AD7537 Analog Devices, AD7537 Datasheet
AD7537
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AD7537 Summary of contents
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... Many applications which are not practical using two discrete DACs are now possible. Typical matching: 0.5%. 2. Small Package Size: The AD7537 is packaged in small 24-pin 0.3" DIPs and in 28-terminal surface mount packages. 3. Wide Power Supply Tolerance: The device operates tolerance on this nominal figure ...
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... AD7537–SPECIFICATIONS J, A Parameter Versions ACCURACY Resolution 12 Relative Accuracy 1 Differential Nonlinearity 1 Gain Error 6 2 Gain Temperature Coefficient ; Gain/ Temperature 5 Output Leakage Current I OUTA + 150 MIN MAX I OUTB + 150 MIN MAX REFERENCE INPUT Input Resistance 9 20 ...
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... ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the AD7537 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality ...
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... Figure 2. Simplified Circuit Diagram for DAC A EQUIVALENT CIRCUIT ANALYSIS Figure 3 shows the equivalent circuit for one of the D/A con- verters (DAC A) in the AD7537. A similar equivalent circuit can be drawn for DAC the output capacitance due to the N-channel switches OUT and varies from about 150 pF with digital input code ...
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... Tem- perature Coefficient. In many applications, because of the excellent Gain T.C. and Gain Error specifications of the AD7537, Gain Error trimming is not necessary. In fixed refer- ence applications, full scale can also be adjusted by omitting R1, R2, R3, R4 and trimming the reference voltage magnitude. ...
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... AD7537 SEPARATE AGND PINS The DACs in the AD7537 have separate AGND lines taken to pins AGNDA and AGNDB on the package. This increases the applications versatility of the part. Figure example of this. DAC A is connected in standard fashion as a program- mable attenuator. AGNDA is at ground potential. DAC B is op- erating with AGND B biased the AD584 ...
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... AD711/AD712 settling time to 0.01% is typically 3 s. Temperature Coefficients: The gain temperature coefficient of the AD7537 has a maximum value of 5 ppm/ C and typical value of 1 ppm/ C. This corresponds to worst case gain shifts of 2 LSBs and 0.4 LSBs respectively over a 100 C temperature range ...
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... AD7537 24-Pin Plastic DIP (N-24) 28-Terminal Leadless Ceramic Chip Carrier (E-28A) OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 24-Pin Cerdip (Q-24) 28-Terminal Plastic Leaded Chip Carrier –8– 24-Pin Ceramic DIP (D-24A) (P-28A) REV. 0 ...