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Part: MAX4461H
Category:
Analog & Mixed-Signal Processing
Description: MAX4460, MAX4461, MAX4462 SOT23, 3V/5V, Single-Supply, Rail-to-rail Instrumentation Amplifiers
Company: Maxim Integrated Products
Datasheet: Download MAX4461H datasheet File size : 242 kB
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Datasheet text preview:
19-2279; Rev 2; 11/02
SOT23, 3V/5V, Single-Supply, Rail-to-Rail Instrumentation Amplifiers
General Description
The MAX4460/MAX4461/MAX4462 are instrumentation amplifiers with precision specifications, low-power cons u m p t i o n , and excellent gain-bandwidth product. P roprietary design techniques allow ground-sensing capability combined with ultra-low input current and increased common-mode rejection performance. These Rail-to-Rail® output instrumentation amplifiers are offered in fixed or adjustable gains and the option for either a shutdown mode or a pin to set the output voltage relative to an external reference (see Ordering Information and Selector Guide). The MAX4460 has an adjustable gain and uses ground as its reference voltage. The MAX4461 is offered in fixed gains of 1, 10, and 100, uses ground as its reference voltage, and has a logic-controlled shutdown input. The MAX4462 is offered in fixed gains of 1, 10, and 100 and has a reference input pin (REF). REF sets the output voltage for zero differential input to allow bipolar signals in single-supply applications. The MAX4460/MAX4461/MAX4462 have high-impedance inputs optimized for small-signal differential voltages. The MAX4461/MAX4462 are factory trimmed to gains of 1, 10, or 100 (suffixed U, T, and H) with ±0.1% accuracy. The typical offset of the MAX4460/MAX4461/MAX4462 is 100µV. All devices have a gain-bandwidth product of 2.5MHz. These amplifiers operate with a single-supply voltage from 2.85V to 5.25V and with a quiescent current of only 700µA (less than 1µA in shutdown for the MAX4461). The M A X 4 4 6 2 can also be operated with dual supplies. S m a l l e r than most competitors, the MAX4460/ MAX4461/MAX4462 are available in space-saving 6-pin SOT23 packages. o Tiny 6-Pin SOT23 Package o Input Negative Rail Sensing o 1pA (typ) Input Bias Current o 100µV Input Offset Voltage o Rail-to-Rail Output o 2.85V to 5.25V Single Supply o 700µA Supply Current o ±0.1% Gain Error o 2.5MHz Gain-Bandwidth Product o 18nV/Hz Input-Referred Noise
Features
MAX4460/MAX4461/MAX4462
Ordering Information
PART MAX4460EUT-T MAX4460ESA MAX4461UEUT-T MAX4461UESA MAX4461TEUT-T MAX4461TESA MAX4461HEUT-T MAX4461HESA MAX4462UEUT-T MAX4462UESA MAX4462TEUT-T MAX4462TESA MAX4462HEUT-T MAX4462HESA TEMP RANGE -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C PINPACKAGE 6 SOT23-6 8 SO 6 SOT23-6 8 SO 6 SOT23-6 8 SO 6 SOT23-6 8 SO 6 SOT23-6 8 SO 6 SOT23-6 8 SO 6 SOT23-6 8 SO TOP MARK AASS -- AAST -- AASU -- AASV -- AASW -- AASX -- AASY --
________________________Applications
Industrial Process Control Strain-Gauge Amplifiers Transducer Interface Precision Low-Side Current Sense Low-Noise Microphone Preamplifier Differential Voltage Amplification Battery-Powered Medical Equipment
Selector Guide appears at end of data sheet. Pin Configurations appear at end of data sheet. Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
Typical Application Circuits
VCC
VCM + V
3
5
MAX4462 1
VCM - V 4 2 6
OUT
REF
Typical Application Circuits continued at end of data sheet. 1
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
SOT23, 3V/5V, Single-Supply, Rail-to-Rail Instrumentation Amplifiers MAX4460/MAX4461/MAX4462
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VDD to VSS) ..-0.3V to +6V All Other Pins ..(VSS - 0.3V) to (VDD + 0.3V) Output Short-Circuit Duration to Either Supply.......1s Continuous Power Dissipation (TA = +70°C) 6-Pin SOT23 (derate 8.7mW/°C above +70°C)...695mW 8-Pin SO (derate 5.9mW/°C above +70°C).........470mW Operating Temperature Range ...-40°C to +85°C Junction Temperature ......+150°C Storage Temperature Range .....-65°C to +150°C Lead Temperature (soldering, 10s)...300°C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS--MAX4460/MAX4461
(VDD = 5V, VCM = 0V, VDIFF = VIN+ - VIN- = 50mV to 100mV for G = 1, 20mV to 100mV for G = 10, 2mV to 48mV for G =100, MAX4460 is configured for G = 10, RL = 200k to GND, TA = +25°C, unless otherwise noted.)
