Datasheet

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General Description

The MAX410/MAX412/MAX414 single/dual/quad op

amps set a new standard for noise performance in

high-speed, low-voltage systems. Input voltage-noise

density is guaranteed to be less than 2.4nV/√Hz at

1kHz. A unique design not only combines low noise

with ±5V operation, but also consumes 2.5mA supply

current per amplifier. Low-voltage operation is guaran-

teed with an output voltage swing of 7.3V

P-P

into 2kΩ

from ±5V supplies. The MAX410/MAX412/MAX414 also

operate from supply voltages between ±2.4V and ±5V

for greater supply flexibility.

Unity-gain stability, 28MHz bandwidth, and 4.5V/µs

slew rate ensure low-noise performance in a wide vari-

ety of wideband and measurement applications. The

MAX410/MAX412/MAX414 are available in DIP and SO

packages in the industry-standard single/dual/quad op

amp pin configurations. The single comes in an ultra-

small TDFN package (3mm  3mm).

Applications

Low-Noise Frequency Synthesizers

Infrared Detectors

High-Quality Audio Amplifiers

Ultra Low-Noise Instrumentation Amplifiers

Bridge Signal Conditioning

Features

o Voltage Noise: 2.4nV/√Hz (max) at 1kHz

o 2.5mA Supply Current Per Amplifier

o Low Supply Voltage Operation: ±2.4V to ±5V

o 28MHz Unity-Gain Bandwidth

o 4.5V/µs Slew Rate

o 250µV (max) Offset Voltage (MAX410/MAX412)

o 115dB (min) Voltage Gain

o Available in an Ultra-Small TDFN Package

MAX410/MAX412/MAX414

Single/Dual/Quad, 28MHz, Low-Noise,

Low-Voltage, Precision Op Amps

________________________________________________________________

Maxim Integrated Products

OUT

N.C.V-

NULL

V+IN-

IN+

NULL

DIP/SO/TDFN

TOP VIEW

IN2-

IN2+V-

V+

OUT2IN1-

IN1+

OUT1

DIP/SO

MAX412

MAX410

Pin Configurations

+IN

-IN

42.2kΩ**

200Ω

1kΩ*

OUT

42.2kΩ

1/2 MAX412

*TRIM FOR GAIN.

**TRIM FOR COMMON-MODE REJECTION.

LOW-NOISE INSTRUMENTATION AMPLIFIER

Typical Operating Circuit

19-4194; Rev 6; 9/09

Ordering Information

PART TEMP RANGE PIN-PACKAGE

MAX410CPA 0°C to +70°C 8 Plastic DIP

MAX410BCPA 0°C to +70°C 8 Plastic DIP

MAX410CSA 0°C to +70°C 8 SO

MAX410BCSA 0°C to +70°C 8 SO

MAX410EPA -40°C to +85°C 8 Plastic DIP

MAX410BEPA -40°C to +85°C 8 Plastic DIP

MAX410ESA -40°C to +85°C 8 SO

MAX410BESA -40°C to +85°C 8 SO

MAX410ETA -40°C to +85°C 8 TDFN-EP*

MAX410MSA/PR -55°C to +125°C 8 SO**

MAX410MSA/PR-T -55°C to +125°C 8 SO**

EP = Exposed pad. Top Mark—AGQ.

Contact factory for availability.

Ordering Information continued at end of data sheet.

Pin Configurations continued at end of data sheet.

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim's website at www.maxim-ic.com.

Summary of content (13 pages)

