ADR821

ADR821/ADR827 Low Power, Precision Reference and Op Amp Data Sheet (Rev. 0)

Document overview

• Manufacturer or author: Analog Devices, Inc.
• PDF pages: 20

Technical content

Low Power, Precision Reference and Op Amp ADR821/ADR827 Rev. 0 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. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2007 Analog Devices, Inc. All rights reserved.

FEATURES

400 μA supply current −40°C to +125°C temperature range On-board precision resistors Reference ADR821: 2.8 V to 15 V operation ADR827: 2.7 V to 15 V operation ±0.2% initial accuracy 15 ppm/°C temperature drift maximum +5 mA/−3 mA output drive Amplifier ADR821 ±2.8 V to ±15 V operation

2.8 V to 15 V single-supply operation

±2.7 V to ±15 V operation

2.7 V to 15 V single-supply operation

Rail-to-rail input and output 500 μV offset voltage maximum 50 nA bias current maximum Unity gain stable No phase reversal

APPLICATIONS

Battery-powered instrumentation Portable medical instrumentation Data acquisition systems Industrial process controls Automotive applications FUNCTIONAL BLOCK DIAGRAM GND NC AMP_OUT +IN –IN NC = NO CONNECT 06665-001 REF R1 R2 REF_OUT ADR821/ADR827 Figure 1. Table 1. Selection Table and an op amp in a 10-lead mini small outline package (MSOP). ing precision and low power. initial accuracy. All versions operate from −40°C to +125°C.

Rev. 0 | Page 2 of 20 TABLE OF CONTENTS

REVISION HISTORY

10/07—Revision 0: Initial Version

Rev. 0 | Page 3 of 20 SPECIFICATIONS ADR821 ELECTRICAL CHARACTERISTICS—REFERENCE VIN = 2.8 V to 15 V , TA = 25°C, CIN = COUT = 0.1 μF, unless otherwise noted. Table 2. Parameter Symbol Conditions Min Typ Max Unit OUTPUT VOLTAGE V OUT A Grade 2.490 2.500 2.510 V B Grade 2.495 2.500 2.505 V INITIAL ACCURACY V OERR A Grade 10 mV 0.40 % B Grade 5.00 mV 0.20 % TEMPERATURE COEFFICIENT TCV OUT −40°C < T A < +125°C A Grade 30 ppm/°C B Grade 15 ppm/°C DROPOUT (VOUT – VIN) V DO I OUT = 0 mA 0.3 V LINE REGULATION ∆V OUT/∆VIN V IN = 2.8 V to 15 V, −40°C < TA < +125°C 20 50 ppm/V LOAD REGULATION ∆V OUT/∆ILOAD ILOAD = 0 mA to 5 mA, −40°C < TA < +125°C, VIN = 5 V 400 ppm/mA I LOAD = 0 mA to 5 mA, VIN = 5 V 80 200 ppm/mA ILOAD = −3 mA to 0 mA, −40°C < TA < +125°C, VIN = 5 V 600 ppm/mA I LOAD = −3 mA to +5 mA, VIN = 5 V 80 300 ppm/mA VOLTAGE NOISE e N p-p 0.1 Hz to 10 Hz 16 μV p-p BROADBAND NOISE 10 Hz to 10 kHz 430 μV p-p TURN-ON SETTLING TIME t R C IN = 0 μF 80 μs POWER SUPPLY Positive Supply Current I SY+ No load, −40°C < T A < +125°C 400 μA Negative Supply Current I SY− No load, −40°C < T A < +125°C 300 μA ON-BOARD RESISTORS R 1, R2 Resistor Tolerance 8 10 12 kΩ Resistor Matching 0.5 % Resistor Temperature Coefficient TC ±100 ppm/°C

