LT1019A-10 LINER [Linear Technology], LT1019A-10 Datasheet
LT1019A-10
Related parts for LT1019A-10
LT1019A-10 Summary of contents
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FEATURES Six Programmable Output Ranges ■ Unipolar 5V 10V Bipolar: ±5V, ±10V, ±2.5V, –2.5V to 7.5V Maximum 16-Bit INL Error: ±1 LSB over Temperature ■ ■ Low 1μA (Maximum) Supply Current Guaranteed Monotonic over Temperature ■ ...
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LTC2753 ABSOLUTE MAXIMUM RATINGS GND .................................±0.3V OUT1X OUT2X COM REF to GND ...................±15V VOSX FBX OFSX GND .................................................. –0. ...
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ELECTRICAL CHARACTERISTICS specifi cations which apply over the full operating temperature range, otherwise specifi cations are at T SYMBOL PARAMETER CONDITIONS Static Performance Resolution Monotonicity DNL Differential Nonlinearity INL Integral Nonlinearity GE Gain Error All Output Ranges GE Gain Error ...
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LTC2753 ELECTRICAL CHARACTERISTICS specifi cations which apply over the full operating temperature range, otherwise specifi cations are at T SYMBOL PARAMETER Power Supply V Supply Voltage DD I Supply Current Digital Inputs V Digital Input High Voltage ...
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TIMING CHARACTERISTICS otherwise specifi cations are 25°C. A SYMBOL PARAMETER t UPD Valid to I/O Propagation Delay 17 D/S Valid to READ Rising Edge READ Rising Edge to UPD Rising Edge 19 t UPD ...
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LTC2753 TIMING CHARACTERISTICS otherwise specifi cations are 25°C. A SYMBOL PARAMETER V = 2. READ Falling Edge to UPD Rising Edge 22 t I/O Bus Hi-Z to Read Rising Edge 23 t Read ...
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TYPICAL PERFORMANCE CHARACTERISTICS LTC2753-16 Integral Nonlinearity (INL REF ±10V RANGE 0.6 0.4 0.2 0.0 –0.2 –0.4 –0.6 –0.8 –1.0 0 16384 32768 65535 49152 CODE 2753 G01 DNL vs Temperature 1.0 ...
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LTC2753 TYPICAL PERFORMANCE CHARACTERISTICS LTC2753-16 INL 1.0 0.8 0.6 0.4 +INL 0.2 0.0 –INL –0.2 –0.4 –0.6 –0.8 –1.0 2.5 3 3.5 4 4.5 5 5.5 V (V) DD 2751 G09b LTC2753-14 Integral Nonlinearity (INL) 1.0 V ...
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TYPICAL PERFORMANCE CHARACTERISTICS LTC2753-12, LTC2753-14, LTC2753-16 Midscale Glitch UPD 5V/DIV V OUT 2mV/DIV 500ns/DIV USING AN LT1469 REF FEEDBACK RANGE Logic Threshold vs Supply Voltage 2 1.75 1.5 RISING ...
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LTC2753 PIN FUNCTIONS R (Pin 1): Center Tap Point for the Reference Inverting COM Resistors. The 20k reference inverting resistors R1 and R2 are connected internally from REFA, respectively (see Block Diagram). For normal operation ...
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PIN FUNCTIONS output the contents of the selected register (see Table 1). For single-span operation, readback of the span I/O pins is disabled. UPD (Pin 36): Update and Buffer Select Pin. When READ is held low and UPD is asserted ...
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LTC2753 BLOCK DIAGRAM 16 DATA I /O I/O 6-14, 22-28 PORT SPAN I/O 3, 38, 33 PORT 17 A1 DAC ADDRESS REFA R IN COM DATA INPUT ...
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TIMING DIAGRAMS WR DATA/SPAN I/O INPUT UPD D/S ADDRESS CLR READ WR DATA/SPAN I/O INPUT DATA/SPAN I/O OUTPUT ADDRESS A1-A0 UPD D/S Write, Update and Clear Timing VALID ...
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LTC2753 OPERATION Output Ranges The LTC2753 is a dual current-output, parallel-input preci- sion multiplying DAC with software-programmable output ranges. SoftSpan provides two unipolar output ranges ( and 0V to 10V), and four bipolar ranges (±2.5V, ±5V, ±10V and ...
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OPERATION These devices also have a power-on reset that initializes both DACs any output range. The DACs OUT power up in the 0V-5V range if the part is in SoftSpan confi guration; for manual span ...
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LTC2753 OPERATION System Offset Adjustment Many systems require compensation for overall system offset. The R and R offset adjustment pins are VOSA VOSB provided for this purpose. For noise immunity and ease of adjustment, the control voltage is attenuated to ...
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OPERATION—EXAMPLES 1. Load ±5V range with the output at 0V. Note that since span and code are updated together, the output, if started at 0V, will stay there. The 16-Bit DAC code is shown in hex for compactness. WR SPAN ...
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LTC2753 APPLICATIONS INFORMATION Op Amp Selection Because of the extremely high accuracy of the 16-bit LTC2753-16, careful thought should be given to op amp selection in order to achieve the exceptional performance of which the part is capable. Fortunately, the ...
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... Table 7. Partial List of LTC Precision References Recommended for Use with the LTC2753 with Relevant Specifi cations INITIAL REFERENCE TOLERANCE LT1019A-5, ±0.05% LT1019A-10 LT1236A-5, ±0.05% LT1236A-10 LT1460A-5, ±0.075% LT1460A-10 LT1790A-2.5 ±0.05% ...
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LTC2753 APPLICATIONS INFORMATION Grounding As with any high resolution converter, clean grounding is important. A low impedance analog ground plane and star grounding techniques should be used the star ground with as low a resistance as possible. When ...
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APPLICATIONS INFORMATION ALTERNATE AMPLIFIER FOR OPTIMUM SETTLING TIME PERFORMANCE 4,32 I OUT2 6 1 ZETEX BAT54S REF 1/2 LT1469 2 – 150pF Figure 2. Optional Circuits for Driving I 200Ω 200Ω 2 – ...
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LTC2753 TYPICAL APPLICATIONS Dual 16-Bit V V REF 1/2 LT1469 2 – 150pF 22 DAC with Software-Selectable Ranges OUT LTC2753- OFSA COM DAC A R2 C1* REFA 48 ...
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PACKAGE DESCRIPTION 5.15 ± 0.05 5.15 ± 0.05 0.25 ±0.05 0.50 BSC RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED 7.00 ± 0.10 (4 SIDES) PIN 1 TOP MARK (SEE NOTE 6) NOTE: ...
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LTC2753 TYPICAL APPLICATION Offset and Gain Trim Circuits. Powering OUT C13 LT1027 10μF TRIM R2 C20 5 GND 10k 10μ GAIN TRIM DATA I ...