AD780: 2.5 V/3.0 V Ultrahigh Precision Bandgap Voltage Reference |
The AD780 is an ultrahigh precision bandgap reference voltage which provides a 2.5 V or 3.0 V output from inputs between 4.0 V and 36 V. Low initial error and temperature drift combined with low output noise and the ability to drive any value of capacitance make the AD780 the ideal choice for enhancing the performance of high resolution ADCs and DACs and for any general purpose precision reference ...More
The AD780 is an ultrahigh precision bandgap reference voltage which provides a 2.5 V or 3.0 V output from inputs between 4.0 V and 36 V. Low initial error and temperature drift combined with low output noise and the ability to drive any value of capacitance make the AD780 the ideal choice for enhancing the performance of high resolution ADCs and DACs and for any general purpose precision reference application. A unique low headroom design facilitates a 3.0 V output from a 5.0 V ± 10% input, providing a 20% boost to the dynamic range of an ADC, over performance with existing 2.5 V references.
The AD780 can be used to source or sink up to 10 mA and can be used in series or shunt mode, thus allowing positive or negative output voltages without external components. This makes it suitable for virtually any high performance reference application. Unlike some competing references, the AD780 has no "region of possible instability." The part is stable under all load conditions when a 1 µF bypass capacitor is used on the supply.
A temperature output pin is provided on the AD780. This provides an output voltage that varies linearly with temperature, allowing the AD780 to be configured as a temperature transducer while providing a stable 2.5 V or 3.0 V output.
The AD780 is a pin-compatible performance upgrade for the LT1019(A)-2.5 and the AD680. The latter is targeted toward low power applications.
The AD780 is available in two grades in plastic DIP, SOIC and cerdip packages. The AD780AN, AD780AR, AD780BN and AD780BR are specified for operation from -40°C to +85°C. The AD780SQ and AD780SQ/883B are specified for -55°C to +125°C operation.
| Part# | Vout | Initial Accuracy (%) | Ref Out TC (ppm/C) | 0.1-10 Hz Noise (µV p-p) | Ref Output Current (mA) | Supply Voltage Range (V) | Temp Range(s) | Supply Current | Reference Type | Package | Price* (1000-4999) | Product Description |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ADR130 | +0.5/+1 Pin Programmable | 0.35 | 5 | 3 | 4 | 2V to 18V | -40 to +125 | 150µA | Series | TSOT | $0.92 | Precision, Sub-Band Gap, Series Voltage Reference |
| AD584 | +2.5/+5/+7.5/+10 Prog | 0.05 | 5 | 50 | 10 | +4.5 to +30 | -55 to +125, 0 to +70 | 1mA | Series-Multi/Select Out | DIP, TO-92 | $3.05 | 10.000 V, 7.500 V, 5.000 V and 2.500 V, Pin Programmable Precision Voltage Reference |
