Document
Preliminary
SCA103T Series
Inclinometer
FEATURES • High sensitivity by differential analog output or digital output via SPI. Single ended signal available by using a differential amplifier or digitally using internal 11 bit digital output and external micro controller. • Available ranges ±15°,±30° • Over damped frequency response (-3dB @ 8...28 Hz) • Integrated temperature sensor, accessible via SPI • Digitally activated electrostatic sensing element self test • Continuous memory parity check • Advanced internal and external connection failure detection • Single +5V supply; ratiometric analog voltage outputs • Serial Peripheral Interface (SPI) compatible digital output • DIL-12 plastic SMD package, lead-free reflow solderable BENEFITS • High immunity to external interference and noise supply voltage. • Improved temperature dependency and long term stability • Excellent reliability and stability over time and temperature • Instrumentation grade performance • High resolution and low noise • Wide operating temperature range • Outstanding overload and shock durability APPLICATIONS • Single axis inclination instruments • Inclination based position measurement
ELECTRICAL CHARACTERISTICS
Electrical characteristics
Supply voltage Vdd (1 Current consumption Analog resistive output load Analog capacitive output load Digital output load SPI clock frequency AD conversion time Data transfer time @500 kHz clock 150 38 @ 500kHz clock Vdd = 5 V; No load Vout to Vdd or Vss 10 20 1 500
Condition
Min
4.75
Typ
5.0 4
Max
5.25 5
Units
V mA kOhm nF nF kHz µs µs
PERFORMANCE CHARACTERISTICS
D/S Performance characteristics
D D S D S D D D S D D D S S S D D D Typical non-linearity (8 Cross-axis sensitivity (11 Frequency response –3dB (LP) (9 Ratiometric error
(10
Condition
Nominal Mounting plane horizontal Mounting position @ room temperature @ room temperature
(6b, 13
SCA103T-D04
±15 ±0.26 Horizontal Vdd/2 280(15 16(5a 0.057 ±1 < ± 0.11 < ±2 < ±0.14 < ±2.5 < ±0.29 < ±5 ±0.5 -1…1 -2.5…1 ±T.B.D ±T.B.D 4 8…28 1 0.0004 0.009 12 < 0.014
SCA103T-D05
±30 ±0.5 Horizontal Vdd/2 140(15 8(5b 0.11 ±2 < ±0.11 < ±2 < ±0.14 < ±2.5 < ±0.29 < ±5 ±0.5 -1…1 -2.5…1 ±0.11 ±2 4 8…28 1 0.0004 0.017 12 < 0.014
Units
° g V mV/° V/g ° mg ° mg ° mg ° mg % % % ° mg % Hz % °/√Hz °/LSB Bits °
Measuring range (2 Measuring direction (3 Zero point (4 Sensitivity Offset calibration accuracy (6a, 13 Offset temperature dependency
0...70°C -25…85°C -40…125°C
Sensitivity calibration accuracy (7a, 13 Sensitivity temperature error (7b, 13
@ room temperature -40...85°C -40…125°C Over measuring range @ room temperature @ room temperature Vdd = 4.75...5.25V From DC...100Hz Effective Differential @ steady temp
Output noise density (12 Digital output resolution Long term stability (14
Parameters marked as D are measured in differential mode using external differential amplifier. The performance of selected amplifier may have an effect to some parameters. Differential signal is determined as a Out_diff .