LTC1446 Linear Technology, LTC1446 Datasheet
LTC1446
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LTC1446 Summary of contents
Page 1
... The LTC1446 has an internal reference and a full-scale output of 4.095V. It operates from a single 4.5V to 5.5V supply. The LTC1446L has an internal reference and a full-scale output of 2.5V. It operates from a single 2.7V to 5.5V supply. The low power supply current makes the LTC1446 family ideal for battery-powered applications. These DACs are available in space saving 8-pin SO and PDIP packages and require no external components for operation ...
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... OUT OUT A N8 PACKAGE 8-LEAD PDIP T = 125 C, = 100 C/W JMAX JA Consult factory for Military grade parts. ELECTRICAL CHARACTERISTICS V = 4.5V to 5.5V (LTC1446), 2.7V to 5.5V (LTC1446L SYMBOL PARAMETER DAC Resolution DNL Differential Nonlinearity INL Integral Nonlinearity ZSE Zero-Scale Error V Offset Error Offset Error Tempco ...
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... ELECTRICAL CHARACTERISTICS V = 4.5V to 5.5V (LTC1446), 2.7V to 5.5V (LTC1446L SYMBOL PARAMETER Op Amp DC Performance Short-Circuit Current Low Short-Circuit Current High Output Impedance to GND AC Performance Voltage Output Slew Rate Voltage Output Settling Time (LTC1446 (LTC1446L SYMBOL PARAMETER CONDITIONS Digital I/O V Digital Input High Voltage ...
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... G09 LTC1446L Differential Nonlinearity 0.5 0.4 0.3 0.2 0.1 0 –0.1 –0.2 –0.3 –0.4 –0.5 0 512 1024 1536 2048 2560 3072 3584 4095 CODE 1446/46L G03 LTC1446L Min Supply Headroom for Full Output Swing vs Load Current 1.2 V < 1LSB OUT CODE: ALL 1's 1 2.5V OUT 0.8 0.6 0.4 0 LOAD CURRENT (mA) LTC1446/46L • ...
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... G11 D : The output of the shift register which becomes valid OUT on the rising edge of the serial clock. GND: Ground OUT Positive Supply Input. CC 4.5V V (LTC1446L). Requires a bypass capacitor to ground. LTC1446/LTC1446L LTC1446L Supply Current vs Temperature 700 690 680 V = 3.3V CC 670 660 V ...
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... LTC1446/LTC1446L W BLOCK DIAGRAM 1 CLK 24-BIT SHIFT REGISTER CS/ OUT POWER-ON RESET DIAGRA CLK t 9 B0-B B11 PREVIOUS WORD MSB CS/LD B11-A D OUT PREVIOUS WORD 6 REFERENCE 12-BIT LD DAC B DAC B REGISTER LD DAC A 12-BIT REGISTER DAC B0-A LSB t 8 B10-A ...
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... OS FS Nominal LSBs: LTC1446 n ) that LTC1446L LSB = 2.5V/4095 = 0.610mV Zero Scale Error (ZSE) The output voltage when the DAC is loaded with all zeros. Since this is a single supply part this value cannot be less than 0V. Integral Nonlinearity (INL) End-point INL is the maximum deviation from a straight line passing through the end points of the DAC transfer curve ...
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... The LTC1446/LTC1446L include an internal voltage refer- ence which is connected to each DAC. The LTC1446 has a full scale of 4.095V making 1LSB equal to 1mV. The LTC1446L has a full scale of 2.5V making 1LSB equal to 0.61mV. The LTC1446/LTC1446L rail-to-rail buffered outputs can source or sink 5mA when operating with a 5V supply while pulling to within 300mV of the positive supply voltage or ground ...
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... U TYPICAL APPLICATIONS This circuit shows how to use an LTC1446 and an ® LT 1077 to make a wide bipolar output swing 12-bit DAC with an offset that can be digitally programmed. V which can be set by loading the appropriate digital code A Wide Swing, Bipolar Output DAC with Digitally Controlled Offset ...
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... LTC1446/LTC1446L U TYPICAL APPLICATIONS This circuit shows how to use one LTC1446 to make an autoranging ADC. The microprocessor sets the reference span and the Common pin for the analog input by loading the appropriate digital code into the LTC1446. V controls the Common pin for the analog inputs to the ...
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... Plastic Small Outline (Narrow 0.150) (LTC DWG # 05-08-1610) 8 0.228 – 0.244 (5.791 – 6.197) 1 0.053 – 0.069 (1.346 – 1.752) 0 – 8 TYP 0.014 – 0.019 (0.355 – 0.483) LTC1446/LTC1446L 0.400* MAX 0.130 0.005 (3.302 0.127) 0.125 0.015 (3.175) MIN (0 ...
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... LTC1446/LTC1446L RELATED PARTS PART NUMBER DESCRIPTION LTC1257 Single 12-Bit V DAC, Full Scale: 2.048V, V OUT Reference Can Be Overdriven up to 12V, i.e., FS Max = 12V LTC1451 Single Rail-to-Rail Output 12-Bit DAC, Full Scale: 4.095V 4.5V to 5.5V Internal 2.048V Reference CC Brought Out to Pin LTC1452 Single Rail-to-Rail 12-Bit V ...