Rev. 0 | Page 4 of 20 ADR821 ELECTRICAL CHARACTERISTICS—AMPLIFIER (VS = ±2.8 V) VCM = 0 V , TA = 25°C, unless otherwise noted. Table 3. Parameter Symbol Conditions Min Typ Max Unit INPUT CHARACTERISTICS Input Offset Voltage V OS −40°C < T A < +125°C 100 500 μV Input Offset Voltage Drift TCV OS −40°C < T A < +125°C 2 5 μV/°C Input Bias Current I B −40°C < T A < +125°C 15 50 nA Input Offset Bias Current I OS −40°C < T A < +125°C 5 25 nA Large Signal Voltage Gain A VO V OUT = −1.5 V to +1.5 V R LOAD = 10 kΩ, −40°C < TA < +125°C 99 108 dB R LOAD = 2 kΩ, −40°C < TA < +125°C 94 100 dB Common-Mode Rejection Ratio CMRR V CM = −1.5 V to +1.5 V, −40°C < TA < +125°C 75 100 dB 85 dB OUTPUT CHARACTERISTICS Output Voltage High V OH I LOAD = 1 mA 2.6 2.7 V I LOAD = 1 mA, −40°C < TA < +125°C 2.55 V Output Voltage Low V OL I LOAD = 1 mA −2.7 −2.6 V I LOAD = 1 mA, −40°C < TA < +125°C −2.55 V POWER SUPPLY Positive Supply Current I SY+ No load, −40°C < T A < +125°C 400 μA Negative Supply Current I SY− No load, −40°C < T A < +125°C 300 μA Power Supply Rejection Ratio PSRR V S = ±2.8 V to ±15 V 75 100 dB DYNAMIC PERFORMANCE Slew Rate SR R LOAD = 10 kΩ, CLOAD = 10 pF, AV = +1 0.5 V/μs Gain Bandwidth Product GBP C LOAD = 14 pF 1.0 MHz Phase Margin φ M C LOAD = 14 pF 72.5 Degrees NOISE PERFORMANCE Voltage Noise e N p-p f = 0.1 Hz to 10 Hz 0.2 μV p-p Voltage Noise Density e N f = 1 kHz 16 nV/√Hz

Rev. 0 | Page 5 of 20 ADR821 ELECTRICAL CHARACTERISTICS—AMPLIFIER (VS = ±15 V) VCM= 0 V , TA = 25°C, unless otherwise noted. Table 4.A Parameter Symbol Conditions Min Typ Max Unit INPUT CHARACTERISTICS Input Offset Voltage V OS −40°C < T A < +125°C 100 500 μV Input Offset Voltage Drift TCV OS −40°C < T A < +125°C 2 5 μV/ oC Input Bias Current I B −40°C < T A < +125°C 10 50 nA Input Offset Bias Current I OS −40°C < T A < +125°C 5 25 nA Large Signal Voltage Gain A VO V OUT = −14 V to +14 V R LOAD = 10 kΩ, −40°C < TA < +125°C 109.5 118 dB R LOAD = 2 kΩ, −40°C < TA < +125°C 100 111 dB Common-Mode Rejection Ratio CMRR V CM = −14 V to +14 V, −40°C < TA < +125°C 75 100 dB 85 dB OUTPUT CHARACTERISTICS Output Voltage high V OH I LOAD = 1 mA 14.8 14.9 V I LOAD = 1 mA, −40°C < TA < +125°C 14.75 V Output Voltage Low V OL I LOAD = 1 mA −14.9 −14.8 V I LOAD = 1 mA, −40°C < TA < +125°C −14.75 V Output Current I SC Short-circuit current ±20 mA POWER SUPPLY Positive Supply Current I SY+ No load, −40°C < T A < +125°C 400 μA Negative Supply Current I SY− No load, −40°C < T A < +125°C 300 μA Power Supply Rejection Ratio PSRR V S = ±2.8 V to ±15 V 75 100 dB DYNAMIC PERFORMANCE Slew Rate SR R LOAD = 10 kΩ, CLOAD = 10 pF, AV = +1 0.5 V/μs Gain Bandwidth Product GBP C LOAD = 14 pF 1.0 MHz Phase Margin φ M C LOAD = 14 pF 75.4 Degrees NOISE PERFORMANCE Voltage Noise e N p-p f = 0.1 Hz to 10 Hz 0.2 μV p-p Voltage Noise Density e N f = 1 kHz 16 nV/√Hz

