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AD790SQ 比较器

The AD790 is a fast (45 ns), precise voltage comparator, with a number of features that make it exceptionally versatile and easy to use. The AD790 may operate from either a single +5 V supply or a dual ±15 V supply. In the single-supply mode, the AD790's inputs maybe referred to ground, a feature not found in other comparators. In the dual-supply mode it has the unique ability of handling a maximum differential voltage of 15 V across its input terminals, easing their interfacing to large amplitude and dynamic signals.

The device is fabricated using Analog Devices' Complementary Bipolar (CB) process - which gives the AD790's combination of fast response time and outstanding input voltage resolution (1mV max). To preserve its speed and accuracy, the AD790 incorporates a "low glitch" output stage that does not exhibit the large current spikes normally found in TTL or CMOS output stages. Its controlled switching reduces power supply disturbances that can feed back to the input and cause undesired oscillations. The AD790 also has a latching function which makes it suitable for applications requiring synchronous operation.

The AD790 is available in five performance grades. The AD790J and the AD790K are rated over the commercial temperature range of 0°C to 70°C. The AD790a and AD790B are rated over the industrial temperature range of -40°C to +85°C. The AD790S is rated over the military temperature range of -55°C to +125°C and is available to MIL-STD-883B, Rev. C.

AD790SQ 特点

45 ns max Propagation Delay
Single 5 V or Dual ±15 V Supply Operation
CMOS or TTL Compatible Output
250 µV max Input Offset Voltage
500 µV max Input Hysteresis Voltage
15 V max Differential Input Voltage
Onboard Latch
60 mW Power Dissipation
Available in 8-Pin Plastic and Hermetic Cerdip Packages
Available in Tape and Reel in Accordance with EIA-481A Standard

AD790SQ 功能框图

Pin Configuration for AD790

芯片引脚定义图

AD790SQ 技术指标

Logic Output	TTL/CMOS	Voltage Supply (V)	+/-15
# Per Pkg	2	Package	8-Lead DIP,8-Lead SOIC
Prop Delay (ns)typ	45ns	Latch Enable Pin	X

AD790 订购指南

产品型号	产品状态	封装	温度范围
AD790AQ	量产	CERDIP GLASS SEAL	工业
AD790JN	量产	8 ld PDIP	商业
AD790JNZ	量产	8 ld PDIP	商业
AD790JR	量产	8 ld PDIP	商业
AD790JR-REEL	量产	8 ld PDIP	商业
AD790JR-REEL7	量产	8 ld PDIP	商业
AD790JRZ	量产	8 ld PDIP	商业
AD790JRZ-REEL	量产	8 ld PDIP	商业
AD790JRZ-REEL7	量产	8 ld PDIP	商业
AD790SQ	量产	CERDIP GLASS SEAL	军用