TS507CD

TS507 High precision rail-to-rail operational amplifier Features ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ Pin connections (top view) Ultra low offset voltage: 25 µV typ, 100 µV max Rail-to-rail input/output voltage swing Operating from 2.7 V to 5.5 V High speed: 1.9 MHz 45° phase margin with 100 pF Low consumption: 0.8 mA at 2.7 V Very large signal voltage gain: 131 dB High power supply rejection ratio: 105 dB Very high ESD protection 5kV (HBM) Latch-up immunity Available in SOT23-5 micropackage SO-8 Non Inverting Input 3 4 Inverting Input Output VDD 1 2 5 VCC SOT23-5 Applications ■ ■ ■ ■ Battery-powered applications Portable devices Signal conditioning Medical instrumentation N.C. Inverting Input Non Inverting Input VDD 1 2 3 4 _ + 8 7 6 5 N.C. VCC Output N.C. Description The TS507 is a high performance rail-to-rail input and output amplifier with very low offset voltage. This amplifier uses a new trimming technique that yields ultra low offset voltages without any need for external zeroing. The circuit offers very stable electrical characteristics over the entire supply voltage range, and is particularly intended for automotive and industrial applications. The TS507 is housed in the space-saving 5-pin SOT23 package, making it well suited for batterypowered systems. This micropackage simplifies the PC board design because of its ability to be placed in tight spaces (external dimensions are 2.8 mm x 2.9 mm). April 2008 Rev 5 1/20 www.st.com 20 Contents TS507 Contents 1 2 3 Absolute maximum ratings and operating conditions . . . . . . . . . . . . . 3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Application note . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 3.1 3.2 Out-of-the-loop compensation technique . . . . . . . . . . . . . . . . . . . . . . . . . 15 In-the-loop-compensation technique . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 4.1 4.2 SOT23-5 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 SO-8 package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 5 6 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 2/20 TS507 Absolute maximum ratings and operating conditions 1 Absolute maximum ratings and operating conditions Table 1. Symbol VCC Vid Vin Tstg Rthja Supply voltage (1) Differential input voltage Input voltage (3) (2) Absolute maximum ratings (AMR) Parameter Value 6 ±2.5 VDD-0.3 to VCC+0.3 -65 to +150 (4) (5) Unit V V V °C °C/W Storage temperature Thermal resistance junction to ambient SOT23-5 SO-8 Thermal resistance junction to case SOT23-5 SO-8 Maximum junction temperature HBM: human body model(6) 250 125 81 40 150 5 300 Rthjc Tj °C/W °C kV V kV ESD MM: machine model (7) (8) CDM: charged device model Latch-up immunity 1. Value with respect to VDD pin. 2 class A 2. Differential voltages are the non-inverting input terminal with respect to the inverting input terminal. 3. VCC-Vin must not exceed 6V and Vin must not exceed 6V. 4. Short-circuits can cause excessive heating and destructive dissipation. 5. Rthja/c are typical values. 6. Human body model: A 100 pF capacitor is charged to the specified voltage, then discharged through a 1.5 kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations while the other pins are floating. 7. Machine model: A 200 pF capacitor is charged to the specified voltage, then discharged directly between two pins of the device with no external series resistor (internal resistor < 5 Ω). This is done for all couples of connected pin combinations while the other pins are floating. 8. Charged device model: all pins and the package are charged together to the specified voltage and then discharged directly to the ground through only one pin. This is done for all pins. Table 2. Symbol VCC Vicm Vid Toper Operating conditions Parameter Supply voltage(1) Common mode input voltage range Differential input voltage(2) Value 2.7 to 5.5 VDD to VCC ±2.5 0 to +85 -40 to +125 Unit V V V °C Operating free air temperature range TS507C TS507I 1. Value with respect to VDD pin. 2. Differential voltages are the non-inverting input terminal with respect to the inverting input terminal. 