| ADR510 | 1.0 | 0.35 | 70 | 4 | n/a | n/a, shunt ref | -40 to +85 | n/a | Shunt | SOT23 | $0.60 | 1.0 V Precision, Low Noise, Shunt Voltage Reference |
| AD1580 | 1.2 | 0.08 | 50 | 5 | n/a | n/a, shunt ref | -40 to +85 | n/a | Shunt | SC70, SOT23 | $0.61 | 1.2 V Micropower, Precision Shunt Voltage Reference |
| ADR512 | 1.2 | 0.3 | 60 | 4 | n/a | n/a shunt ref | -40 to +85 | n/a | Shunt | SOT23 | $0.60 | 1.2 V Precision, Low Noise Shunt Voltage Reference |
| ADR280 | 1.2 | 0.4 | 5 | 2.2 | 100 | +2.4 to +5.5 | -40 to +85 | 16µA | Series | SC70, SOT23 | $0.76 | 1.20 V, Low Noise, Low Power, High PSRR, Precision Voltage Reference |
| AD589 | 1.2 | 1.2 | 10 | 5 | n/a | n/a, Shunt Type Reference | -55 to +125, 0 to +70 | 50µA | Shunt | Metal Can, SOIC | $1.33 | Two-Terminal IC 1.2 V Shunt Reference |
| ADR1581 | 1.25 | 0.12 | 50 | 4.5 | n/a | n/a, shunt ref | -40 to +85 | n/a | Shunt | SOT23 | $0.61 | 1.25 V Micropower, Precision Shunt Voltage Reference |
| ADR127 | 1.25 | 0.12 | 3 | 5 | 5 | +2.7 to +18 | -40 to +125 | 125µA | Series | TSOT | $0.92 | 1.25V, Precision Micropower LDO Voltage Reference |
| ADR827 | 1.25 | 0.4 | 15 | 8 | 5 | +2.7V to +15V | -40 to +125 | 400µA | Series | MSOP | $1.11 | Low Power, Precision Reference and Op Amp |
| ADR1500 | 1.2875 | 0.2 | 170 | 5 | n/a | n/a, shunt reference | -40 to +85 | n/a | Shunt | SC70 | $1.03 | 1.2875 V Micropower, Shunt Voltage Reference |
| ADR318 | 1.8 | 0.27 | 5 | 5 | 5 | +2.4 to +15 | 0 to +70 | 120µA | Series-Low Dropout | SOT23 | $0.82 | 1.8 V Precision Voltage Reference |
| AD588 | 10 | 0.01 | 1.5 | 6 | 10 | Vdd-Vss = (Vout+2) to +36 | -25 to +85, 0 to +70 | 10mA | Series-Multi/Select Out | DIP | $15.21 | +10 V, +5 V, ±5 V tracking, −5 V, −10 V, High Precision Voltage Reference |
| AD688 | 10 | 0.02 | 1.5 | 6 | 10 | Vdd-Vss = (Vout+2) to 36 | -40 to +85, -55 to +125 | 12mA | Series-Multi/Select Out | DIP, SOIC | $9.19 | High Precision ±10 V Reference |
| AD581 | 10 | 0.05 | 5 | 40 | 10 | +12 to +30 | -55 to +125, 0 to +70 | 1mA | Series | TO-52 | $4.14 | High Precision 10 V IC Reference |
| AD587 | 10 | 0.05 | 5 | 4 | 10 | +13.5 to +36 | -55 to +125, 0 to +70 | 4mA | Series | DIP, SOIC | $2.55 | High Precision 10 V Reference |
| ADR01 | 10 | 0.05 | 3 | 20 | 10 | +12 to +40 | -40 to +125, 0 to +70 | 1mA | Series | SC70, SOIC, TSOT | $1.00 | Ultra-Compact, Precision 10V Voltage Reference |
| REF01 | 10 | 0.3 | 3 | 30 | 10 | +12 to +40 | -40 to +85, -55 to +125 | 1.4mA | Series | DIP, SOIC, TO-99 | $1.21 | +10V Precision Voltage Reference |
| ADR440 | 2.048 | 0.05 | 1 | 1 | 10 | +3 to +18 | -40 to +125 | 3.75mA | Series-Low Dropout | DIP, MSOP, SOIC | $2.53 | 2.048 V, Ultralow Noise, LDO XFET® Voltage Reference with +10/-5 mA Output Current Capability |
| ADR420 | 2.048 | 0.05 | 1 | 1.75 | 10 | +4.0 to +18 | -40 to +125 | 500µA | Series | MSOP, SOIC | $2.82 | 2.048 V XFET® Voltage Reference |
