ALD1704 ALD [Advanced Linear Devices], ALD1704 Datasheet

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ALD1704

Manufacturer Part Number
ALD1704
Description
RAIL-TO-RAIL CMOS OPERATIONAL AMPLIFIER
Manufacturer
ALD [Advanced Linear Devices]
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ALD1704
Manufacturer:
ALD
Quantity:
20 000
Part Number:
ALD1704APA
Manufacturer:
ALD
Quantity:
20 000
Part Number:
ALD1704SA
Quantity:
5 400
ORDERING INFORMATION (“L” suffix denotes lead-free (RoHS))
* Contact factory for leaded (non-RoHS) or extended high/low temperature versions.
GENERAL DESCRIPTION
The ALD1704A/ALD1704B/ALD1704/ALD1704G is a CMOS monolithic
operational amplifier with MOSFET input that has rail-to-rail input and
output voltage ranges. The input voltage range and output voltage range
are very close to the positive and negative power supply voltages.
Typically the input voltage can be beyond positive power supply voltage
V
voltage swings to within 60mV of either positive or negative power supply
voltages at rated load.
This device is designed as an alternative to the popular JFET input
operational amplifiers in applications where lower operating voltages,
such as 9V battery or ±3.25V to ±5V power supplies are being used. It
offers high slew rate of 5V/µs at low operating power of 30mW. Since the
ALD1704A/ALD1704B/ALD1704/ALD1704G is designed and manufac-
tured with Advanced Linear Devices' standard enhanced ACMOS silicon
gate CMOS process, it also offers low unit cost and exceptional reliability.
The rail-to-rail input and output feature of the ALD1704A/ALD1704B/
ALD1704/ALD1704G allows a lower operating supply voltage for a given
signal voltage range and allows numerous analog serial stages to be
implemented without losing operating voltage margin. The output stage
is designed to drive up to 10mA into 400pF capacitive and 1.5KΩ resistive
loads at unity gain and up to 4000 pF at a gain of 5. Short circuit protection
to either ground or the power supply rails is at approximately 15mA clamp
current. Due to complementary output stage design, the output can both
source and sink 10mA into a load with symmetrical drive and is ideally
suited for applications where push-pull voltage drive is desired.
The offset voltage is trimmed on-chip to eliminate the need for external
nulling in many applications. For precision applications, the output is
designed to settle to 0.1% in 2µs. For large signal buffer applications, the
operational amplifier can function as an ultra high input impedance
voltage follower/buffer that allows input and output voltage swings from
positive to negative supply voltages. This feature is intended to greatly
simplify systems design and eliminate higher voltage power supplies in
many applications. Additionally, robust design and rigorous screening
make this device especially suitable for operation in temperature-ex-
treme environments and rugged conditions.
Rev 2.1 ©2010 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, CA 94089-1706 Tel: (408) 747-1155 Fax: (408) 747-1286
+
, or the negative power supply voltage V- by up to 300mV. The output
0°C to +70°C
8-Pin
Small Outline
Package (SOIC)
ALD1704ASAL
ALD1704BSAL
ALD1704SAL
ALD1704GSAL
A
L
D
INEAR
DVANCED
EVICES,
Operating Temperature Range
I
NC.
0°C to +70°C
8-Pin
Plastic Dip
Package
ALD1704APAL
ALD1704BPAL
ALD1704PAL
ALD1704GPAL
RAIL-TO-RAIL CMOS OPERATIONAL AMPLIFIER
-55°C to 125°C
8-Pin
CERDIP
Package
ALD1704ADA
ALD17041BDA
ALD1704DA
ALD1704GDA
www.aldinc.com
FEATURES
• Rail-to-rail input and output voltage ranges
• 5.0V/µs slew rate
• Output settles to 2mV of supply rails
• High capacitive load capability -- up to 4000pF
• Symmetrical push-pull output drives
• No frequency compensation required --
• Extremely low input bias currents -- 1.0pA
• Ideal for high source impedance applications
• High voltage gain -- typically 150V/mV
• Output short circuit protected
• Unity gain bandwidth of 2.1MHz
• Suitable for rugged, temperature-extreme
APPLICATIONS
• Voltage amplifier
• Voltage follower/buffer
• Charge integrator
• Photodiode amplifier
• Data acquisition systems
• High performance portable
• Signal conditioning circuits
• Low leakage amplifiers
• Active filters
• Sample/Hold amplifier
• Picoammeter
• Current to voltage converter
• Coaxial cable driver
• Capacitive sensor amplifier
• Piezoelectric transducer amplifier
PIN CONFIGURATION
unity gain stable
typical (20pAMax)
environments
instruments
N/C
+IN
* N/C pins are internally connected. Do not connect externally.
-IN
V -
2
3
4
1
SAL, PAL, DA PACKAGES
2
ALD1704A/ALD1704B
TOP VIEW
ALD1704/ALD1704G
8
7
6
5
N/C
N/C
V +
OUT