3/20 Electrical characteristics TS507 2 Table 3. Symbol Electrical characteristics Electrical characteristics at VCC = +5V, VDD = 0V, Vicm = VCC/2, Tamb = 25°C, RL connected to VCC/2 (unless otherwise specified)(1) Parameter Conditions Min. Typ. Max. Unit DC performance Vicm = 0 to 3.8V, T=25°C TS507C full temp range TS507I full temp range Vicm = 0V to 5V, T=25°C TS507C full temp range TS507I full temp range Vio drift vs. temperature Input bias current Tmin < Top < Tmax T = 25°C TS507C full temp range TS507I full temp range T = 25°C TS507C full temp range TS507I full temp range Vicm from 0V to 3.8V, T=25°C TS507C full temp range TS507I full temp range Vicm from 0V to 5V Power supply rejection ratio 20 log (ΔVCC/ΔVio) VCC from 2.7V to 5.5V, Vicm=vcc/2, T=25°C TS507C full temp range TS507I full temp range RL = 10kΩ Vout= 0.5V to 4.5V , Full temp range RL = 600Ω, T=25°C TS507C full temp range TS507I full temp range RL = 10kΩ, T=25°C Full Temp range RL = 600Ω, T=25°C TS507C full temp range TS507I full temp range RL = 10kΩ, T=25°C Full temp range 91 90 89 99 98 94 94 91 1 8 70 75 110 25 35 50 25 100 250 400 450 550 750 µV Vio Input offset voltage(2) µV µV/°C nA ΔVio/Δt Iib 2 Iio Input offset current nA 115 dB 96 105 CMRR Common mode rejection ratio 20 log (ΔVicm/ΔVio) PSRR dB Avd Large signal voltage gain 131 67 95 110 120 15 15 90 110 125 15 15 dB VCC-VOH High level output voltage drop mV 4 64 VOL Low level output voltage mV 4 4/20 TS507 Table 3. Symbol Electrical characteristics Electrical characteristics at VCC = +5V, VDD = 0V, Vicm = VCC/2, Tamb = 25°C, RL connected to VCC/2 (unless otherwise specified)(1) (continued) Parameter Conditions Vout = VCC, Vid=-1V, T=25°C TS507C full temp range TS507I full temp range Vout = VDD, Vid=1V, T=25°C TS507C full temp range TS507I full temp range No load, Vout=VCC/2, Vicm=0 to 5V, T=25°C Full temp range Min. 74 60 53 90 77 70 Typ. 104 Max. Unit Isink Iout Isource mA 128 ICC Supply current (per operator)(2) 0.85 1.15 1.25 mA Dynamic performance GBP φm Gm SR eN iN Gain bandwidth product Phase margin Gain margin Slew rate Equivalent input noise voltage Equivalent input noise current RL = 2kΩ, CL = 100pF, f = 100kHz RL = 2kΩ CL=100pF , RL = 2kΩ CL=100pF , RL = 2kΩ, CL=100pF, Vout = 1.25V to 3.75V, 10% to 90% f = 1kHz f = 10kHz f=1kHz, G=1, RL=2kΩ Vicm=2V, , Vout=3.5Vpp 1.9 45 10 0.6 12 1.2 0.0003 MHz Degrees dB V/µs nV/√ Hz pA/√Hz % THD+eN THD + noise 1. All parameter limits at temperatures different from 25° C are guaranteed by correlation. 2. Measurements done at 4 Vicm values: Vicm=0 V, Vicm=3.8 V, Vicm=4.2 V, Vicm=5 V. 5/20 Electrical characteristics TS507 Table 4. Symbol Electrical characteristics at VCC = +3.3V, VDD = 0V, Vicm = VCC/2, Tamb = 25°C, RL connected to VCC/2 (unless otherwise specified)(1) Parameter Conditions Min. Typ. Max. Unit DC performance Vicm = 0 to 2.1V, T=25°C TS507C full temp range TS507I full temp range Vicm = 0V to 3.3V, T=25°C TS507C full temp range TS507I full temp range Vio drift vs. temperature Tmin < Top < Tmax T = 25°C TS507C full temp range TS507I full temp range T = 25°C TS507C full temp range TS507I full temp range Vicm from 0V to 2.1V RL = 10kΩ Vout= 0.5V to 2.8V , RL = 600Ω, T=25°C TS507C full temp range TS507I full temp range RL = 10kΩ, T=25°C Full temp range RL = 600Ω, T=25°C TS507C full temp range TS507I full temp range RL = 10kΩ, T=25°C Full temp range Isink Iout Isource Vout = VCC, Vid=-1V, T=25°C TS507C full temp range TS507I full temp range Vout = VDD, Vid=1V, T=25°C TS507C full temp range TS507I full temp