PAGE 1
9-4194; Rev 6; 9/09 Single/Dual/Quad, 28MHz, Low-Noise, Low-Voltage, Precision Op Amps The MAX410/MAX412/MAX414 single/dual/quad op amps set a new standard for noise performance in high-speed, low-voltage systems. Input voltage-noise density is guaranteed to be less than 2.4nV/√Hz at 1kHz. A unique design not only combines low noise with ±5V operation, but also consumes 2.5mA supply current per amplifier. Low-voltage operation is guaranteed with an output voltage swing of 7.
PAGE 2
MAX410/MAX412/MAX414 Single/Dual/Quad, 28MHz, Low-Noise, Low-Voltage, Precision Op Amps ABSOLUTE MAXIMUM RATINGS Supply Voltage .......................................................................12V Differential Input Current (Note 1) ....................................±20mA Input Voltage Range........................................................V+ to VCommon-Mode Input Voltage ..............(V+ + 0.3V) to (V- - 0.3V) Short-Circuit Current Duration....................................
PAGE 3
Single/Dual/Quad, 28MHz, Low-Noise, Low-Voltage, Precision Op Amps MAX410/MAX412/MAX414 ELECTRICAL CHARACTERISTICS (continued) (V+ = 5V, V- = -5V, TA = +25°C, unless otherwise noted.) PARAMETER SYMBOL Operating Supply-Voltage Range VS Supply Current IS CONDITIONS MIN TYP ±2.4 Per amplifier MAX UNITS ±5.25 V 2.7 mA TYP MAX UNITS ±150 ±350 µV 2.5 ELECTRICAL CHARACTERISTICS (V+ = 5V, V- = -5V, TA = 0°C to +70°C, unless otherwise noted.
PAGE 4
MAX410/MAX412/MAX414 Single/Dual/Quad, 28MHz, Low-Noise, Low-Voltage, Precision Op Amps ELECTRICAL CHARACTERISTICS (MAX410 only) (V+ = 5V, V- = -5V, TA = -55°C to +125°C, unless otherwise noted.) PARAMETER Input Offset Voltage Offset Voltage Tempco Input Bias Current Input Offset Current Common-Mode Input Voltage SYMBOL CONDITIONS MIN VOS ∆VOS/∆T Over operating temperature range TYP MAX ±200 ±400 ±1 UNITS µV µV/°C IB ±130 ±350 nA IOS ±100 ±200 nA VCM ±3.5 +3.7/ -3.
PAGE 5
Single/Dual/Quad, 28MHz, Low-Noise, Low-Voltage, Precision Op Amps VS = ±5V TA = +25°C CURRENT-NOISE DENSITY (pA/√Hz) 10 45 40 35 UNITS (%) VS = ±5V TA = +25°C 1kHz VOLTAGE NOISE DISTRIBUTION 50 100 1k 20 5 1/F CORNER = 220Hz 10k 0 1 10 FREQUENCY (Hz) 100 1k 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 INPUT-REFERRED VOLTAGE NOISE (nV/√Hz) 10k FREQUENCY (Hz) 0.
PAGE 6
Typical Operating Characteristics (continued) (V+ = 5V, V- = -5V, TA = +25°C, unless otherwise noted.) SLEW RATE (V/µs) 8 3 2 1 7 6 5 4 3 2 50 MAX410-14 toc11 VS = ±5V RL = 10kΩ II 20pF 9 UNITY-GAIN BANDWIDTH (MHz) EACH AMPLIFIER VS = ±5V 4 SUPPLY CURRENT (mA) 10 MAX410-14 toc09 5 UNITY-GAIN BANDWIDTH vs. TEMPERATURE SLEW RATE vs. TEMPERATURE MAX410-14 toc10 SUPPLY CURRENT vs.
PAGE 7
Single/Dual/Quad, 28MHz, Low-Noise, Low-Voltage, Precision Op Amps RS 2kΩ 35 -91 -94 CL 30 25 20 AV = -1, RS = 2kΩ 15 10 -97 150 VS = ±5V TA = +25°C 140 MAX410-14 toc19 40 OVERSHOOT (%) THD+N (dB) VIN 7VP-P VS = ±5V TA = +25°C 30pF 45 CHANNEL SEPARATION (dB) -88 50 MAX410-14 toc18 VS = ±5V TA = +25°C 499Ω MAX410-14 toc17 -85 MAX412/MAX414 CHANNEL SEPARATION vs. FREQUENCY PERCENTAGE OVERSHOOT vs. CAPACITIVE LOAD TOTAL HARMONIC DISTORTION PLUS NOISE vs.
PAGE 8
MAX410/MAX412/MAX414 Single/Dual/Quad, 28MHz, Low-Noise, Low-Voltage, Precision Op Amps Applications Information The MAX410/MAX412/MAX414 provide low voltagenoise performance. Obtaining low voltage noise from a bipolar op amp requires high collector currents in the input stage, since voltage noise is inversely proportional to the square root of the input stage collector current.
PAGE 9
Single/Dual/Quad, 28MHz, Low-Noise, Low-Voltage, Precision Op Amps 100kΩ +VS 2kΩ 10Ω +VS D.U.T 22µF 2kΩ TO SCOPE x1 RIN = 1MΩ MAX410 4.7µF -VS -VS 110kΩ 4.7µF 100kΩ MAX410 MAX412 MAX414 0.1µF 24.9kΩ Figure 3. 0.
PAGE 10
MAX410/MAX412/MAX414 Single/Dual/Quad, 28MHz, Low-Noise, Low-Voltage, Precision Op Amps 909Ω Rf 499Ω +5V 0.022µF Rn 10kΩ 100Ω D.U.T MAX410 MAX412 MAX414 eno D.U.T Rp 10kΩ MAX410 MAX412 MAX414 0.022µF -5V Figure 6a. Voltage Follower Circuit with 3900pF Load Figure 5. Current-Noise Test Circuit Tech measures input-referred noise.
PAGE 11
Single/Dual/Quad, 28MHz, Low-Noise, Low-Voltage, Precision Op Amps MAX410 MAX412 MAX414 CF 82pF VIN 1kΩ RI 10Ω RI 10Ω D.U.T D.U.T VOUT CL 0.01µF VOUT VIN CL > 0.015µF MAX410 MAX412 MAX414 909Ω Figure 8. Capacitive-Load Driving Circuit with Loop-Enclosed Isolation Resistor Figure 7a. Capacitive-Load Driving Circuit VS = ±5V TA = +25°C INPUT 1V/div 10kΩ GND 1 OUTPUT 1V/div GND NULL 8 NULL MAX410 V+ 7 1µs/div Figure 7b. Driving a 0.
PAGE 12
MAX410/MAX412/MAX414 Single/Dual/Quad, 28MHz, Low-Noise, Low-Voltage, Precision Op Amps Ordering Information (continued) PART TEMP RANGE PIN-PACKAGE MAX412CPA 0°C to +70°C 8 Plastic DIP MAX412BCPA 0°C to +70°C 8 Plastic DIP MAX412CSA 0°C to +70°C 8 SO MAX412BCSA 0°C to +70°C 8 SO MAX412EPA -40°C to +85°C -40°C to +85°C 8 Plastic DIP MAX412ESA -40°C to +85°C 8 SO 14 OUT4 OUT1 1 IN1- 13 IN4- 2 4 1 IN1+ V+ 4 -40°C to +85°C 8 SO MAX414CPD 0°C to +70°C 14 Plastic DIP MAX414BCPD
PAGE 13
Single/Dual/Quad, 28MHz, Low-Noise, Low-Voltage, Precision Op Amps REVISION NUMBER REVISION DATE 5 10/08 Added rugged plastic product. 9/09 Added military temperature operating range and new Electrical Characteristics table for the MAX410. Updated Package Information table. 6 DESCRIPTION PAGES CHANGED 1, 11 1, 2, 4, 12–13 Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied.