Devices Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Analog Devices Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Analog Devices Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Analog Devices Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Analog Devices Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Analog Devices Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Analog Devices Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Analog Devices Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Analog Devices Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Analog Devices Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Analog Devices Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Analog Devices Inc
Datasheet:
ADM691ANZ Summary of contents
Page 1
FEATURES Superior Upgrade for MAX690–MAX695 Specified Over Temperature Low Power Consumption (5 mW) Precision Voltage Monitor Reset Assertion Down Low Switch On-Resistance 1 Backup High Current Drive (100 mA) Watchdog Timer—100 ms, 1.6 ...
Page 2
ADM690–ADM695–SPECIFICATIONS Parameter BATTERY BACKUP SWITCHING V Operating Voltage Range CC ADM690, ADM691, ADM694, ADM695 ADM692, ADM693 V Operating Voltage Range BATT ADM690, ADM691, ADM694, ADM695 ADM692, ADM693 V Output Voltage OUT V in Battery Backup Mode OUT Supply Current (Excludes ...
Page 3
Parameter OSCILLATOR OSC IN Input Current OSC SEL Input Pull-Up Current OSC IN Frequency Range OSC IN Frequency with External Capacitor NOTE 1 WDI is a three level input which is internally biased to 38 Specifications subject to ...
Page 4
ADM690–ADM695 Mnemonic Function V Power Supply Input Nominal Backup Battery Input. Connect to Ground if a backup battery is not used. BATT V Output Voltage OUT CC can supply up to 100 mA ...
Page 5
ADM690–ADM695 0.210 (5.33) 0.200 (5.05) 0.125 (3.18) OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 8-Pin Plastic DIP (N- 0.280 (7.11) PIN 1 0.240 (6.10 0.325 (8.25) 0.430 (10.92) 0.300 (7.62) 0.348 (8.84) 0.060 (1.52) 0.210 ...