DAC250Y BURR-BROWN [Burr-Brown Corporation], DAC250Y Datasheet
DAC250Y
Related parts for DAC250Y
DAC250Y Summary of contents
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Dual, 12-Bit, 125MSPS DIGITAL-TO-ANALOG CONVERTER FEATURES 125MSPS UPDATE RATE SINGLE SUPPLY: +3.3V or +5V HIGH SFDR: 70dB 20MHz OUT LOW GLITCH: 2pVs LOW POWER: 310mW INTERNAL REFERENCE POWER-DOWN MODE: 23mW DESCRIPTION The DAC2902 is a monolithic, 12-bit, ...
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ABSOLUTE MAXIMUM RATINGS +V to AGND ........................................................................ –0. DGND ........................................................................ –0.3V to +6V D AGND to DGND ................................................................. –0.3V to –0. ............................................................................... – CLK, PD, WRT to DGND ...
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ELECTRICAL CHARACTERISTICS +5V +3.3V, differential transformer coupled output, 50ý doubly terminated, unless otherwise noted. Independant Gain Mode. MIN MAX A D PARAMETER DYNAMIC PERFORMANCE (Cont.) Signal-to-Noise Ratio (SNR 5.02MHz, f ...
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PIN CONFIGURATION Top View D11_1 (MSB D10_1 D9_1 3 D8_1 4 D7_1 5 D6_1 6 D5_1 7 D4_1 8 D3_1 9 10 D2_1 D1_1 11 D0_1 12 PIN DESCRIPTIONS PIN DESIGNATOR DESCRIPTION 1-12 D[11:0]_1 Data Port DAC1, Data ...
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TIMING DIAGRAM DATA IN WRT1 WRT2 CLK1 CLK2 I 1 OUT I 2 OUT SYMBOL LPW, CPW SET DIGITAL INPUTS AND TIMING The data input ports of the DAC2902 ...
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TYPICAL CHARACTERISTICS T = 25° +3.3V +5V, differential transformer coupled TYPICAL DNL 1.4 1.2 1 0.8 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1 0 500 1k 1k5 2k 2k5 Code ...
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TYPICAL CHARACTERISTICS T = 25° +3.3V +5V, differential transformer coupled SFDR 125MHz OUT 85 80 –6dBFS 75 70 0dBFS ...
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TYPICAL CHARACTERISTICS T = 25° +3.3V +5V, differential transformer coupled OUT ...
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APPLICATION INFORMATION THEORY OF OPERATION The architecture of the DAC2902 uses the current steering technique to enable fast switching and a high update rate. The core element within the monolithic DAC is an array of segmented current sources that are ...
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The value of the load resistance is limited by the output compliance specification of the DAC2902. To maintain specified linearity performance, the voltage for I I should not exceed the maximum allowable compliance OUT range. The two single-ended output voltages ...
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As shown in Figure 3, the transformer’s center tap is con- nected to ground. This forces the voltage swing centered at 0V. In this case the two resistors, R OUT may be replaced with one, ...
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The DC gain for this circuit is equal to feedback resistor R At high frequencies, the DAC output impedance (C will produce the noise gain for the OPA2680 that may cause peaking in the closed-loop frequency response. ...
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Figure 8 shows an example of a DC-coupled interface with DC level-shifting, using a precision resistor network. An ac- coupled interface, as shown in Figure 9, has the advantage that the common-mode levels at the input of the modulator can ...
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DAC2902 V REF I = REF R SET FSA Ref Control REF Amp IN R SET 2k 0.1 F +1.25V Ref. FIGURE 10. Internal Reference Configuration. Using the internal reference resistor value results in a full-scale output of ...
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GROUNDING, DECOUPLING, AND LAYOUT INFORMATION Proper grounding and bypassing, short lead length, and the use of ground planes are particularly important for high-frequency designs. Multilayer PCBs are recommended for best perfor- mance since they offer distinct advantages such as minimiza- ...
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PACKAGE DRAWINGS 16 DAC2902 SBAS167A ...
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Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the ...