AS1712

AS1710/AS1712 High-Output-Drive, 10MHz, 10V/µs, Rail-to-Rail I/O O p A m ps w i t h S h u td o w n D a ta S he e t 1 General Description The AS1710/AS1712 are low-offset, high-output CMOS op amps that deliver 200mA of peak output current from a single supply (2.7 to 5.5V). These devices were specifically designed to drive typical headset levels (32Ω), as well as bias RF power amplifiers for wireless handset applications. The devices are available as the standard products shown in Table 1. See also Ordering Information on page 16. Table 1. Standard Products Model AS1710A AS1710B AS1712A Description Single Op Amp with Shutdown Single Op Amp Quad Op Amp w/Shutdown Package SC70-6 SC70-5 TQFN-16 3x3mm 2 Key Features ! ! ! ! ! ! ! ! ! ! ! ! Constant Output Drive Capability: 50mA Rail-to-Rail Input and Output Supply Current: 1.6mA Single-Supply Operation: 2.7 to 5.5V Gain-Bandwidth Product: 10MHz High Slew Rate: 10V/µs Voltage Gain: 100dB (RLOAD = 100kΩ) Power-Supply Rejection Ratio: -85dB No Phase Reversal for Overdriven Inputs Unity-Gain Stable for Capacitive Loads: Up to 100pF Shutdown Mode (AS1710A) Current: 1nA typ Package Types: - SC70-6 - SC70-5 - TQFN-16 3x3mm These rail-to-rail I/O, wide-bandwidth amplifiers exhibit a high slew rate of 10V/µs and a gain-bandwidth product of 10MHz. The integrated shutdown feature (not included in B versions) drives the output low. These devices operate over the entire automotive temperature range (-40°C to +125°C). 3 Applications The devices are ideal for portable/battery-powered audio applications, portable headphone speaker drivers (32Ω), hands-free mobile phone kits, TFT panels, sound ports/cards, set-top boxes, biasing controls, DAC converter buffers, transformer/line drivers, motor drivers, and any other battery-operated audio device. Figure 1. Typical Application RF CIN RIN Headphone Jack to 32Ω Stereo Headset Audio In Left – AS1710 COUT + + VBIAS + AS1710 Audio In Right CIN COUT + – RIN RF www.austriamicrosystems.com Revision 1.04 1 - 17 AS1710/AS1712 Data Sheet - P i n o u t 4 Pinout Pin Assignments Figure 2. Pin Assignments (Top View) IN+ 1 6 VDD IN+ 1 5 VDD VSS 2 AS1710-A SC70-6 5 SHDNN VSS 2 AS1710-B SC70-5 4 OUT IN- 3 4 OUT IN- 3 14 OUT4 15 OUT1 16 IN1- IN1+ 1 VDD 2 IN2+ 3 IN2- 4 OUT2 5 SHDNN1/2 6 SHDNN3/4 7 OUT3 8 13 IN412 IN4+ 11 VSS 10 IN3+ 9 IN3- AS1712-A TQFN-16 3x3mm Pin Descriptions Table 2. Pin Descriptions Pin Number Pin Name IN+ INVDD VSS SHDNN OUT Description Non-inverting Input Inverting Input Positive Supply Input Negative Supply Input. This pin must be connected to ground in single-supply applications. Active Low Shutdown Control Amplifier Output See Figure 2 www.austriamicrosystems.com Revision 1.04 2 - 17 AS1710/AS1712 Data Sheet - A b s o l u t e M a x i m u m R a t i n g s 5 Absolute Maximum Ratings Stresses beyond those listed in Table 3 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 Electrical Characteristics on page 4 is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Table 3. Absolute Maximum Ratings Parameter Supply Voltage (VDD to VSS) Supply Voltage (All Other Pins) Output Short-Circuit Duration to VDD or VSS Continuous Power Dissipation Thermal Resistance ΘJA SC70-5 SC70-6 TQFN-16 3x3mm -40 -65 VSS - 0.3 Min Max +7 VDD + 0.3 1 247 245 33 +125 +150 +150 Units V V s mW ºC/W ºC ºC ºC The reflow peak soldering temperature (body temperature) specified is in accordance with IPC/JEDEC J-STD-020C “Moisture/Reflow Sensitivity Classification for Non-Hermetic Solid State Surface Mount Devices”. The lead finish for Pb-free leaded packages is matte tin (100% Sn). Derate at 31mW/ºC above 70ºC Derate at 31mW/ºC above 70ºC on PCB Comments Operating Temperature Range Storage Temperature Range Junction Temperature Package Body Temperature +260 ºC www.austriamicrosystems.com Revision 1.04 3 - 17 AS1710/AS1712 Data Sheet - E l e c t r i c a l C h a r a c t e r i s t i c s 6 Electrical Characteristics DC Electrical Characteristics VDD = 2.7V, VSS = 0V, VCM = VDD/2, VOUT = VDD/2, RLOAD = Infinite, VSHDNN = VDD, TAMB = -40 to +125ºC. Typical values at TAMB = 25°C. Table 4. DC Electrical Characteristics Symbol VDD VOFFSET