ADA4505-1 Analog Devices, ADA4505-1 Datasheet

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ADA4505-1

Manufacturer Part Number
ADA4505-1
Description
10µ
Manufacturer
Analog Devices
Datasheet

Specifications of ADA4505-1

-3db Bandwidth
50kHz
Slew Rate
6mV/µs
Vos
500µV
Ib
0.5pA
# Opamps Per Pkg
1
Input Noise (nv/rthz)
65nV/rtHz
Vcc-vee
1.8V to 5V
Isy Per Amplifier
9µA
Packages
SOT-23

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ADA4505-1ARJZ-R2
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Part Number:
ADA4505-1ARJZ-R7
Manufacturer:
ADI/亚德诺
Quantity:
20 000
FEATURES
PSRR: 100 dB minimum
CMRR: 105 dB typical
Very low supply current: 10 μA per amplifier maximum
1.8 V to 5 V single-supply or ±0.9 V to ±2.5 V dual-supply operation
Rail-to-rail input and output
3 mV offset voltage maximum
Very low input bias current: 0.5 pA typical
APPLICATIONS
Pressure and position sensors
Remote security
Medical monitors
Battery-powered consumer equipment
Hazard detectors
GENERAL DESCRIPTION
The ADA4505-1/ADA4505-2/ADA4505-4 are single, dual, and
quad micropower amplifiers featuring rail-to-rail input and output
swings while operating from a single 1.8 V to 5 V power supply
or from dual ±0.9 V to ±2.5 V power supplies.
Employing a new circuit technology, these low cost amplifiers
offer zero input crossover distortion (excellent PSRR and CMRR
performance) and very low bias current, while operating with a
supply current of less than 10 μA per amplifier.
This combination of features makes the ADA4505-x amplifiers
ideal choices for battery-powered applications because they
minimize errors due to power supply voltage variations over the
lifetime of the battery and maintain high CMRR even for a rail-
to-rail op amp.
Remote battery-powered sensors, handheld instrumentation
and consumer equipment, hazard detectors (for example, smoke,
fire, and gas), and patient monitors can benefit from the features
of the ADA4505-x amplifiers.
The ADA4505-x family is specified for both the industrial
temperature range (−40°C to +85°C) and the extended industrial
temperature range (−40°C to +125°C). The ADA4505-1 single
amplifier is available in a tiny 5-lead SOT-23 and a 6-ball WLCSP.
The ADA4505-2 dual amplifier is available in a standard 8-lead
MSOP and a 8-ball WLCSP. The ADA4505-4 quad amplifier is
available in a 14-lead TSSOP and a 14-ball WLCSP.
The ADA4505-x family is a member of a growing series of zero
crossover op amps offered by Analog Devices, Inc., including
the AD8505/AD8506/AD8508, which also operate from a single
1.8 V to 5 V power supply or from dual ±0.9 V to ±2.5 V power
supplies.
Rev. D
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.
ADA4505-1/ADA4505-2/ADA4505-4
10 μA, Rail-to-Rail I/O, Zero Input
Crossover Distortion Amplifiers
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
OUT A
OUT B
–IN A
+IN A
+IN B
–IN B
OUT
Figure 5. 14-Lead TSSOP (RU-14)
+IN
Figure 3. 6-Ball WLCSP (CB-6-7)
Figure 1. 5-Lead SOT-23 (RJ-5)
V–
V+
1
2
3
1
4
5
6
2
3
7
(BALL SIDE DOWN)
NC = NO CONNECT
ADA4505-4
ADA4505-1
ADA4505-1
(Not to Scale)
(Not to Scale)
BALL A1
INDICATOR
Not to Scale
OUT
TOP VIEW
TOP VIEW
+IN
TOP VIEW
A1
V–
B1
C1
–IN
V+
A2
NC
B2
C2
PIN CONFIGURATIONS
©2008–2010 Analog Devices, Inc. All rights reserved.
14
13
12
11
10
9
8
5
4
OUT D
–IN D
+IN D
V–
+IN C
–IN C
OUT C
V+
–IN
OUT A
–IN A
+IN A
Figure 6. 14-Ball WLCSP (CB-14-1)
Figure 4. 8-Ball WLCSP (CB-8-2)
V–
Figure 2. 8-Lead MSOP (RM-8)
BALL A1
INDICATOR
OUT D
–IN D
+IN C
–IN C
1
2
3
4
A1
B1
D1
E1
OUT B
BALL A1
CORNER
–IN B
+IN B
(BALL SIDE DOWN)
(BALL SIDE DOWN)
A1
B1
C1
ADA4505-2
(Not to Scale)
+IN D
ADA4505-4
ADA4505-2
TOP VIEW
C1
Not to Scale
TOP VIEW
TOP VIEW
OUT A
OUT C
www.analog.com
A2
B2
V+
D2
V–
E2
V+
A2
V–
C2
+IN B
C3
OUT A
–IN A
+IN A
OUT B
A3
B3
C3
–IN B
–IN A
+IN A
A3
B3
D3
E3
8
7
6
5
V+
OUT B
–IN B
+IN B

Related parts for ADA4505-1

ADA4505-1 Summary of contents

Page 1

... The ADA4505-x family is specified for both the industrial temperature range (−40°C to +85°C) and the extended industrial temperature range (−40°C to +125°C). The ADA4505-1 single amplifier is available in a tiny 5-lead SOT-23 and a 6-ball WLCSP. The ADA4505-2 dual amplifier is available in a standard 8-lead MSOP and a 8-ball WLCSP ...

