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Part: MAX4338
Category:
Analog & Mixed-Signal Processing
Description: SC70/SOT23-8, 50mA Iout, Rail-to-rail I/o op Amps With Shutdown/mute
Company: Maxim Integrated Products
Datasheet: Download MAX4338 datasheet File size : 399 kB
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Datasheet text preview:
19-2136; Rev 1; 9/01
SC70/SOT23-8, 50mA IOUT, Rail-to-Rail I/O Op Amps with Shutdown/Mute
General Description
The MAX4335MAX4338 op amps deliver 40mW per channel into 32 from ultra-small SC70/SOT23 packages making them ideal for mono/stereo headphone drivers in portable applications. These amplifiers have a 5MHz gain-bandwidth product and are guaranteed to deliver 50mA of output current while operating from a single supply of 2.7V to 5.5V. The MAX4336 and the MAX4338 have a shutdown/mute mode that reduces the supply current to 0.04µA per amplifier and places the outputs in a high-impedance state. T h e MAX4335MAX4338 have 90dB power-supply rejection ratio (PSRR), eliminating the need for costly p r e - r e g u l a t i o n in most audio applications. Both the i n p u t voltage range and the output voltage swing include both supply rails, maximizing dynamic range. The MAX4335/MAX4336 single amplifiers are available i n ultra-small 6-pin SC70 packages. The MAX4337/ M A X 4 3 3 8 dual amplifiers are available in an 8-pin SOT23 and a 10-pin µMAX package, respectively. All devices are specified from -40°C to +85°C. o 50mA Output Drive Capability o Low 0.003% THD (20kHz into 10k) o Rail-to-Rail® Inputs and Outputs o 2.7V to 5.5V Single-Supply Operation o 5MHz Gain-Bandwidth Product o 95dB Large-Signal Voltage Gain o 90dB Power-Supply Rejection Ratio o No Phase Reversal for Overdrive Inputs o Ultra-Low Power Shutdown/Mute Mode Reduces Supply Current to 0.04µA Places Output in High-Impedance State o Thermal Overload Protection
Features
MAX4335MAX4338
Ordering Information
PART MAX4335EXT-T MAX4336EXT-T MAX4337EKA-T MAX4337EUA MAX4338EUB 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 PINPACKAGE 6 SC70-6 6 SC70-6 8 SOT23-8 8 µMAX 10 µMAX TOP MARK AAX AAW AAIK -- --
________________________Applications
32 Headphone Drivers Portable/Battery-Powered Instruments Wireless PA Control Hands-Free Car Phones Transformer/Line Drivers DAC/ADC Buffers
Pin Configurations appear at end of data sheet.
Typical Operating Circuit
VCC
TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY
0.005 RL = 10k, VCC = 5V VOUT = 2VP-P
R3 C1 VIN R4
MAX4335 MAX4336
C2
THD + NOISE (%)
32
0.004
0.003
R2 R1 C3
0.002 10 100 1k FREQUENCY (Hz) 10k 100k
Rail-to-Rail is a registered trademark of Nippon Motorola Ltd. ________________________________________________________________ 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.
SC70/SOT23-8, 50mA IOUT, Rail-to-Rail I/O Op Amps with Shutdown/Mute MAX4335MAX4338
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VCC to GND) ..........-0.3V to +6V All Other Pins to GND ...........(GND - 0.3V) to (VCC + 0.3V) Output Short-Circuit Duration to VCC or GND ...Continuous Continuous Power Dissipation (TA = +70°C) 6-Pin SC70 (derate 3.1mW/°C above +70°C) ......245mW 8-Pin SOT23 (derate 9.1mW/°C above +70°C)....727mW 8-Pin µMAX (derate 4.5mW/°C above +70°C) .....362mW 10-Pin µMAX (derate 5.6mW/°C above +70°C) ....444mW 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.
DC ELECTRICAL CHARACTERISTICS
(VCC = 2.7V, GND = 0, VCM = 0, VOUT = VCC/2, RL = to VCC/2, VSHDN = VCC, TA = +25°C, unless otherwise noted.)
