Document
TS27L2C,I,M
PRECISION VERY LOW POWER CMOS DUAL OPERATIONAL AMPLIFIERS
s VERY LOW POWER CONSUMPTION :
10µA/op
s OUTPUT VOLTAGE CAN SWING TO
GROUND
s EXCELLENT PHASE MARGIN ON
CAPACITIVE LOADS
s STABLE AND LOW OFFSET VOLTAGE s THREE INPUT OFFSET VOLTAGE
SELECTIONS DESCRIPTION These devices are low cost, low power dual operational amplifiers designed to operate with single or dual supplies. These operational amplifiers use the ST silicon gate CMOS process allowing an excellent consumption-speed ratio. These series are ideally suited for low consumption applications. Three power consumptions are available allowing to have always the best consumption-speed ratio:
N DIP8 (Plastic Package)
D SO8 (Plastic Micropackage)
P TSSOP8 (Thin Shrink Small Outline Package)
u ICC = 10µA/amp.: TS27L2 (very low power) u ICC = 150µA/amp.: TS27M2 (low power) u ICC = 1mA/amp.: TS272 (standard)
These CMOS amplifiers offer very high input impedance and extremely low input currents. The major advantage versus JFET devices is the very low input currents drift with temperature (see figure 2). ORDER CODE
Package Part Number Temperature Range N TS27L2C/AC/BC 0°C, +70°C TS27L2I/AI/BI -40°C, +125°C TS27L2M/AM/BM -55°C, +125°C Example : TS27L2ACN • • • D • • • P • • •
PIN CONNECTIONS (top view)
1 2 3 4 + +
8 7 6 5
N = Dual in Line Package (DIP) D = Small Outline Package (SO) - also available in Tape & Reel (DT) P = Thin Shrink Small Outline Package (TSSOP) - only available in Tape & Reel (PT)
1 - Output 1 2 - Inverting Input 1 3 - Non-inverting Input 1 4 - V CC 5 - Non-inverting Input 2 6 - Inverting Input 2 7 - Output 2 8 - V CC +
November 2001
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TS27L2C,I,M
BLOCK DIAGRAM
VCC
Current source
xI
Input differential
Second stage
Output stage
Output
VCC
E E
ABSOLUTE MAXIMUM RATINGS
Symbol VCC Vid Vi Io Iin Toper Tstg
+
Parameter Supply Voltage
3) 1) 2)
TS27L2C/AC/BC
TS27L2I/AI/BI 18 ±18 -0.3 to 18 ±30 ±5
TS27L2M/AM/BM
Unit V V V mA mA
Differential Input Voltage Input Voltage
Output Current for VCC+ ≥ 15V Input Current Operating Free-Air Temperature Range Storage Temperature Range 0 to +70
-40 to +125 -65 to +150
-55 to +125
°C °C
1. All values, except differential voltage are with respect to network ground terminal. 2. Differential voltages are the non-inverting input terminal with respect to the inverting input terminal. 3. The magnitude of the input and the output voltages must never exceed the magnitude of the positive supply voltage.
OPERATING CONDITIONS
Symbol VCC+ Vicm Supply Voltage Common Mode Input Voltage Range Parameter Value 3 to 16 0 to VCC+ - 1.5 Unit V V
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VCC
T24
T 25
T 26 T6 T8
T27 T5
T 10 T 15
SCHEMATIC DIAGRAM (for 1/2 TS27L2)
R2 T 28 T1
Input
T 18
T2
Input R1 C1
T11
T 12
T17
T7
T 23 T3
Output
T19 T4
T16
T9 T 13 T 14
T20
T 22
T21
T29
VCC
TS27L2C,I,M
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TS27L2C,I,M
ELECTRICAL CHARACTERISTICS VCC+ = +10V, VCC-= 0V, Tamb = +25°C (unless otherwise specified)
TS27L2C/AC/BC Symbol Parameter Min. Input Offset Voltage VO = 1.4V, Vic = 0V Vio Tmin ≤ Tamb ≤ Tmax TS27L2C/I/M TS27L2AC/AI/AM TS27L2B/C/I/M TS27L2C/I/M TS27L2AC/AI/AM TS27L2B/C/I/M Typ. 1.1 0.9 0.25 Max. 10 5 2 12 6.5 3 TS27L2I/AI/BI TS27L2M/AM/BM Min. Typ. Max. 10 5 2 12 6.5 3.5 Unit
1.1 0.9 0.25
mV
DVio Iio
Input Offset Voltage Drift Input Offset Current note 1) Vic = 5V, VO = 5V Tmin ≤ Tamb ≤ Tmax Input Bias Current - see note 1 Vic = 5V, VO = 5V Tmin ≤ Tamb ≤ Tmax High Level Output Voltage Vid = 100mV, RL = 1MΩ Tmin ≤ Tamb ≤ Tmax Low Level Output Voltage Vid = -100mV Large Signal Voltage Gain ViC = 5V, RL = 1MΩ, Vo = 1V to 6V Tmin ≤ Tamb ≤ Tmax Gain Bandwidth Product Av = 40dB, RL = 1MΩ, CL = 100pF, fin = 100kHz Common Mode Rejection Ratio ViC = 1V to 7.4V, Vo = 1.4V Supply Voltage Rejection Ratio VCC+ = 5V to 10V, Vo = 1.4V Supply Current (per amplifier) Av = 1, no load, Vo = 5V Tmin ≤ Tamb ≤ Tmax Output Short Circuit Current Vo = 0V, Vid = 100mV Output Sink Current Vo = VCC, Vid = -100mV Slew Rate at Unity Gain RL = 1MΩ, CL = 100pF, Vi = 3 to 7V Phase Margin at Unity Gain Av = 40dB, RL = 1MΩ, CL = 100pF Overshoot Factor Equivalent Input Noise Voltage f = 1kHz, Rs = 100Ω Channel Separation 65 60 60 45 8.8 8.7
2 1 100 1 150 9 8.8 8.6 50 100 60 40
2 1 200 1 300 9
µV/°C pA
Iib
pA
VOH VOL Avd
V
50 100
mV
V/mV
GBP CMR SVR
0.1 80 80 10 15 17 65 60
0.1 80 80 10 15 18
MHz dB dB
ICC Io Isink SR φm KOV en Vo1/Vo2
1.
µA
60 45 0.04 45 30 68 120
60 45 0.04 45 30 68 120
mA mA V/µs Degrees % nV ----------Hz dB
Maximum values including unavoidable inaccuracies of the industrial test.
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TS27L2C,I,M
TYPICAL CHARACTERISTICS Figure 1 : Supply Current (each amplifier) versus Supply Voltage
20
Figure 3b : High Level Output Voltage versus High Level Output Current
20
OUTPUT VOLTAGE, V OH (V)
SUPPLY CURRENT, I CC (µA)
15
Tamb = 25 °C AV = 1 VO = VCC / 2
Tamb = 25° C 16 12 8 4 0 -50 V id = 100mV VCC = 16V
10
VCC = 10V
5
0
4
8
12
16
SUPPLY VOLTAGE, VCC (V)
-40 -30 -20 -10 OUTPUT CURRENT, I.