ADR280 AD | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 8
Technical content
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. No license is granted by implication or oth- erwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective companies. Tel: 781/329-4700 www.analog.com Fax: 781/326-8703 © 2003 Analog Devices, Inc. All rights reserved. ADR280
1.2 V Ultralow Power
High PSRR Voltage Reference
FEATURES
1.2 V Precision Output
Excellent Line Regulation, 2 ppm/V T ypical High Power Supply Ripple Rejection, –80 dB at 220 Hz Ultralow Power, Supply Current 16 A Maximum T emperature Coefficient, 40 ppm/oC Maximum Low Noise, 12.5 nV/÷Hz T ypical Operating Supply Range, 2.4 V to 5.5 V Compact 3-Lead SOT -23 and SC70 Packages
APPLICATIONS
GSM, GPRS, 3G Mobile Stations Portable Battery-Operated Electronics Low Voltage Converter References Wireless Devices PIN CONFIGURATIONS 3-Lead SOT -23 (RT Suffix) VOUT V+ 1
3 ADR280 V–
(KS Suffix) VOUT 1 TEMPERA TURE (C) –15 –40 100–20 LINE REGULA TION (ppm/V) 0 20 40 60 8 0 –10 3V TO 5V Figure 1. Line Regulation vs. Temperature RF power amplifier activity. transient response by simply adding their preferred op amps. temperature range of –40°C to +85°C.
–2– ADR280–SPECIFICATIONS –3– Typical Performance Characteristics–ADR280 ORDERING GUIDE Temperature Package Package Top Output Number of Model Range Description Option Mark Voltage (V) Parts per Reel ADR280ART -R2 –40°C to +85°C SOT -23 RT -3 RBA 1.200 250 ADR280ART -REEL7 –40°C to +85°C SOT -23 RT -3 RBA 1.200 3,000 ADR280ART -REEL –40°C to +85°C SOT -23 RT -3 RBA 1.200 10,000 ADR280AKS-R2 –40°C to +85°C SC70 KS-3 RBA 1.200 250 ADR280AKS-REEL7 –40°C to +85°C SC70 KS-3 RBA 1.200 3,000 ADR280AKS-REEL –40°C to +85°C SC70 KS-3 RBA 1.200 10,000 (VIN = 2.55 V to 5.5 V, TA = 25°C, unless otherwise noted.) Parameter Symbol Conditions Min T yp1 Max Unit Output Voltage2 VOUT 1.195 1.200 1.205 V Temperature Coefficient TCVo 0°C < TA < 50°C 5 20 ppm/oC –40°C < TA < +85°C 10 40 ppm/oC Line Regulation VOUT/VIN 2.55 V < VIN < 5.5 V, No Load 2 12 ppm/V Supply Current IIN 2.4 V < VIN < 5.5 V, No Load 10 16 µA Ground Current IGND V– Grounded, ILOAD = 10 µA 12 20 µA Input Voltage Range VIN 2.4 5.5 V Operating Temperature Range TA –40 +85 °C Nominal Load Capacitance COUT 1 µF Output Noise Voltage VN f = 10 Hz to 10 kHz 12.5 µVrms Output Noise Density eN f = 400 kHz 12.5 nV/÷Hz Power Supply Ripple Rejection3 PSRR ILOAD = 10 µA –80 dB Start-Up Time tON 2 ms NOTES 1Typical values represent average readings taken at room temperature. 2Conditions: 2.4 V < VIN < 5.5 V, 0 µA < IOUT < 10 µA, –40°C < TA < +85°C. 3Power supply ripple rejection measurement applies to a changing input voltage (VIN) waveform with a nominal 3.6 V baseline that drops to a 3 V value for 380 µs at a 4.6 ms repetition rate. Specifications subject to change without notice.
ELECTRICAL CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS1, 2 NOTES 1Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those listed in the operational sections THERMAL RESISTANCE Package T ype JA* JC Unit SOT -23 230 146 °C/W SC70 376 102 °C/W * JA is specified for the worst-case conditions, i.e., JA is specified for device sol- dered in circuit board for surface-mount packages. PIN FUNCTION DESCRIPTIONS Mnemonic Pin No. SOT -23 SC70 Description
1 V+ VOUT High Supply Voltage Input
2 VOUT V+ Output Voltage
3 V– V– Low Supply Voltage Input
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the ADR280 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. SOT -23 VOUT V+ 1 of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. 2 Absolute Maximum Ratings apply at 25°C, unless otherwise noted. REV. A REV. A
–2– ADR280–SPECIFICATIONS –3– Typical Performance Characteristics–ADR280 TEMPERA TURE (C) 1.20225 –40 100–20 VOUT (V) 0 20 40 60 8 0 NO LOAD 1.20200 1.20175 1.20150 1.20125 1.20100 1.20075 1.20050 1.20025 1.20000 TPC 1. VOUT vs. Temperature TEMPERA TURE (C) –40 100–20 IIN (A) 0 20 40 60 8 0 VIN = 5V VIN = 3V TPC 2. Supply Current vs. Temperature TEMPERA TURE (C) –15 –40 100–20 LINE REGULA TION (ppm/V) 0 20 40 60 8 0 –10 3V TO 5V TPC 3. Line Regulation vs. Temperature Ch1 50.0V M 1.00 s TPC 4. Noise Voltage Peak-to-Peak 10 Hz to 10 kHz –100 –80 –60 –40 NOISE POWER DENSITY (dBm) 10.07.55.02.50 FREQUENCY (kHz) TPC 5. Output Noise Density Plot (VIN = 3.6 V, COUT = 1 µF , CIN = 1 µF) 10dB/DIV –40dB 0Hz 100kHz TPC 6. Voltage Noise Density 0 Hz to 100 kHz REV. A REV. A
–6– ADR280 –7– OUTLINE DIMENSIONS 3-Lead Small Outline Transistor Package [SOT -23] (RT -3) Dimensions shown in millimeters 3.04 2.90 2.80 PIN 1 1.40 1.30 1.20 2.64
2.101.90 BSC
1.12 0.89 0.10 0.01 0.50 0.30 0.20 0.08 0.60 0.50 0.40
0.95 BSC
COMPLIANT TO JEDEC STANDARDS TO-236AB Tape and Reel Dimensions (RT -3) Dimensions shown in millimeters 4.10 4.00 3.901.55 1.50 1.50 8.30 8.00 7.70 3.20 3.10 2.90 2.05 2.00 1.95 1.85 1.75 1.65 3.55 3.50 3.45 2.80 2.70 2.60 1.10 1.00 0.90 0.35 0.30 0.25 13.20 13.00 12.80 9.90 8.40 8.40 20.20 MIN
1.50 MIN
7" REEL 100.00 OR 13" REEL 330.00 7" REEL 50.00 MIN OR 13" REEL 100.00 MI N
14.40 MAX
0.75 MIN
1.00 MIN
3-Lead Thin Shrink Small Outline Transistor Package [SC70] (KS-3) Dimensions shown in millimeters 0.40
0.250.10 MAX
1.00 0.80 SEATING PLANE
1.10 MAX
0.18 0.10 0.30 0.10 2 1 PIN 1
0.65 BSC
0.10 COPLANARITY
2.20 1.80 2.40 1.80 1.35 1.15 REV. A REV. A
C03065–0–6/03(A) –8– ADR280
Revision History
6/03—Data Sheet changed from REV . 0 to REV . A. REV. A