AD7945BR Analog Devices Inc, AD7945BR Datasheet
AD7945BR
Specifications of AD7945BR
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AD7945BR Summary of contents
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FEATURES 12-Bit Multiplying DACs Guaranteed Specifications with +3.3 V/+5 V Supply 0.5 LSBs INL and DNL Low Power typ Fast Interface 40 ns Strobe Pulsewidth (AD7943 Write Pulsewidth (AD7945, AD7948) Low Glitch: 60 nV-s with ...
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AD7943/AD7945/AD7948–SPECIFICATIONS NORMAL MODE (AD7943 +4 +5 AD7945, AD7948 +4 +5 Parameter ACCURACY Resolution Relative Accuracy Differential Nonlinearity Gain Error MIN MAX 4 Gain ...
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SPECIFICATIONS BIASED MODE (AD7943 +5 wise noted. AD7945, AD7948 +5 Parameter ACCURACY Resolution Relative Accuracy Differential Nonlinearity Gain Error @ + ...
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AD7943/AD7945/AD7948 AC PERFORMANCE CHARACTERISTICS NORMAL MODE (AD7943 +4 +5 rms, 1 kHz sine wave; T REF A cluded for Design Guidance and are not subject to test. ...
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AD7943 TIMING SPECIFICATIONS Limit @ Parameter +3 STB SRI CLR t 0 ASB ...
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AD7943/AD7945/AD7948 AD7945 TIMING SPECIFICATIONS Limit @ Parameter +3 NOTES 1 All input signals are specified with tr = ...
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... Although the AD7943/AD7945/AD7948 feature proprietary ESD protection circuitry, perma- nent 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. Model AD7943BN AD7943BR AD7943BRS AD7943AN-B AD7943ARS-B AD7945BN AD7945BR AD7945BRS AD7945AN-B AD7945ARS-B AD7945TQ AD7948BN AD7948BR AD7948BRS AD7948AN-B AD7948ARS-B NOTE Plastic DIP ...
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AD7943/AD7945/AD7948 TERMINOLOGY Relative Accuracy Relative Accuracy or endpoint linearity is a measure of the maximum deviation from a straight line passing through the endpoints of the DAC transfer function measured after adjusting for zero error and full-scale error ...
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Pin Mnemonic Description I DAC current output terminal 1. OUT1 I DAC current output terminal 2. This should be connected to the AGND pin. OUT2 AGND This pin connects to the back gates of the current steering switches. In normal ...
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AD7943/AD7945/AD7948 Pin Mnemonic Description I DAC current output terminal 1. Normally terminated at the virtual ground of output amplifier. OUT1 AGND Analog Ground Pin. This pin connects to the back gates of the current steering switches. The DAC I terminal ...
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Typical Performance Curves 0.5 0.4 0.3 0.2 0 – Volts REF Figure 5. Differential Nonlinearity Error vs. V (Normal Mode) REF 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0 ...
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AD7943/AD7945/AD7948 1. +3. REF V = 1.23V BIAS OP AMP = AD820 0. + 0.00 –0.50 –1.00 0 1024 2048 INPUT CODE Figure 9. All Codes Linearity in Biased Mode ...
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GENERAL DESCRIPTION D/A Section The AD7943, AD7945 and AD7948 are 12-bit current-output D/A converters. A simplified circuit diagram is shown in Fig- ure 13. The DAC architecture is segmented. This means that the 2 MSBs of the 12-bit data word ...
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AD7943/AD7945/AD7948 BIPOLAR OPERATION (Four-Quadrant Multiplication) Figure 15 shows the standard connection diagram for bipolar operation of the AD7943, AD7945 and AD7948. The coding is offset binary as shown in Table IV. When V the circuit performs four-quadrant multiplication. Resistors R1 ...
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MICROPROCESSOR INTERFACING AD7943 to ADSP-2101 Interface Figure 17 shows the AD7943 to ADSP-2101 interface diagram. The DSP is set up for alternate inverted framing with an inter- nally generated SCLK. TFS from the ADSP-2101 drives the STB1 input on the ...
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AD7943/AD7945/AD7948 16-Lead Plastic DIP (N-16) 0.840 (21.34) 0.745 (18.92 0.280 (7.11) 0.240 (6.10 PIN 1 0.060 (1.52) 0.015 (0.38) 0.210 (5.33) MAX 0.130 (3.30) 0.160 (4.06) MIN 0.115 (2.93) 0.100 0.070 (1.77) SEATING 0.022 (0.558) (2.54) ...