Page 2

... Changes to Thermal Resistance Section and Table 4 ................... 5 Updated Outline Dimensions ....................................................... 18 Changes to Ordering Guide .......................................................... 21 7/09—Rev Rev. C Added 5-Lead SOT-23 (ADA4505-1) ......................... Throughout Changes to Supply Current per Amplifier Parameter, Table 1 ... 3 Changes to Supply Current per Amplifier Parameter, Table 2 ... 4 Changes to Figure 26 and Figure 29 ............................................... 9 Changes to Figure 31 and Figure 34 ...

Page 3

... L GBP MΩ pF Φ MΩ kHz kHz n Rev Page ADA4505-1/ADA4505-2/ADA4505-4 Min Typ Max 0 0 375 0. 130 0 1.8 85 100 115 95 2.5 220 2 ...

Page 4

... Input Capacitance Common Mode OUTPUT CHARACTERISTICS Output Voltage High Output Voltage Low Short-Circuit Limit POWER SUPPLY Power Supply Rejection Ratio Supply Current per Amplifier ADA4505-1 ADA4505-2/ADA4505-4 DYNAMIC PERFORMANCE Slew Rate Gain Bandwidth Product Phase Margin NOISE PERFORMANCE Voltage Noise Voltage Noise Density ...

Page 5

... Package Type −40°C to +125°C 5-Lead SOT-23 (RJ-5) −65°C to +150°C 6-Ball WLCSP (CB-6-7) 300°C 8-Lead MSOP (RM-8) 8-Ball WLCSP (CB-8-2) 14-Lead TSSOP (RU-14) 14-Ball WLCSP (CB-14-1) ESD CAUTION Rev Page ADA4505-1/ADA4505-2/ADA4505-4 θ θ JA 190 92 105 2.6 142 45 82 N/A 112 ...

Page 6

... ADA4505-1/ADA4505-2/ADA4505-4 TYPICAL PERFORMANCE CHARACTERISTICS T = 25°C, unless otherwise noted. A 140 120 100 –3.0 –2.5 –2.0 –1.5 –1.0 –0.5 0 0.5 V (mV) OS Figure 7. Input Offset Voltage Distribution 0.5 1.0 1.5 2.0 2.5 3.0 3.5 TCV (µV/°C) OS Figure 8. Input Offset Voltage Drift Distribution ...

Page 7

... SY I AND I B+ B– 1.2 1.4 1.6 1.8 Figure 17. Input Bias Current vs. Common-Mode Voltage and Temperature –40°C +25°C +85°C +125°C 10 100 Rev Page ADA4505-1/ADA4505-2/ADA4505 100 TEMPERATURE (°C) Figure 16. Input Bias Current vs. Temperature 1000 125°C 100 105° ...

Page 8

... ADA4505-1/ADA4505-2/ADA4505 25°C, unless otherwise noted. A 10k 100 10 1 0.1 0.01 0.001 0.01 0.1 1 LOAD CURRENT (mA) Figure 19. Output Voltage ( Supply Rail vs. Load Current OL and Temperature 1.800 R = 100kΩ L 1.795 1.790 1.785 R = 10kΩ L 1.780 V = 1.8V SY 1.775 –40 –25 – TEMPERATURE (° ...

Page 9

... V = 1.8V SY 100k –10 100k 1M Rev Page ADA4505-1/ADA4505-2/ADA4505-4 PHASE GAIN 0 100 1k 10k 100k FREQUENCY (Hz) Figure 28. Open-Loop Gain and Phase vs. Frequency –100 – –1 0 –10 – ...

Page 10

... ADA4505-1/ADA4505-2/ADA4505 25°C, unless otherwise noted. A 120 100 100 1k 10k FREQUENCY (Hz) Figure 31. CMRR vs. Frequency 120 100 PSRR+ PSRR– 100 1k 10k FREQUENCY (Hz) Figure 32. PSRR vs. Frequency 140 130 120 110 100 90 80 –40 –25 –10 ...

Page 11

... TIME (200µs/DIV) Figure 38. Large Signal Transient Response T LOAD = 100kΩ || 100pF V SY TIME (200µs/DIV) Figure 39. Small Signal Transient Response OS+ OS– 1000 = 1.8V = 1.8V Rev Page ADA4505-1/ADA4505-2/ADA4505 10mV p 100kΩ ...

Page 12

... Rev Page ADA4505- 1. ADA4505- ADA4505- ADA4505-2, V ADA4505- 1. ADA4505- –40 –25 – TEMPERATURE (°C) Figure 46. Total Supply Current vs. Temperature 2.95µV p-p TIME (s) Figure 47. Input Voltage Noise, 0 Noise ...