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ALD1704 Summary of contents

Page 1

... CMOS process, it also offers low unit cost and exceptional reliability. The rail-to-rail input and output feature of the ALD1704A/ALD1704B/ ALD1704/ALD1704G allows a lower operating supply voltage for a given signal voltage range and allows numerous analog serial stages to be implemented without losing operating voltage margin. The output stage is designed to drive up to 10mA into 400pF capacitive and 1.5KΩ ...

Page 2

... Supply Current I 3.0 S Power Dissipation Input Capacitance Bandwidth B 2.1 W Slew Rate S 5.0 R Rise time t 0.1 r Overshoot 15 Factor ALD1704A/ALD1704B ALD1704/ALD1704G SAL, PAL packages DA package 1704B 1704 Max Min Typ Max Min Typ ±5.0 ±3.25 ±5.0 ±3.25 10.0 6.5 10.0 6.5 0.9 2.0 1.7 2.8 15 1.0 15 240 240 20 1.0 20 ...

Page 3

... Input Bias Current I B Power Supply PSRR Rejection Ratio Common Mode CMRR Rejection Ratio Large Signal A V Voltage Gain Output Voltage V low O Range V high O ALD1704A/ALD1704B ALD1704/ALD1704G 1704B 1704 Max Min Typ Max Min 400 4000 4000 26 0.6 5.0 2.0 1704ADA 1704BDA Min Typ Max Min Typ Max 2 ...

Page 4

... To maintain compatibility with other operational amplifiers, this switching point has been selected to be about 1.5V above the negative supply voltage. Since offset voltage trimming on the ALD1704A/ ALD1704B/ALD1704/ALD1704G is made when the input voltage is symmetrical to the supply voltages, this internal switching does not ...

Page 5

... AMBIENT TEMPERATURE (°C) OPEN LOOP VOLTAGE GAIN AS A FUNCTION OF LOAD RESISTANCE 1000 100 10K LOAD RESISTANCE (Ω) LARGE - SIGNAL TRANSIENT RESPONSE 5V/div 5V/div ALD1704A/ALD1704B ALD1704/ALD1704G R = 2KΩ L ±5 ±6 ± ±5.0V S +75 +100 +125 V = ±5. 25°C A 100K ...

Page 6

... LOW PASS FILTER (RFI FILTER 0.02µ Cutoff frequency = = 3.2kHz π Gain = 10 Frequency roll-off 20dB/decade ALD1704A/ALD1704B ALD1704/ALD1704G TYPICAL APPLICATIONS 0.1µF V OUT ≥ 1.5KΩ L +5V 0.1µF V OUT C = 4000pF L -5V 0.1µF V OUT 10K Low Frequency 10K Breakpoint ƒ ...

Page 7

... S (45° (45° ALD1704A/ALD1704B ALD1704/ALD1704G SOIC-8 PACKAGE DRAWING 8 Pin Plastic SOIC Package E Dim D ø ø Advanced Linear Devices Millimeters Min Max Min 1.75 0.053 1.35 0.25 0.004 0.10 0.45 0.014 0.35 0.25 0.007 0.18 5.00 0.185 4.69 4.05 0.140 3.50 1.27 BSC 0.050 BSC 6 ...

Page 8

... ø ALD1704A/ALD1704B ALD1704/ALD1704G PDIP-8 PACKAGE DRAWING 8 Pin Plastic DIP Package Dim Min 3. 0. 0.20 c 9.40 D-8 5. 2.79 S-8 1.02 ø Advanced Linear Devices Millimeters Inches Max Min 5.08 0.105 1.27 0.015 2.03 0.050 1.65 0.035 ...

Page 9

... ø ALD1704A/ALD1704B ALD1704/ALD1704G CERDIP-8 PACKAGE DRAWING 8 Pin CERDIP Package Dim D Ø Advanced Linear Devices Millimeters Inches Min Max Min 3.55 5.08 0.140 1.27 2.16 0.050 0.97 1.65 0.038 0.36 0.58 0.014 ...

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