range No load, Vout=VCC/2, Vicm=0 to 3.3V, T=25°C Full temp range 33 26 22 37 32 29 1 6 70 75 145 25 40 45 25 100 250 400 450 550 750 µV Vio Input offset voltage(2) µV ΔVio µV/°C Iib Input bias current nA 2 Iio Input offset current Common mode rejection ratio 20 log (ΔVicm/ΔVio) Large signal voltage gain nA CMRR Avd 115 127 59 85 100 110 15 15 80 100 115 15 15 dB dB VCC-VOH High level output voltage drop mV 4 57 VOL Low level output voltage mV 4 48 mA 56 ICC Supply current (per operator)(2) 0.81 1.1 1.2 mA 6/20 TS507 Table 4. Symbol Electrical characteristics Electrical characteristics at VCC = +3.3V, VDD = 0V, Vicm = VCC/2, Tamb = 25°C, RL connected to VCC/2 (unless otherwise specified)(1) (continued) Parameter Conditions Min. Typ. Max. Unit Dynamic performance GBP φm Gm SR eN Gain bandwidth product Phase margin Gain margin Slew rate Equivalent input noise voltage RL = 2kΩ, CL = 100pF, f = 100kHz RL = 2kΩ CL=100pF , RL = 2kΩ CL=100pF , RL = 2kΩ, CL=100pF, Vout= 0.5V to 2.8V, 10% to 90% f = 1kHz 1.9 45 10 0.6 12 0.0004 MHz Degrees dB V/µs nV/√ Hz % THD+eN THD + noise , f=1KHz, G=1, RL=2kΩ Vicm=1.15V, Vout=1.8Vpp 1. All parameter limits at temperatures different from 25° C are guaranteed by correlation. 2. Measurements done at 4 Vicm values: Vicm=0 V, Vicm=2.1 V, Vicm=2.5 V, Vicm=3.3 V. 7/20 Electrical characteristics TS507 Table 5. Symbol Electrical characteristics at VCC = +2.7V VDD = 0V, Vicm = VCC/2, Tamb = 25°C, RL connected to VCC/2 (unless otherwise specified)(1) Parameter Conditions Min. Typ. Max. Unit DC performance Vicm = 0 to 1.9V, T=25°C TS507C full temp range TS507I full temp range Vicm = 0V to 2.7V, T=25°C TS507C full temp range TS507I full temp range Vio drift vs. temperature Tmin < Top < Tmax T = 25°C TS507C full temp range TS507I full temp range T = 25°C TS507C full temp range TS507I full temp range Vicm from 0V to 1.5V RL = 10kΩ Vout= 0.5V to 2.2V , RL = 600Ω, T=25°C TS507C full temp range TS507I full temp range RL = 10kΩ, T=25°C Full temp range RL = 600Ω, T=25°C TS507C full temp range TS507I full temp range RL = 10kΩ, T=25°C Full temp range Isink Iout Isource Vout = VCC, Vid=-1V, T=25°C TS507C full temp range TS507I full temp range Vout = VDD, Vid=1V, T=25°C TS507C full temp range TS507I full temp range No load, Vout=VCC/2, Vicm=0 to 2.7V, T=25°C Full temp range 20 15 13 22 19 17 1 8 70 75 160 25 45 45 25 100 250 400 450 550 750 µV Vio Input offset voltage(2) µV ΔVio µV/°C Iib Input bias current nA 2 Iio Input offset current Common mode rejection ratio 20 log (ΔVicm/ΔVio) Large signal voltage gain nA CMRR Avd 115 126 57 85 100 105 15 15 80 100 115 15 15 dB dB VCC-VOH High level output voltage drop mV 4 57 VOL Low level output voltage mV 4 30 mA 35 ICC Supply current (per operator)(2) 0.79 1.1 1.2 mA 8/20 TS507 Table 5. Symbol Electrical characteristics Electrical characteristics at VCC = +2.7V VDD = 0V, Vicm = VCC/2, Tamb = 25°C, RL connected to VCC/2 (unless otherwise specified)(1) (continued) Parameter Conditions Min. Typ. Max. Unit Dynamic performance GBP φm Gm SR eN Gain bandwidth product Phase margin Gain margin Slew rate Equivalent input noise voltage RL = 2kΩ, CL = 100pF, f = 100kHz RL = 2kΩ CL=100pF , RL = 2kΩ CL=100pF , RL = 2kΩ, CL=100pF, Vout= 0.5V to 2.2V, 10% to 90% f = 1kHz 1.9 45 11 0.6 12 0.0005 MHz Degrees dB V/µs nV/√Hz % THD+eN THD + noise , f=1KHz, G=1, RL=2kΩ Vicm=0.85V, Vout=1.2Vpp 1. All parameter limits at temperatures different from 25° C are guaranteed by correlation. 2. Measurements done at 4 Vicm values: Vicm=0 V, Vicm=1.5 V, Vicm=1.9 V, Vicm=2.7 V. 9/20 Electrical characteristics TS507 Figure 1. Input offset voltage distribution for Figure 2. Vicm≤ VCC-1.2V at T=25°C 400 350 300 250 200 150 100 50 0 -50 -100 -150 -200 -250 Input offset voltage distribution vs. temperature for Vicm≤ VCC-1.2V 30 25 Vio distribution at T=25°C for 0V