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Part: MAX4257EUA
Category:
Multimedia
-> Audio/Video
Description: MAX4249, MAX4250, MAX4251, MAX4252, MAX4253, MAX4254, MAX4255, MAX4256, MAX4257 Ucsp, Single-Supply, Low-Noise, Low-Distortion, Rail-to-rail op Amps
Company: Maxim Integrated Products
Datasheet: Download MAX4257EUA datasheet File size : 449 kB
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Datasheet text preview:
19-1295; Rev 5; 5/03
UCSP, Single-Supply, Low-Noise, Low-Distortion, Rail-to-Rail Op Amps
General Description
The MAX4249MAX4257 low-noise, low-distortion operational amplifiers offer Rail-to-Rail® outputs and singlesupply operation down to 2.4V. They draw 400µA of quiescent supply current per amplifier while featuring ultra-low distortion (0.0002% THD), as well as low input v o l t a g e - n o i s e density (7.9nV/Hz) a n d low input current-noise density (0.5fA/Hz). These features make the devices an ideal choice for portable/battery-powered applications that require low distortion and/or low noise. F o r additional power conservation, the MAX4249/ MAX4251/MAX4253/MAX4256 offer a low-power shutdown mode that reduces supply current to 0.5µA and p u t s the amplifiers' outputs into a high-impedance state. The MAX4249-MAX4257's outputs swing rail-tor a i l and their input common-mode voltage range includes ground. The MAX4250MAX4254 are unitygain stable with a gain-bandwidth product of 3MHz. The MAX4249/MAX4255/MAX4256/MAX4257 are internally compensated for gains of 10V/V or greater with a gain-bandwidth product of 22MHz. The single MAX4250/ MAX4255 are available in space-saving 5-pin SOT23 packages. The MAX4252 is available in an 8-bump chipscale package (UCSPTM) and the MAX4253 is available in a 10-bump UCSP.
Features
o Available in Space-Saving UCSP, SOT23, and µMAX Packages o Low Distortion: 0.0002% THD (1k load) o 400µA Quiescent Supply Current per Amplifier o Single-Supply Operation from 2.4V to 5.5V o Input Common-Mode Voltage Range Includes Ground o Outputs Swing Within 8mV of Rails with a 10k Load o 3MHz GBW Product, Unity-Gain Stable (MAX4250MAX4254) 22MHz GBW Product, Stable with AV 10V/V (MAX4249/MAX4255/MAX4256/MAX4257) o Excellent DC Characteristics VOS = 70µV IBIAS = 1pA Large-Signal Voltage Gain = 116dB o Low-Power Shutdown Mode Reduces Supply Current to 0.5µA Places Outputs in a High-Impedance State o 400pF Capacitive-Load Handling Capability
MAX4249MAX4257
Applications
Wireless Communications Devices PA Control Portable/Battery-Powered Equipment Medical Instrumentation ADC Buffers Digital Scales/Strain Gauges
PART MAX4249ESD MAX4249EUB MAX4250EUK-T
Ordering Information
TEMP RANGE -40°C to +85°C -40°C to +85°C -40°C to +85°C PINPACKAGE 14 SO 10 µMAX 5 SOT23-5 TOP MARK -- -- ACCI
Ordering Information continued at end of data sheet. Selector Guide appears at end of data sheet.
Pin Configurations
TOP VIEW (BUMPS ON BOTTOM)
A 1 OUTA 2 VDD 3 A1 OUTB OUTB B1 B INAA2 INBA3 INB+ A4
SHDNB
B4
MAX4252
INB-
VDD C1 C2
MAX4253
C3 INA+
VSS C4
SHDNA
C
INA+
VSS
INB+
OUTA
INA-
UCSP
UCSP
Pin Configurations continued at end of data sheet. Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd. UCSP is a trademark of Maxim Integrated Products, Inc. ________________________________________________________________ Maxim Integrated Products 1
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.
UCSP, Single-Supply, Low-Noise, Low-Distortion, Rail-to-Rail Op Amps MAX4249MAX4257
ABSOLUTE MAXIMUM RATINGS
Power-Supply Voltage (VDD to VSS) ....+6.0V to -0.3V Analog Input Voltage (IN_+, IN_-)....(VDD + 0.3V) to (VSS - 0.3V) SHDN Input Voltage .....6.0V to (VSS - 0.3V) Output Short-Circuit Duration to Either Supply ..........Continuous Continuous Power Dissipation (TA = +70°C) 5-Pin SOT23 (derate 7.1mW/°C above +70°C)..571mW 8-Bump UCSP (derate 4.7mW/°C above +70°C)........379mW 8-Pin µMAX (derate 4.5mW/°C above +70°C) ...362mW 8-Pin SO (derate 5.88mW/°C above +70°C)......471mW 10-Bump UCSP (derate 6.1mW/°C above +70°C) ......484mW Note 1: 10-Pin µMAX (derate 5.6mW/°C above +70°C) ..444mW 14-Pin SO (derate 8.33mW/°C above +70°C).....667mW 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 Bump Temperature (soldering) (Note 1) Infrared (15s) .......+220°C Vapor Phase (60s) ........+215°C
This device is constructed using a unique set of packaging techniques that impose a limit on the thermal profile the device can be exposed to during board-level solder attach and rework. This limit permits only the use of the solder profiles recommended in the industry-standard specification, JEDEC 020A, paragraph 7.6, Table 3 for IR/VPR and Convection Reflow. Preheating is required. Hand or wave soldering is not allowed.