| ADR430 | 2.048 | 0.05 | 1 | 3.5 | 30 | +4.1 to +18 | -40 to +125 | 800µA | Series | MSOP, SOIC | $2.96 | 2.048 V High Precision, Low Noise XFET® Reference with Output Sink and Source Capability |
| ADR5040 | 2.048 | 0.1 | 10 | - | n/a | n/a, is shunt ref | -40 to +125 | n/a | Shunt | SC70, SOT23 | $0.30 | Precision Micropower Shunt Mode Voltage Reference, 2.048 V Output |
| REF191 | 2.048 | 0.1 | 2 | 20 | 30 | +2.3 to +15 | -40 to +85 | 45µA | Series-Low Dropout | DIP, SOIC | $1.38 | 2.048, Precision Micropower, Low Dropout, Low Voltage Reference |
| ADR360 | 2.048 | 0.15 | 9 | 6.8 | 5 | +2.35 to +15 | -40 to +125 | 190µA | Series-Low Dropout | TSOT | $0.78 | Low Power, Low Noise Voltage Reference w/ Sink/Source Capability, 2.048 VOUT |
| ADR370 | 2.048 | 0.2 | 30 | 70 | 5 | +2.3 to +15 | -40 to +125 | 72µA | Series-Low Dropout | SOT23 | $0.75 | 2.048 V Tiny Package Precision Reference |
| ADR380 | 2.048 | 0.24 | 5 | 5 | 5 | +2.4 to +18 | -40 to +85 | 120µA | Series-Low Dropout | SOT23 | $0.76 | 2.048 V Bandgap Voltage Reference |
| REF43 | 2.5 | 0.02 | 25 | 4 | 20 | +4.5 to +40 | -40 to +85 | 450µA | Series | DIP, SOIC | $3.69 | +2.5V Low Power Precision Voltage Reference |
| AD780 | 2.5 | 0.04 | 3 | 4 | 10 | +4 to +36 | -40 to +85 | 1mA | Series-Multi/Select Out | DIP, SOIC | $3.65 | 2.5 V/3.0 V Ultrahigh Precision Bandgap Voltage Reference |
| ADR441 | 2.5 | 0.04 | 1 | 1.2 | 10 | +3 to +18 | -40 to +125 | 3.75mA | Series-Low Dropout | DIP, MSOP, SOIC | $2.53 | 2.5 V, Ultralow Noise, LDO XFET® Voltage Reference with +10/-5 mA Output Current Capability |
| ADR431 | 2.5 | 0.04 | 1 | 3.5 | 30 | +4.5 to +18 | -40 to +125 | 800µA | Series | MSOP, SOIC | $2.96 | 2.5 V High Precision, Low Noise XFET® Reference with Output Sink and Source Capability |
| ADR421 | 2.5 | 0.04 | 1 | 1.75 | 10 | +4.5 to +18 | -40 to +125 | 500µA | Series | MSOP, SOIC | $2.82 | 2.5 V XFET® Voltage Reference |
| AD1582 | 2.5 | 0.08 | 50 | 70 | 5 | +2.7 to +12 | -40 to +125 | 70µA | Series-Low Dropout | SOT23 | $0.61 | 2.5V Micropower, Precision Series Mode Voltage Reference |
| ADR291 | 2.5 | 0.08 | 3 | 8 | 5 | +3 to +15 | -40 to +125 | 12µA | Series-Low Dropout | SOIC, TSSOP | $1.78 | Precision, Micropower 2.5 V XFET Reference |
| REF192 | 2.5 | 0.08 | 2 | 25 | 30 | +2.6 to +15 | -40 to +85 | 45µA | Series-Low Dropout | DIP, SOIC, TSSOP | $1.38 | Precision Micropower, Low Dropout, Low Voltage References, Nom. Vo=2.50 V |
| ADR5041 | 2.5 | 0.1 | 10 | - | n/a | n/a, shunt ref | -40 to +125 | n/a | Shunt | SC70, SOT23 | $0.30 | Precision, Micropower, Shunt Mode Voltage Reference, Vout = 2.5V |
| ADR03 | 2.5 | 0.1 | 3 | 10 | 10 | +4.5 to +40 | -40 to +125 | 1mA | Series | SC70, SOIC, TSOT | $1.03 | Ultra-Compact, Precision 2.5 V Voltage Reference |
| ADR121 | 2.5 | 0.12 | 3 | 10 | 5 | +2.8 to +18 | -40 to +125 | 125µA | Series-Low Dropout |
