Datasheet LT6658 (Analog Devices)
| Manufacturer | Analog Devices |
| Description | Precision Dual Output, High Current, Low Noise, Voltage Reference |
| Pages / Page | 44 / 1 — FEATURES. DESCRIPTION. Dual Output Tracking Reference. Low Drift:. … |
| Revision | C |
| File Format / Size | PDF / 4.2 Mb |
| Document Language | English |
FEATURES. DESCRIPTION. Dual Output Tracking Reference. Low Drift:. A-Grade: 10ppm/°C Max. B-Grade: 20ppm/°C Max. High Accuracy:
Model Line for this Datasheet
- LT6658AHDE-3#TRPBF LT6658AHDE-3.3#TRPBF LT6658AHDE-5#TRPBF LT6658AHMSE-1.2#PBF LT6658AHMSE-1.2#TRPBF LT6658AHMSE-1.8#PBF LT6658AHMSE-1.8#TRPBF LT6658AHMSE-2.5#PBF LT6658AHMSE-2.5#TRPBF LT6658AHMSE-3#PBF LT6658AHMSE-3#TRPBF LT6658AHMSE-3.3#PBF LT6658AHMSE-3.3#TRPBF LT6658AHMSE-5#PBF LT6658AHMSE-5#TRPBF LT6658AIMSE-1.2#PBF LT6658AIMSE-1.2#TRPBF LT6658AIMSE-2.5#PBF LT6658AIMSE-2.5#TRPBF LT6658AIMSE-3#PBF LT6658AIMSE-3#TRPBF LT6658AIMSE-3.3#PBF LT6658AIMSE-3.3#TRPBF LT6658AIMSE-5#PBF LT6658AIMSE-5#TRPBF LT6658BHDE-2.5#TRPBF LT6658BHDE-3#TRPBF LT6658BHDE-3.3#TRPBF LT6658BHDE-5#TRPBF LT6658BHMSE-1.2#PBF LT6658BHMSE-1.2#TRPBF LT6658BHMSE-1.8#PBF LT6658BHMSE-1.8#TRPBF LT6658BHMSE-2.5#PBF LT6658BHMSE-2.5#TRPBF LT6658BHMSE-3#PBF LT6658BHMSE-3#TRPBF LT6658BHMSE-3.3#PBF LT6658BHMSE-3.3#TRPBF LT6658BHMSE-5#PBF LT6658BIMSE-1.2#PBF LT6658BIMSE-1.2#TRPBF LT6658BIMSE-1.8#PBF LT6658BIMSE-1.8#TRPBF LT6658BIMSE-2.5#PBF LT6658BIMSE-2.5#TRPBF LT6658BIMSE-3#PBF LT6658BIMSE-3#TRPBF LT6658BIMSE-3.3#PBF LT6658BIMSE-3.3#TRPBF LT6658BIMSE-5#PBF LT6658BIMSE-5#TRPBF
Text Version of Document
LT6658 Precision Dual Output, High Current, Low Noise, Voltage Reference
FEATURES DESCRIPTION
n
Dual Output Tracking Reference
The LT®6658 is a family of precision dual output references n Each Output Configurable to 6V combining the performance of a precision voltage refer- n Output 1: 150mA Source/20mA Sink ence and a linear regulator that we call the Refulator™. n Output 2: 50mA Source/20mA Sink Both outputs are ideal for driving the reference inputs of n
Low Drift:
high resolution ADCs and DACs, even with heavy load- n
A-Grade: 10ppm/°C Max
ing, while simultaneously powering microcontrollers and n
B-Grade: 20ppm/°C Max
other circuitry. Both outputs have the same precision n
High Accuracy:
specifications and track each other over temperature and n
A-Grade: ±0.05% Max
load. Each output can be configured with external resis- n
B-Grade: ±0.1% Max
tors to give an output voltage up to 6V. n
Low Noise: 1.5ppmP-P (0.1Hz to 10Hz)
Using Kelvin connections, the LT6658 typically has n
Wide Operating Voltage Range to 36V
0.1ppm/mA load regulation with up to 150mA load cur- n
Load Regulation: 0.25µV/mA
rent. A noise reduction pin is available to band-limit and n AC PSRR: 96dB at 10kHz lower the total integrated noise. n Kelvin Sense Connection on Outputs n Separate supply pins are provided for each output, provid- Thermal Shutdown n ing an option to reduce power consumption and isolate Separate Supply Pins for Each Output n the buffer amplifiers. The outputs have excellent supply Available Output Voltage Options: 1.2V, 1.8V, 2.5V, 3V, rejection and are stable with 1µF to 50µF capacitors. 3.3V, 5V. All Options are Adjustable n Available in Exposed Pad Package MSE16 and The LT6658 is available in a 16-lead MSOP and DFN with 4mm × 3mm DFN an exposed pad for thermal management. Short circuit and thermal protection help to prevent thermal overstress.