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
(VDD = 5V, VSS = 0, VCM = 0, VOUT = VDD/2, RL tied to VDD/2, SHDN = VDD, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Notes 2, 3)
PARAMETER Supply Voltage Range SYMBOL VDD (Note 4) VDD = 3V Quiescent Supply Current Per Amplifier Normal mode IQ VDD = 5V, UCSP only Shutdown mode (SHDN = VSS) (Note 2) Input Offset Voltage (Note 5) Input Offset Voltage Tempco Input Bias Current Input Offset Current Differential Input Resistance Input Common-Mode Voltage Range Common-Mode Rejection Ratio Power-Supply Rejection Ratio VOS TCVOS IB IOS RIN VCM CMRR PSRR Guaranteed by CMRR test VSS - 0.2V VCM VDD - 1.1V VDD = 2.4 to 5.5V RL = 10k to VDD/2; VOUT = 25mV to VDD - 4.97V RL = 1k to VDD/2; VOUT = 150V to VDD - 4.75V |VIN+ - VIN-| 10mV RL = 10k to VDD/2 VDD - VOH VOL - VSS -0.2 70 75 80 80 115 100 116 dB 112 8 7 25 20 mV (Note 6) (Note 6) 420 0.5 ±0.07 0.3 ±1 ±1 1000 VDD - 1.1 ±100 ±100 655 1.5 ±0.75 mV µV/°C pA pA G V dB dB VDD = 5V CONDITIONS MIN 2.4 400 420 575 µA TYP MAX 5.5 UNITS V
Large-Signal Voltage Gain
AV
Output Voltage Swing
V OUT
2
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UCSP, Single-Supply, Low-Noise, Low-Distortion, Rail-to-Rail Op Amps
ELECTRICAL CHARACTERISTICS (continued)
(VDD = 5V, VSS = 0, VCM = 0, VOUT = VDD/2, RL tied to VDD/2, SHDN = VDD, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Notes 2, 3)
PARAMETER Output Voltage Swing Output Short-Circuit Current Output Leakage Current SHDN Logic Low SHDN Logic High SHDN Input Current Input Capacitance Gain-Bandwidth Product GBW MAX4250MAX4254 MAX4249/MAX4255/MAX4256/MAX4257 Slew Rate Peak-to-Peak Input-Noise Voltage SR MAX4250MAX4254 MAX4249/MAX4255/MAX4256/MAX4257 enP-P f = 0.1Hz to 10Hz f = 10Hz Input Voltage-Noise Density en f = 1kHz f = 30kHz Input Current-Noise Density in f = 1kHz MAX4250MAX4254 AV = 1V/V, VOUT = 2VP-P, RL = 1k to GND (Note 7) Total Harmonic Distortion Plus Noise THD+N MAX4249/MAX4255/ MAX4256/MAX4257 AV = 1V/V, VOUT = 2VP-P, RL = 1k to GND (Note 7) No sustained oscillations MAX4250MAX4254, AV = 1V/V Gain Margin GM MAX4249/MAX4255/MAX4256/MAX4257, AV = 10V/V MAX4250MAX4254, AV = 1V/V Phase Margin M MAX4249/MAX4255/MAX4256/MAX4257, AV = 10V/V f = 1kHz 0.0012 f = 1kHz f = 20kHz SYMBOL V OUT ISC IL E A K VIL VIH IIL/IIH Shutdown mode (SHDN = VSS), VOUT = VSS to VDD (Note 2) (Note 2) (Note 2) SHDN = VSS = VDD (Note 2) 0.8 X VDD 0.5 11 3 MHz 22 0.3 V/µs 2.1 760 27 8.9 7.9 0.5 0.0004 0.006 % fA/Hz nV/Hz nVP-P 1.5 CONDITIONS |VIN+ - VIN-| 10mV, RL = 1k to VDD/2 VDD - VOH VOL - VSS MIN TYP 77 47 68 0.001 1.0 0.2 X VDD MAX 200 100 UNITS mV mA µA V V µA pF
MAX4249MAX4257
f = 20kHz
0.007 400 10 dB 12.5 74 degrees 68 pF
Capacitive-Load Stability
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