PARAMETER Operating Supply Voltage Range Quiescent Supply Current (Per Amplifier) Input Offset Voltage Input Bias Current Input Offset Current Differential Input Resistance Input Common-Mode Voltage Range Common-Mode Rejection Ratio Power-Supply Rejection Ratio Output Resistance SYMBOL VCC ICC VOS IB IOS RIN(Diff) VCM CMRR PSRR ROUT CONDITIONS Inferred from PSRR Test VCC = 5.5V VCC = 2.7 VCM = GND to VCC VCM = GND to VCC VCM = GND to VCC |VIN- - VIN+| 1.2V Inferred from CMRR Test VCM = GND to VCC VCC = 2.7V to 5.5V AVCL = 1V/V VCC = 5V: RL = 10k VOUT = 0.4V to 4.6V Large-Signal Voltage Gain AVOL VCC = 5V: RL = 100 VOUT = 0.5V to 4.5V VCC = 2.7V: RL = 32 VOUT = 0.5V to 2.2V VCC = 2.7V; RL = 10k VCC = 2.7V; RL = 32 VCC = 5V; RL = 10k VCC = 5V; RL = 100 VCC - VOH VOL VCC - VOH VOL VCC - VOH VOL VCC - VOH VOL 70 62 GND 60 70 80 90 0.05 95 84 72 100 100 220 280 100 100 190 240 350 350 400 400 mV dB MIN 2.7 1.3 1.2 ±0.6 ±100 ±7 500 8.4 VCC ±3 ±400 ±30 TYP MAX 5.5 1.8 UNITS V mA mV nA nA k V dB dB
Output Voltage Swing
V OUT
2
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SC70/SOT23-8, 50mA IOUT, Rail-to-Rail I/O Op Amps with Shutdown/Mute
DC ELECTRICAL CHARACTERISTICS (continued)
(VCC = 2.7V, GND = 0, VCM = 0, VOUT = VCC/2, RL = to VCC/2, VSHDN = VCC, TA = +25°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS VCC = 2.7V; IS O U R C E , ISINK = 50mA Output Drive IOUT VCC = 5V; IS O U R C E , ISINK = 50mA Short-Circuit Current SHDN Logic Levels SHDN Leakage Current Output Leakage Current in Shutdown Shutdown Supply Current (Per Amplifier) ISC VIH VIL IIL IOUT(SHDN) ICC(SHDN) Normal mode Shutdown mode VCC = 5V, GND < VSHDN < VCC VCC = 5V, VSHDN = 0, VOUT = 0, VCC SHDN = GND; VCC = 5V 0.01 <0.04 0.7 x VCC 0.3 x VCC 0.5 0.5 0.5 VCC - VOH VOL 270 360 110 500 500 mA V µA µA µA VCC - VOH VOL MIN TYP 270 360 MAX 500 500 mV UNITS
MAX4335MAX4338
DC ELECTRICAL CHARACTERISTICS
(VCC = 2.7V, GND = 0, VCM = 0, VOUT = VCC/2, RL = to VCC/2, VSHDN = VCC, TA = -40°C to +85°C, unless otherwise noted.) (Note 1)
PARAMETER Operating Supply Voltage Range Quiescent Supply Current (Per Amplifier) Input Offset Voltage Input Bias Current Input Offset Current Input Common-Mode Voltage Range Common-Mode Rejection Ratio Power-Supply Rejection Ratio SYMBOL VCC ICC VOS IB IOS VCM CMRR PSRR CONDITIONS Inferred from PSRR test VCC = 5.5V VCM = GND to VCC VCM = GND to VCC VCM = GND to VCC Inferred from CMRR test VCM = GND to VCC VCC = 2.7V to 5.5V VCC = 5V: RL = 100, VOUT = 0.6V to 4.4V VCC = 2.7V: RL = 32, VOUT = 0.6V to 2.1V GND 50 64 66 dB 56 MIN 2.7 TYP MAX 5.5 2.25 ±6 ±600 ±60 VCC UNITS V mA mV nA nA V dB dB
Large-Signal Voltage Gain
AVOL
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3
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