Rev. 0 | Page 6 of 20 ADR827 ELECTRICAL CHARACTERISTICS—REFERENCE VIN = 2.7 V to 15 V , TA = 25°C, CIN = COUT = 0.1 μF, unless otherwise noted. Table 5. Parameter Symbol Conditions Min Typ Max Unit OUTPUT VOLTAGE V OUT A Grade 1.245 1.250 1.255 V B Grade 1.2475 1.250 1.2525 V INITIAL ACCURACY V OERR A Grade 5 mV 0.40 % B Grade 2.50 mV 0.20 % TEMPERATURE COEFFICIENT TCV OUT −40°C < T A < +125°C A Grade 30 ppm/°C B Grade 15 ppm/°C DROPOUT (VOUT – VIN) V DO IOUT = 0 mA 1.45 V LINE REGULATION ∆V OUT/∆VIN V IN = 2.7 V to 15 V, −40°C < TA < +125°C 20 50 ppm/V LOAD REGULATION ∆V OUT/∆ILOAD ILOAD = 0 mA to 5 mA, −40°C < TA < +125°C, VIN = 3 V 400 ppm/mA I LOAD = 0 mA to 5 mA, VIN = 3 V 80 200 ppm/mA ILOAD = −3 mA to 0 mA, −40°C < TA < +125°C, VIN = 3 V 600 ppm/mA I LOAD = −3 mA to +5 mA, VIN = 3 V 80 300 ppm/mA VOLTAGE NOISE e N p-p 0.1 Hz to 10 Hz 8 μV p-p BROADBAND NOISE 10 Hz to 10 kHz 260 μV p-p TURN-ON SETTLING TIME t R C IN = 0 μF, COUT = 0.1 μF 80 μs POWER SUPPLY Positive Supply Current I SY+ No load, −40°C < T A < +125°C 400 μA Negative Supply Current I SY− No load, −40°C < T A < +125°C 300 μA ON-BOARD RESISTORS R 1, R2 Resistor Tolerance 8 10 12 kΩ Resistor Matching 0.5 % Resistor Temperature Coefficient TC ±100 ppm/°C

Rev. 0 | Page 7 of 20 ADR827 ELECTRICAL CHARACTERISTICS—AMPLIFIER (VS = ±2.7 V) VCM = 0 V , TA = 25°C, unless otherwise noted. Table 6. Parameter Symbol Conditions Min Typ Max Unit INPUT CHARACTERISTICS Input Offset Voltage V OS −40°C < T A < +125°C 100 500 μV Input Offset Voltage Drift TCV OS −40°C < T A < +125°C 2 5 μV/°C Input Bias Current I B −40°C < T A < +125°C 15 50 nA Input Offset Bias Current I OS −40°C < T A < +125°C 5 25 nA Large Signal Voltage Gain A VO V OUT = −1.5 V to +1.5 V R LOAD = 10 kΩ, −40°C < TA < +125°C 99 108 dB R LOAD = 2 kΩ, −40°C < TA < +125°C 94 100 dB Common-Mode Rejection Ratio CMRR V CM = −1.5 V to +1.5 V, −40°C < TA < +125°C 75 100 dB 85 dB OUTPUT CHARACTERISTICS Output Voltage High V OH I LOAD = 1 mA 2.5 2.6 V I LOAD = 1 mA, −40°C < TA < +125°C 2.45 V Output Voltage Low V OL I LOAD = 1 mA −2.6 −2.5 V I LOAD = 1 mA, −40°C < TA < +125°C −2.45 V POWER SUPPLY Positive Supply Current I SY+ No load, −40°C < T A < +125°C 400 μA Negative Supply Current I SY− No load, −40°C < T A < +125°C 300 μA Power Supply Rejection Ratio PSRR V S = ±2.7 V to ±15 V 75 100 dB DYNAMIC PERFORMANCE Slew Rate SR R LOAD = 10 kΩ, CLOAD = 10 pF, AV = +1 0.5 V/μs Gain Bandwidth Product GBP C LOAD = 14 pF 1.0 MHz Phase Margin φ M C LOAD = 14 pF 71.3 Degrees NOISE PERFORMANCE Voltage Noise e N p-p f = 0.1 Hz to 10 Hz 0.2 μV p-p Voltage Noise Density e N f = 1 kHz 16 nV/√Hz

