MINI ANALOG SERIES 0.5
Rail-to-Rail CMOS OPERATIONAL AMPLIFIER
Rev.2.0_01 S-89430/89431 Series
Seiko Instruments Inc.
9
Electrical Characteristics
Table 7
(Ta = +25°C unless otherwise specified)
Parameter Symbol Conditions Min. Typ. Max. Unit
Test
Circuit
Range of operating power
supply voltage VDD − 0.9 − 5.5 V −
1. VDD = 3.0 V
Table 8
DC Electrical Characteristics (VDD = 3.0 V) (Ta = +25°C unless otherwise specified)
Parameter Symbol Conditions Min. Typ. Max. Unit
Test
Circuit
Current consumption
(per circuit)*1 IDD V
CMR = VOUT = 1.5 V − 0.50 0.75 μA 6
S-89430 Series −10 ±5 +10 mV 2
Input offset voltage VIO V
CMR = 1.5 V S-89431 Series −5 ±3 +5 mV 2
Input offset current IIO − − 1 − pA −
Input bias current IBIAS − − 1 − pA −
Common-mode input voltage
range VCMR − 0 − 3 V 3
Voltage gain (open loop) AVOL VSS + 0.1 V ≤ VOUT ≤ VDD − 0.1 V,
VCMR = 1.5 V, RL = 1.0 MΩ 70 80 − dB 9
VOH R
L = 100 kΩ 2.95 − − V 4 Maximum output
swing voltage VOL R
L = 100 kΩ − − 0.05 V 5
Common-mode input signal
rejection ratio CMRR VSS ≤ VCMR ≤ VDD 45 65 − dB 3
Power supply voltage
rejection ratio PSRR VDD = 0.9 V to 5.5 V 70 80 − dB 1
VOUT = VDD − 0.1 V 400 500 − μA 7
Source current ISOURCE VOUT = 0 V 4800 6000 − μA 7
VOUT = 0.1 V 400 550 − μA 8
Sink current ISINK VOUT = VDD 4800 6000 − μA 8
*1. When the output is saturated on the VDD side, a current consumption of up to 3 μA to 5 μA may flow.
Refer to “4. Current consumption (per circuit) vs. Common-mode input voltage range characteristics (voltage
follower configuration)” in “ Characteristics (Typical Data)”.
Table 9
AC Electrical Characteristics (VDD = 3.0 V) (Ta = +25°C unless otherwise specified)
Parameter Symbol Conditions Min. Typ. Max. Unit
Slew rate SR RL = 1.0 MΩ, CL = 15 pF (Refer to Figure 17) − 5 − V/ms
Gain-bandwidth product GBP CL = 0 pF − 4.8 − kHz
Maximum load capacitance CL − − 47 − pF