ADR280: 1.2 V Ultralow Power High PSRR Voltage Reference |
The ADR280 is a 1.2 V band gap core reference with excellent line regulation and power supply rejection designed specifically for applications experiencing heavy dynamic supply variations, such as data converter references in GSM, GPRS, and 3G mobile station applications. Devices such as the AD6535 that have an analog baseband IC with on-board baseband, audio codecs, voltage regulators, and ...More
The ADR280 is a 1.2 V band gap core reference with excellent line regulation and power supply rejection designed specifically for applications experiencing heavy dynamic supply variations, such as data converter references in GSM, GPRS, and 3G mobile station applications. Devices such as the AD6535 that have an analog baseband IC with on-board baseband, audio codecs, voltage regulators, and battery chargers rely on the ability of the ADR280 to reject input battery voltage variations during RF power amplifier activity.
In addition to mobile stations, the ADR280 is suitable for a variety of general-purpose applications. Most band gap refer-ences include internal gain for specific outputs, which simplifies the user’s design, but compromises on the cost, form factor, and flexibility. The ADR280, on the other hand, optimizes the band gap core voltage and allows users to tailor the voltage, current, or transient response by simply adding their preferred op amps.
The ADR280 operates on a wide supply voltage range from 2.4 V to 5.5 V. It is available in compact 3-lead SOT-23 and SC70 packages. The device is specified over the extended indus-trial temperature range of −40°C to +85°C.
Applications
Data Sheet, Rev. C, 4/07
Essential companion part for AD6535 for handset applications. It also can be used as a general purpose part where low noise and low power reference is needed. Its tiny SC70 package makes it ideal for hand held devices applications.
| 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 | TSOT | $0.92 | 2.5V, Precision Micropower LDO Voltage Reference |
| ADR361 | 2.5 | 0.12 | 9 | 8.25 |