Rev. 0 | Page 8 of 20 ADR827 ELECTRICAL CHARACTERISTICS—AMPLIFIER (VS = ±15 V) VCM = 0 V , TA = 25°C, unless otherwise noted. Table 7. Parameter Symbol Conditions Min Typ Max Unit INPUT CHARACTERISTICS Input Offset Voltage V OS −40°C < T A < +125°C 100 500 μV Input Offset Voltage Drift TCV OS −40°C < T A < +125°C 2 5 μV/°C Input Bias Current I B −40°C < T A < +125°C 10 50 nA Input Offset Bias Current I OS −40°C < T A < +125°C 5 25 nA Large Signal Voltage Gain A VO V OUT = −14 V to +14 V R LOAD = 10 kΩ, −40°C < TA < +125°C 109.5 118 dB R LOAD = 2 kΩ, −40°C < TA < +125°C 100 111 dB Common-Mode Rejection Ratio CMRR V CM = −14 V to +14 V, −40°C < TA < 125°C 75 100 dB 85 dB OUTPUT CHARACTERISTICS Output Voltage High V OH I LOAD = 1 mA 14.8 14.9 V I LOAD = 1 mA, −40°C < TA < +125°C 14.75 V Output Voltage Low V OL I LOAD = 1 mA −14.9 −14.8 V I LOAD = 1 mA, −40°C < TA < +125°C −14.75 V Output Current I SC Short-circuit current ±20 mA POWER SUPPLY Positive Supply Current I SY+ No load, −40°C < T A < +125°C 400 μA Negative Supply Current I SY− No load, −40°C < T A < +125°C 300 μA Power Supply Rejection Ratio PSRR V S = ±2.7 V to ±15 V 75 100 dB DYNAMIC PERFORMANCE Slew Rate SR R LOAD = 10 kΩ, CLOAD = 10 pF, AV = +1 0.5 V/μs Gain Bandwidth Product GBP C LOAD = 14 pF 1.0 MHz Phase Margin φ M C LOAD = 14 pF 75.4 Degrees NOISE PERFORMANCE Voltage Noise e N p-p f = 0.1 Hz to 10 Hz 0.2 μV p-p Voltage Noise Density e N f = 1 kHz 16 nV/√Hz

TA= 25°C, unless otherwise noted. Table 9. Thermal Resistance

Figure 2. Pin Configuration Table 10. Pin Function Descriptions

1 V+ Input Voltage of the Reference/Positive Supply of the Amplifier

2 R 1 Resistance Tied to Positive Input of the Amplifier

3 GND Ground

4 NC Do Not Connect Any Extern al Components to This Pin

5 V− Negative Supply of the Amplifier

6 REF_OUT Output Voltage of the Reference

9 R 2 Resistance Tied to Positive Input of the Amplifier

10 AMP_OUT Output Pin of the Amplifier

Rev. 0 | Page 19 of 20 OUTLINE DIMENSIONS COMPLIANT TO JEDEC STANDARDS MO-187-BA 0.23 0.08 0.80 0.60 0.40 0.15 0.05 0.33 0.17 0.95 0.85 0.75 SEATING PLANE

1.10 MAX

0.50 BSC

0.10 3.10 3.00 2.90 3.10 3.00 2.90 5.15 4.90 4.65 Figure 41. 10-Lead Mini Small Outline Package [MSOP]

Description

ADR821ARMZ-REEL71 −40°C to +125°C 2.500 10.00 ±0.40 30 10-Lead MSOP RM-10 1,000 R2G ADR821ARMZ-R21 −40°C to +125°C 2.500 10.00 ±0.40 30 10-Lead MSOP RM-10 250 R2G ADR821BRMZ-REEL71 −40°C to +125°C 2.500 5.00 ±0.20 15 10-Lead MSOP RM-10 1,000 R2H ADR821BRMZ-R21 −40°C to +125°C 2.500 5.00 ±0.20 15 10-Lead MSOP RM-10 250 R2H ADR827ARMZ-REEL71 −40°C to +125°C 1.250 5.00 ±0.40 30 10-Lead MSOP RM-10 1,000 R0Z ADR827ARMZ-R21 −40°C to +125°C 1.250 5.00 ±0.40 30 10-Lead MSOP RM-10 250 R0Z ADR827BRMZ-REEL71 −40°C to +125°C 1.250 2.50 ±0.20 15 10-Lead MSOP RM-10 1,000 R2B ADR827BRMZ-R21 −40°C to +125°C 1.250 2.50 ±0.20 15 10-Lead MSOP RM-10 250 R2B 1 Z = RoHS Compliant Part.

Rev. 0 | Page 20 of 20 NOTES ©2007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the prop erty of their respective owners. D06665-0-10/07(0)