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Product Detailed Parameters
- Description:IC DAC 12BIT V-OUT 24CDIP
- Series:-
- Mfr:Analog Devices Inc.
- Package:Tube
- Number of Bits:12
- Number of D/A Converters:2
- Settling Time:5µs
- Output Type:Voltage - Buffered
- Differential Output:No
- Data Interface:Parallel
- Reference Type:External
- Voltage - Supply, Analog:±14.25V ~ 15.75V
- Voltage - Supply, Digital:-
- INL/DNL (LSB):±1 (Max), ±1 (Max)
- Architecture:R-2R
- Operating Temperature:-55°C ~ 125°C
- Package / Case:24-CDIP (0.300", 7.62mm)
- Supplier Device Package:24-CDIP
- Mounting Type:Through Hole
- Grade:-
- Qualification:-
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Overview
The AD7837SQ is a dual 12-bit multiplying digital-to-analog converter (MDAC) from Analog Devices, featuring integrated output amplifiers. It utilizes LC2MOS technology and an R-2R segmented architecture to achieve high performance. The device operates within an extended temperature range of -55°C to +125°C and offers ±1 LSB relative accuracy. Key electrical specifications include a typical voltage output settling time of 3 µs, a slew rate of 11 V/µs, and unity gain small-signal bandwidth of 750 kHz. It requires dual power supplies ranging from ±14.25 V to ±15.75 V.
Feature Summary
- Dual 12-bit MDACs with integrated buffered output amplifiers
- Extended industrial temperature range: -55°C to +125°C
- ±1 LSB maximum relative accuracy and differential nonlinearity
- 3 µs typical settling time to within ±1/2 LSB
- Parallel input loading structure for microprocessor interfacing
Applications
- Automatic Test Equipment
- Function Generation and Waveform Reconstruction
- Programmable Power Supplies
- Synchro Applications
- Programmable Gain Amplifiers
Procurement Notes
Verify the specific ordering suffix SQ corresponds to the Cerdip (Q-24) package and the extended temperature grade (-55°C to +125°C). Confirm that the required accuracy level matches the S version specification of ±1 LSB relative accuracy. Ensure compatibility with the parallel interface logic and power supply requirements before procurement.
Selection Notes
Select the AD7837SQ when an extended operating temperature range up to +125°C is required. This model provides ±1 LSB accuracy in a 24-lead Cerdip package. Compare against the AD7847 series if serial or independent chip select interfaces are preferred over the AD7837's parallel word input loading structure. Verify that the ±15 V supply rails align with system design constraints.
Part Context
The AD7837SQ belongs to the AD7837/AD7847 family of complete dual 12-bit multiplying DACs. The 'S' suffix denotes the extended temperature variant (-55°C to +125°C), while 'Q' indicates the 24-lead Cerdip package option. This component is part of Analog Devices' LC2MOS product line, designed for applications requiring precise analog signal generation and control.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation.
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