APPLICATIONS
All registered trademarks and trademarks are the property of their respective owners. n Microcontroller or FPGA with ADC/DAC Applications n Data Acquisition Systems n Automotive Control and Monitoring n Precision Low Noise Regulators n Instrumentation and Process Control
TYPICAL APPLICATION Output Voltage Temperature Drift Both Outputs Precision Dual Output 2.5V Reference and Supply
2.502 VOUT2 V 2.501 IN1 VOUT2_F 2.5V 50mA VIN2 VOUT2_S 1µF TAGE (V) VIN R 2.500 5V TO 36V V LOAD2 IN LT6658-2.5 OD V OUTPUT VOL 0.1µF OUT1 V 2.499 OUT1_F 2.5V ILOAD1 = 150mA 150mA BYPASS VOUT1_S V 1µF OUT1 1µF VOUT2 GND RLOAD1 2.498–50 –25 0 25 50 75 100 125 150 6658 TA01a TEMPERATURE (°C) 6658 TA01b Rev. C Document Feedback For more information www.analog.com 1 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Available Options Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
FEATURES DESCRIPTION
n
Dual Output Tracking Reference
The LT®6658 is a family of precision dual output references n Each Output Configurable to 6V combining the performance of a precision voltage refer- n Output 1: 150mA Source/20mA Sink ence and a linear regulator that we call the Refulator™. n Output 2: 50mA Source/20mA Sink Both outputs are ideal for driving the reference inputs of n
Low Drift:
high resolution ADCs and DACs, even with heavy load- n
A-Grade: 10ppm/°C Max
ing, while simultaneously powering microcontrollers and n
B-Grade: 20ppm/°C Max
other circuitry. Both outputs have the same precision n
High Accuracy:
specifications and track each other over temperature and n
A-Grade: ±0.05% Max
load. Each output can be configured with external resis- n
B-Grade: ±0.1% Max
tors to give an output voltage up to 6V. n
Low Noise: 1.5ppmP-P (0.1Hz to 10Hz)
Using Kelvin connections, the LT6658 typically has n
Wide Operating Voltage Range to 36V
0.1ppm/mA load regulation with up to 150mA load cur- n
Load Regulation: 0.25µV/mA
rent. A noise reduction pin is available to band-limit and n AC PSRR: 96dB at 10kHz lower the total integrated noise. n Kelvin Sense Connection on Outputs n Separate supply pins are provided for each output, provid- Thermal Shutdown n ing an option to reduce power consumption and isolate Separate Supply Pins for Each Output n the buffer amplifiers. The outputs have excellent supply Available Output Voltage Options: 1.2V, 1.8V, 2.5V, 3V, rejection and are stable with 1µF to 50µF capacitors. 3.3V, 5V. All Options are Adjustable n Available in Exposed Pad Package MSE16 and The LT6658 is available in a 16-lead MSOP and DFN with 4mm × 3mm DFN an exposed pad for thermal management. Short circuit and thermal protection help to prevent thermal overstress.
APPLICATIONS
All registered trademarks and trademarks are the property of their respective owners. n Microcontroller or FPGA with ADC/DAC Applications n Data Acquisition Systems n Automotive Control and Monitoring n Precision Low Noise Regulators n Instrumentation and Process Control
TYPICAL APPLICATION Output Voltage Temperature Drift Both Outputs Precision Dual Output 2.5V Reference and Supply
2.502 VOUT2 V 2.501 IN1 VOUT2_F 2.5V 50mA VIN2 VOUT2_S 1µF TAGE (V) VIN R 2.500 5V TO 36V V LOAD2 IN LT6658-2.5 OD V OUTPUT VOL 0.1µF OUT1 V 2.499 OUT1_F 2.5V ILOAD1 = 150mA 150mA BYPASS VOUT1_S V 1µF OUT1 1µF VOUT2 GND RLOAD1 2.498–50 –25 0 25 50 75 100 125 150 6658 TA01a TEMPERATURE (°C) 6658 TA01b Rev. C Document Feedback For more information www.analog.com 1 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Available Options Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