Page 13

... TIME (400µs/DIV) Figure 50. No Phase Reversal 100kΩ L 10k 100k OUT Rev Page ADA4505-1/ADA4505-2/ADA4505 100 1k 10k FREQUENCY (Hz) Figure 51. Output Swing vs. Frequency 100kΩ LOAD ...

Page 14

... ADA4505-1/ADA4505-2/ADA4505-4 THEORY OF OPERATION The ADA4505-1/ADA4505-2/ADA4505-4 are unity-gain stable CMOS rail-to-rail input/output operational amplifiers designed to optimize performance in current consumption, PSRR, CMRR, and zero crossover distortion, all embedded in a small package. The typical offset voltage is 500 μV, with a low peak-to-peak voltage noise of 2.95 μ ...

Page 15

... The ADA4505-x family CMRR minimum causes only a 79 μV error. As with the PSRR error, there are complex ways to minimize this error, but the ADA4505-x family solves this problem without incurring unnecessary circuitry complexity or increased cost. Rev Page ADA4505-1/ADA4505-2/ADA4505-4 300 250 T = 25° ...

Page 16

... ADA4505-1/ADA4505-2/ADA4505-4 APPLICATIONS INFORMATION PULSE OXIMETER CURRENT SOURCE A pulse oximeter is a noninvasive medical device used for continuously measuring the percentage of hemoglobin (Hb) saturated with oxygen and the pulse rate of a patient. Hemo- globin that is carrying oxygen (oxyhemoglobin) absorbs light in the infrared (IR) region of the spectrum; hemoglobin that is not carrying oxygen (deoxyhemoglobin) absorbs visible red (R) light ...

Page 17

... C1 R1 5MΩ +3.3V +3. 22.6kΩ 22.6kΩ V– 0.047µ 1/2 V– ADA4505 0.1µF Rev Page ADA4505-1/ADA4505-2/ADA4505-4 U1 1/2 ADA4505-2 +3. ADA4505-2 22.6kΩ 22.6kΩ 0.047µF V– 0.1µ OUT ...

Page 18

... ADA4505-1/ADA4505-2/ADA4505-4 OUTLINE DIMENSIONS 1.70 1.60 1.50 1.30 1.15 0.90 0.15 MAX 0.05 MIN 0.945 0.905 0.865 BALL A1 IDENTIFIER TOP VIEW (BALL SIDE DOWN) 3.00 2.90 2. 3.00 2.80 2. 0.95 BSC 1.90 BSC 0.20 MAX 1.45 MAX 0.08 MIN 0.95 MIN SEATING 0.50 MAX PLANE 0.35 MIN COMPLIANT TO JEDEC STANDARDS MO-178-AA Figure 59. 5-Lead Small Outline Transistor Package [SOT-23] (RJ-5) Dimensions shown in millimeters ...

Page 19

... PIN 1 IDENTIFIER 0.65 BSC 0.95 0.85 0.75 0.15 0.40 0.05 0.25 COPLANARITY 0.10 COMPLIANT TO JEDEC STANDARDS MO-187-AA Figure 62. 8-Lead Mini Small Outline Package [MSOP] Dimensions shown in millimeters Rev Page ADA4505-1/ADA4505-2/ADA4505-4 0.650 0.595 0.540 SEATING 3 2 PLANE 0.340 0.320 0.300 0.50 BALL PITCH BOTTOM VIEW (BALL SIDE UP) 0.270 0.240 ...

Page 20

... ADA4505-1/ADA4505-2/ADA4505-4 4.50 4.40 4.30 PIN 1 1.05 1.00 0.80 0.15 0.05 COPLANARITY 0.10 1.50 1.46 1.42 BALL 1 IDENTIFIER TOP VIEW (BALL SIDE DOWN) 5.10 5.00 4. 6.40 BSC 1 7 0.65 BSC 1.20 0.20 MAX 0.09 SEATING 0.30 PLANE 0.19 COMPLIANT TO JEDEC STANDARDS MO-153-AB-1 Figure 63. 14-Lead Thin Shrink Small Outline Package [TSSOP] (RU-14) Dimensions shown in millimeters 0.650 0.595 0.540 SEATING PLANE 3.00 2.96 0.340 2.92 0.320 ...

Page 21

... ADA4505-1ARJZ-R2 −40°C to +125°C ADA4505-1ARJZ-RL −40°C to +125°C ADA4505-1ARJZ-R7 −40°C to +125°C ADA4505-1ACBZ-R7 −40°C to +125°C ADA4505-1ACBZ-RL −40°C to +125°C ADA4505-2ACBZ-RL −40°C to +125°C ADA4505-2ACBZ-R7 −40°C to +125°C ADA4505-2ARMZ −40°C to +125°C ADA4505-2ARMZ-RL − ...

Page 22

... ADA4505-1/ADA4505-2/ADA4505-4 NOTES Rev Page ...

Page 23

... NOTES ADA4505-1/ADA4505-2/ADA4505-4 Rev Page ...

Page 24

... ADA4505-1/ADA4505-2/ADA4505-4 NOTES ©2008–2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D07416-0-7/10(D) Rev Page ...

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