PARAMETER Supply Voltage Supply Current Shutdown Supply Current Input Offset Voltage (Note 1) VOS SYMBOL VDD CONDITIONS Guaranteed by PSRR test VDD = 5V, VDIFF = 0V VDD = 3V, VDIFF = 0V MAX4461, SHDN = GND MAX4460ESA MAX4461ESA MAX446_EUT Input Resistance Input Common-Mode Range Input Common-Mode Rejection Ratio Power-Supply Rejection Ratio Input Bias Current FB Input Current VIH SHDN Logic Levels VIL SHDN Input Current Input Voltage Noise en VOH Output Voltage Swing VOL Short-Circuit Current ISC MAX4461 MAX4461, V SHDN = 0V or VDD (Note 2) f = 10kHz f = 1kHz VDD - VOH (Note 3) RL = 200k RL = 20k (Note 4) RL = 200k RL = 20k 1 18 38 1 3 0 0 ±150 2.5 5 0.2 0.2 mA mV RIN VCM CMRR PSRR IB VCM = VDD/2 Guaranteed by CMRR test VCM = -0.1V to (VDD - 1.7V) VDD = 2.85V to 5.25V (Note 2) MAX4460 (Note 2) MAX4461 0.7 X VDD 0.3 X VDD 100 pA nV/Hz Differential mode Common mode -0.1 90 80 120 100 1 1 100 100 VDD = 5V MIN 2.85 0.80 0.68 0.1 ±50 ±50 ±100 2 2 V DD 1.7 TYP MAX 5.25 1.1 0.9 1 ±425 ±300 ±600 G V dB dB pA pA µV UNITS V mA µA
V
2
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SOT23, 3V/5V, Single-Supply, Rail-to-Rail Instrumentation Amplifiers
ELECTRICAL CHARACTERISTICS--MAX4460/MAX4461 (continued)
(VDD = 5V, VCM = 0V, VDIFF = VIN+ - VIN- = 50mV to 100mV for G = 1, 20mV to 100mV for G = 10, 2mV to 48mV for G =100, MAX4460 is configured for G = 10, RL = 200k to GND, TA = +25°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS G = 1V/V, MAX4461UESA G = 10V/V, MAX4461TESA Gain Error RL = 20k G = 100V/V, MAX4461HESA G = 10V/V, MAX4460ESA MAX446_EUT Nonlinearity (Note 1) Maximum Capacitive Load -3dB Bandwidth Gain-Bandwidth Product Slew Rate CL BW-3dB GBWP SR RL = 20k No sustained oscillations G = 1V/V, MAX4461U CL = 100pF CL = 100pF G = 1V/V CL = 100pF G = 10V/V G = 100V/V Settling Time tS CL = 100pF, within 0.1% of G = 10V/V final value G = 100V/V G = 1V/V G = 10V/V, MAX4461T G = 100V/V, MAX4461H MIN TYP 0.1 0.12 0.15 0.15 0.15 0.05 100 2500 250 25 2.5 0.5 0.5 0.25 15 75 250 µs V/µs MHz kHz MAX 0.3 0.35 0.6 0.35 0.6 0.15 % pF % UNITS
MAX4460/MAX4461/MAX4462
ELECTRICAL CHARACTERISTICS--MAX4460/MAX4461
(VDD = 5V, VCM = 0V, VDIFF = VIN+ - VIN- = 50mV to 100mV for G = 1, 20mV to 100mV for G = 10, 2mV to 48mV for G = 100, MAX4460 is configured for G = 10, RL = 200k to GND, TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER Supply Voltage Supply Current Shutdown Supply Current SYMBOL VDD CONDITIONS Guaranteed by PSRR test VDD = 5V, VDIFF = 0V VDD = 3V, VDIFF = 0V MAX4461, SHDN = GND MAX4460ESA VDD = 5V TA = 0°C to +85°C TA = -40°C to +85°C G=1 TA = 0°C to +85°C Input Offset Voltage (Note 1) VOS MAX4461ESA TA = -40°C to +85°C MAX446_EUT Input Offset-Voltage Drift TCVOS (Note 1) G = 10 G = 100 G=1 G = 10 G = 100 MIN 2.85 TYP MAX 5.25 1.4 1.15 1 ±750 ±950 ±750 ±500 ±500 ±950 ±750 ±750 ±1400 ±1900 1.5 µV/°C µV UNITS V mA µA
TA = 0°C to +85°C TA = -40°C to +85°C
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