Datasheet LT1027 (Analog Devices)
| 制造商 | Analog Devices |
| 描述 | Precision 5 Volt Reference |
| 页数 / 页 | 8 / 1 — FEATURES. DESCRIPTIO. APPLICATIO S. TYPICAL APPLICATIO. Supplying VREF … |
| 文件格式/大小 | PDF / 220 Kb |
| 文件语言 | 英语 |
FEATURES. DESCRIPTIO. APPLICATIO S. TYPICAL APPLICATIO. Supplying VREF and VCC to the LTC®1290 12-bit ADC. Output Voltage
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LT1027 Precision 5V Reference
U FEATURES DESCRIPTIO
■ Very Low Drift: 2ppm/°C Max TC The LT®1027 is a precision reference with extra-low drift, ■ Pin Compatible with LT1021-5, REF-02, superior accuracy, excellent line and load regulation and (PDIP Package) low output impedance at high frequency. This device is ■ Output Sources 15mA, Sinks 10mA intended for use in 12- to 16-bit A-to-D and D-to-A ■ Excellent Transient Response Suitable for systems where demanding accuracy requirements must A-to-D Reference Inputs be met without the use of power hungry, heated substrate ■ Noise Reduction Pin references. The fast settling output recovers quickly from ■ Excellent Long Term Stability load transients such as those presented by A-to-D converter ■ Less Than 1ppm P-P Noise (0.1Hz to 10Hz) reference inputs. The LT1027 brings together both
U
outstanding accuracy and temperature coefficient
APPLICATIO S
specifications. ■ A-to-D and D-to-A Converters The LT1027 reference is based on LTC’s proprietary ■ Digital Voltmeters advanced subsurface Zener bipolar process which ■ Reference Standard eliminates noise and stability problems associated with ■ Precision Current Source surface breakdown devices. , LTC and LT are registered trademarks of Linear Technology Corporation.
U TYPICAL APPLICATIO Supplying VREF and VCC to the LTC®1290 12-bit ADC Output Voltage
5.006 CH0 VCC SCLK CH1 ACLK CH2 DOUT TO µC 5.004 ANALOG CH3 DIN INPUTS CH4 CS CH5 5.002 8V TO 40V CH6 CH7 LTC1290 COM 5.000 VIN 4.998 VOUT REF+ OUTPUT VOLTAGE (V) + 2.2µF LT1027 REF– 4.996 + V AGND TRIM 10k 22µF V– DGND 4.994 GND –50 –25 0 25 50 75 100 TEMPERATURE (°C) 1027 TA01 1027 TA02 sn1027 1027fcs 1
U FEATURES DESCRIPTIO
■ Very Low Drift: 2ppm/°C Max TC The LT®1027 is a precision reference with extra-low drift, ■ Pin Compatible with LT1021-5, REF-02, superior accuracy, excellent line and load regulation and (PDIP Package) low output impedance at high frequency. This device is ■ Output Sources 15mA, Sinks 10mA intended for use in 12- to 16-bit A-to-D and D-to-A ■ Excellent Transient Response Suitable for systems where demanding accuracy requirements must A-to-D Reference Inputs be met without the use of power hungry, heated substrate ■ Noise Reduction Pin references. The fast settling output recovers quickly from ■ Excellent Long Term Stability load transients such as those presented by A-to-D converter ■ Less Than 1ppm P-P Noise (0.1Hz to 10Hz) reference inputs. The LT1027 brings together both
U
outstanding accuracy and temperature coefficient
APPLICATIO S
specifications. ■ A-to-D and D-to-A Converters The LT1027 reference is based on LTC’s proprietary ■ Digital Voltmeters advanced subsurface Zener bipolar process which ■ Reference Standard eliminates noise and stability problems associated with ■ Precision Current Source surface breakdown devices. , LTC and LT are registered trademarks of Linear Technology Corporation.
U TYPICAL APPLICATIO Supplying VREF and VCC to the LTC®1290 12-bit ADC Output Voltage
5.006 CH0 VCC SCLK CH1 ACLK CH2 DOUT TO µC 5.004 ANALOG CH3 DIN INPUTS CH4 CS CH5 5.002 8V TO 40V CH6 CH7 LTC1290 COM 5.000 VIN 4.998 VOUT REF+ OUTPUT VOLTAGE (V) + 2.2µF LT1027 REF– 4.996 + V AGND TRIM 10k 22µF V– DGND 4.994 GND –50 –25 0 25 50 75 100 TEMPERATURE (°C) 1027 TA01 1027 TA02 sn1027 1027fcs 1