IBIAS IOFFSET RIN VCM CMRR PSRR ROUT VOUT-SHDNN Parameter Supply Voltage Range Input Offset Voltage Input Bias Current Input Offset Current Input Resistance Common Mode Input Voltage Range Common Mode Rejection Ratio Power Supply Rejection Ratio Shutdown Output Impedance Shutdown Output Voltage Inferred from Common Mode 1 Rejection Ratio VSS < VCM < VDD VDD = 2.7 to 5.5V VSHDNN = 0V (A-Versions) VSHDNN = 0V, RLOAD = 2kΩ to VDD (A-Versions) RLOAD = 100kΩ AVOL Large Signal Voltage Gain VSS + 0.20V < VOUT < VDD - 0.20V RLOAD = 2kΩ RLOAD = 200Ω RLOAD = 32Ω VOUT Output Voltage Swing VDD - VOH or VOL - VSS RLOAD = 200Ω RLOAD = 2kΩ ILOAD = 10mA, VDD = 2.7V ILOAD = 30mA, VDD = 5V 85 79 69 VSS -45 -70 -70 -85 130 1 Condition Inferred from Power Supply Rejection Ratio Test VCM = VSS to VDD VCM = VSS to VDD Min 2.7 -3 Typ Max 5.5 Unit V mV pA pA 0.6 50 1 1 1 +3 50 1000 MΩ VDD V dB dB Ω 300 mV 170 100 92 80 350 70 9 55 100 100 dB 650 120 20 100 mV 180 mV Output Voltage VDD - VOH or VOL - VSS IOUT Output Source/Sink Current VDD = 2.7V, V- = VCM, V+ = VCM±100mV VDD = 5.0V, V- = VCM, V+ = VCM±100mV VDD = 2.7V, VCM = VDD/2 VDD = 5.0V, VCM = VDD/2 VSHDNN = 0V VDD = 2.7V mA 200 1.6 2.3 1 VSS + 0.3 VDD 0.3 50 1 IDD IDD-SHDNN Quiescent Supply Current per OpAmp Output Shutdown Supply Current per OpAmp (A-Versions) SHDNN Logic Threshold (A-Versions) SHDNN Input Bias Current 3.2 4.6 2000 1 mA nA Shutdown Mode Normal Operation VSS < VSHDNN < VDD (A-Versions) V pA 1. Guaranteed by design. www.austriamicrosystems.com Revision 1.04 4 - 17 AS1710/AS1712 Data Sheet - E l e c t r i c a l C h a r a c t e r i s t i c s AC Electrical Characteristics VDD = 2.7V, VSS = 0V, VCM = VDD/2, VOUT = VDD/2, RLOAD = Infinite, VSHDNN = VDD, TAMB = -40 to +125ºC. Typical values at TAMB = 25°C. Table 5. AC Electrical Characteristics Symbol GBWP FPBW SR PM GM THD+N CIN en Parameter Gain-Bandwidth Product Full-Power Bandwidth Slew Rate Phase Margin Gain Margin 1 Conditions VCM = VDD/2 VOUT = 2VP-P, VDD = 5V Min Typ 10 2.5 10 70 15 Max Units MHz MHz V/µs deg dB % pF Total Harmonic Distortion Plus Noise Input Capacitance Voltage-Noise Density 1 f = 10kHz, VOUT = 2VP-P, AVCL = 1V/V 0.05 6 f = 1kHz f = 10kHz AVCL = 1V/V, no sustained oscillations 15 10 100 1 7 20 √Hz pF µs µs ns nV/ Capacitive-Load Stability tSHDN tENABLE tON Shutdown Time (AS1710A) Enable Time from Shutdown (AS1710A) Power-Up Time 1. Guaranteed by design. www.austriamicrosystems.com Revision 1.04 5 - 17 AS1710/AS1712 Data Sheet - Ty p i c a l O p e r a t i n g C h a r a c t e r i s t i c s 7 Typical Operating Characteristics VDD = 2.7V; VSS = 0V, VCM = VDD/2, VOUT = VDD/2, RLOAD = ∞, VSHDNN = VDD TAMB = +25ºC (unless otherwise specified). Figure 3. Gain and Phase vs. Frequency Figure 4. Gain and Phase vs. Frequency, CLOAD = 100pF 120 Gain 320 280 240 120 Gain 320 280 240 Phase 100 80 100 80 Gain (dB) . Phase (deg) Gain (dB) . 60 40 20 0 -20 Phase 200 160 120 80 40 0 100000 60 40 20 0 -20 200 160 120 80 40 0 100000 -40 0.001 0.1 10 1000 -40 0.001 0.1 10 1000 Frequency (kHz) Frequency (kHz) Figure 5. PSRR vs. Frequency 0 -10 -20 Figure 6. CMRR vs. Frequency 0 -10 -20 -40 -50 -60 -70 -80 -90 PSRR neg PSRR pos CMRR (dB) . PSRR (dB) . -30 -30 -40 -50 -60 -70 -80 -90 CMRR -100 0.001 0.1 10 1000 -100 0.001 0.1 10 1000 Frequency (kHz) Frequency (kHz) Figure 7. Supply Current vs. Temperature 4 3.5 Figure 8. Shutdown Current vs. Temperature 1000 . Shutdown Current (nA) . Supply Current (mA) 3 2.5 2 2.7V 5V 100 10 1.5 1 0.5 0 -45 1 -20 5 30 55 80 105 130 0.1 -45 -20 5 30 55 80 105 130 Temperature (°C) Temperature (°C) www.austriamicrosystems.com Revision 1.04 Phase (deg) 6 - 17 AS1710/AS1712 Data Sheet - Ty p i c a l O p e r a t i n g C h a r a c t e r i s t i c s Figure 9. Supply Current vs. Common-Mode Voltage 3 2.5 5V Figure 10. Input Voltage Noise vs. Frequency 1000 2 1.5 2.7V Input Voltage Noise (nV/Hz) 3 4 5 Supply Current (mA) . . 100 1 0.5 0 0 1 2 10 1 0.001 0.1 10 1000 Common-Mode Voltage (V) Frequency (kHz) Figure 11. Output Voltage vs. Output Current, sourcing 5 5V Figure 12. Output Voltage vs. Output Current, sinking 1.75 4.5 t10s t>10s 3.5 3 2.5 2 1.5 1 0.5 0 50 100 t>10s t