Features: ·Very Low Power Consumption - Single supply +5 V operation: 1.7 mW - Dual supply ±5 V operation: 3.2 mW·Offers superior performance to VFCs and multi-slope integrating ADCs·Differential Inputs - Single Channel (CS5507/8) and Four-Channel (CS5505/6) pseudo-differential versions·Either 5 V...
CS5505: Features: ·Very Low Power Consumption - Single supply +5 V operation: 1.7 mW - Dual supply ±5 V operation: 3.2 mW·Offers superior performance to VFCs and multi-slope integrating ADCs·Differential In...
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Parameter |
Symbol |
Min |
Typ |
Max |
UnitS |
DC Power Supplies: Digital Ground (Note 22) Positive Digital (Note 23) Positive Analog Negative Analog (VA+)-(VA-) (VA+)-(VD+) |
DGND VD+ VA+ VAVdiff1 Vdiff2 |
-0.3 -0.3 -0.3 +0.3 -0.3 -0.3 |
- - - - - - |
VD+)-0.3 6.0 or VA+ 12.0 -6.0 12.0 12.0 |
V V V V V V |
Input Current, Any Pin Except Supplies (Note 24,25) |
Iin |
- |
±10 |
mA | |
Analog Input Voltage AIN and VREF pins |
VINA |
(VA-) - 0.3 |
(VA+) + 0.3 |
V | |
Digital Input Voltage |
VIND |
-0.3 |
(VD+) + 0.3 |
V | |
Ambient Operating Temperaturet |
TA |
-55 |
125 |
||
Storage temperature |
Tstg |
-65 |
150 |
The CS5505/6/7/8 are a family of low power CMOS A/D converters which are ideal for measuring low-frequency signals representing physical, chemical, and biological processes.
The CS5507/8 have single-channel differential analog and reference inputs while the CS5505/6 have four pseudo-differential analog input channels. The CS5505/7 have a 16-bit output word. The CS5506/8 have a 20-bit output word.The CS5505/6/7/8 sample upon command up to 100 output updates per second.
The on-chip digital filter CS5505 offers superior line rejection at 50 and 60 Hz when the device is operated from a 32.768 kHz clock (output word rate = 20 Hz.).
The CS5505/6/7/8 include on-chip self-calibration circuitry which can be initiated at any time or temperature to ensure minimum offset and full-scale errors.
The CS5505/6/7/8 serial port offers two general-purpose modes for the direct interface to shift registers or synchronous serial ports of industry-standard microcontrollers.