OP1177

AD8622_V01 AD | Alldatasheet

Document overview

• Manufacturer or author: Provided By alldatasheet.com(free datasheet download site)
• PDF pages: 20

Technical content

Rev. D | Page 2 of 20 TABLE OF CONTENTS

REVISION HISTORY

12/13—Rev. C to Rev. D 6/11—Rev. B to Rev. C 2/10—Rev. A to Rev. B 1/10—Rev. 0 to Rev. A 7/09—Revision 0: Initial Version

Rev. D | Page 3 of 20 SPECIFICATIONS ELECTRICAL CHARACTERISTICS—±2.5 V OPERATION VSY = ±2.5 V, VCM = 0 V, TA = 25°C, unless otherwise specified. Table 2. Parameter Symbol Conditions Min Typ Max Unit INPUT CHARACTERISTICS Offset Voltage VOS 10 125 μV −40°C ≤ TA ≤ +125°C 230 μV Offset Voltage Drift ΔVOS/ΔT −40°C ≤ TA ≤ +125°C 0.5 1.2 µV/°C Input Bias Current IB 30 200 pA −40°C ≤ TA ≤ +125°C 400 pA Input Offset Current IOS 25 200 pA −40°C ≤ TA ≤ +125°C 300 pA Input Voltage Range −40°C ≤ TA ≤ +125°C −1.3 +1.3 V Common-Mode Rejection Ratio CMRR VCM = −1.3 V to +1.3 V 110 120 dB −40°C ≤ TA ≤ +125°C 107 dB Open-Loop Gain AVO RL = 10 kΩ, VO = −2.0 V to +2.0 V 118 135 dB −40°C ≤ TA ≤ +125°C 109 dB Input Resistance, Differential Mode RINDM 1 GΩ Input Resistance, Common Mode RINCM 1 TΩ Input Capacitance, Differential Mode CINDM 5.5 pF Input Capacitance, Common Mode CINCM 3 pF OUTPUT CHARACTERISTICS Output Voltage High VOH RL = 100 kΩ to ground 2.45 2.49 V RL = 10 kΩ to ground 2.40 2.45 V Output Voltage Low VOL RL = 100 kΩ to ground −2.49 −2.45 V RL = 10 kΩ to ground −2.45 −2.40 V Short-Circuit Current ISC ±30 mA Closed-Loop Output Impedance ZOUT f = 1 kHz, AV = 1 2 Ω POWER SUPPLY Power Supply Rejection Ratio PSRR VS = ±2.0 V to ±18.0 V 125 145 dB −40°C ≤ TA ≤ +125°C 120 dB Supply Current/Amplifier ISY IO = 0 mA 175 225 μA −40°C ≤ TA ≤ +125°C 310 μA DYNAMIC PERFORMANCE Slew Rate SR RL = 10 kΩ, CL = 100 pF AV = 1 0.28 V/μs Gain Bandwidth Product GBP RL = 10 kΩ, CL = 20 pF, AV = 1 540 kHz Phase Margin ΦM RL = 10 kΩ, CL = 20 pF, AV = 1 74 Degrees NOISE PERFORMANCE Voltage Noise en p-p f = 0.1 Hz to 10 Hz 0.2 μV p-p Voltage Noise Density en f = 1 kHz 12 nV/√Hz Uncorrelated Current Noise Density in_uncorr f = 1 kHz 0.15 pA/√Hz Correlated Current Noise Density in_corr f = 1 kHz 0.07 pA/√Hz

Rev. D | Page 4 of 20 ELECTRICAL CHARACTERISTICS—±15 V OPERATION VSY = ±15 V, VCM = 0 V, TA = 25°C, unless otherwise specified. Table 3. Parameter Symbol Conditions Min Typ Max Unit INPUT CHARACTERISTICS Offset Voltage VOS 10 125 μV −40°C ≤ TA ≤ +125°C 230 μV Offset Voltage Drift ΔVOS/ΔT −40°C ≤ TA ≤ +125°C 0.5 1.2 μV/°C Input Bias Current IB 45 200 pA −40°C ≤ TA ≤ +125°C 500 pA Input Offset Current IOS 35 200 pA −40°C ≤ TA ≤ +125°C 500 pA Input Voltage Range −13.8 +13.8 V Common-Mode Rejection Ratio CMRR VCM = −13.8 V to +13.8 V 125 135 dB −40°C ≤ TA ≤ +125°C 112 dB Open-Loop Gain AVO RL = 10 kΩ, VO = −13.5 V to +13.5 V 125 137 dB −40°C ≤ TA ≤ +125°C 120 dB Input Resistance, Differential Mode RINDM 1 GΩ Input Resistance, Common Mode RINCM 1 TΩ Input Capacitance, Differential Mode CINDM 5.5 pF Input Capacitance, Common Mode CINCM 3 pF OUTPUT CHARACTERISTICS Output Voltage High VOH RL = 100 kΩ to ground 14.94 14.97 V RL = 10 kΩ to ground 14.86 14.89 V Output Voltage Low VOL RL = 100 kΩ to ground −14.97 −14.94 V RL = 10 kΩ to ground −14.89 −14.90 V Short-Circuit Current ISC ±40 mA Closed-Loop Output Impedance ZOUT f = 1 kHz, AV = 1 1.5 Ω POWER SUPPLY Power Supply Rejection Ratio PSRR VS = ±2.0 V to ±18.0 V 125 145 dB −40°C ≤ TA ≤ +125°C 120 dB Supply Current/Amplifier ISY IO = 0 mA 215 250 μA −40°C ≤ TA ≤ +125°C 350 μA DYNAMIC PERFORMANCE Slew Rate SR RL = 10 kΩ, CL = 100 pF, AV = 1 0.48 V/μs Gain Bandwidth Product GBP RL = 10 kΩ, CL = 20 pF, AV = 1 560 kHz Phase Margin ΦM RL = 10 kΩ, CL = 20 pF, AV = 1 75 Degrees NOISE PERFORMANCE Voltage Noise en p-p f = 0.1 Hz to 10 Hz 0.2 μV p-p Voltage Noise Density en f = 1 kHz 11 nV/√Hz Uncorrelated Current Noise Density in_uncorr f = 1 kHz 0.15 pA/√Hz Correlated Current Noise Density in_corr f = 1 kHz 0.06 pA/√Hz

the power supply rail by 0.5 V. 2 Differential input voltage is limited to 10 V or the supply voltage, whichever is less. was measured using a standard 4-layer board. Table 3. Thermal Resistance

The ADR121 is a precision micropower 2.5 V voltage reference. resulting in 21× improvement in sensitivity/power.

1. USE MATCHED RESISTORS FOR IN-AMP.
2. FOR INFORMATION ON C1, C2, AND C3, REFER TO ADR121 DATA SHEET.

Figure 57. Hall Sensor Signal Conditioning

Figure 58. Simplified Schematic

0.65 BSC

1.10 MAX

Figure 59. 8-Lead Mini Small Outline Package [MSOP] REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN. Figure 60. 8-Lead Standard Small Outline Package [SOIC_N]

COMPLIANT TOJEDEC STANDARDS MO-220-WGGC.

0.02 NOM

0.20 REF

0.20 MIN

Figure 61. 16-Lead Lead Frame Chip Scale Package [LFCSP_WQ] Figure 62. 14-Lead Thin Shrink Small Outline Package [TSSOP]

Rev. D | Page 20 of 20 NOTES ©2009–2013 Analog Devices, Inc. All rights reserved. Trademarks and registered tra demarks are the property of their respective owners. D07527-0-12/13(D)