Noise performance, Analog output – Measurement Computing BTH-1208LS-OEM User Manual
Page 20

BTH-1208LS-OEM User's Guide
Specifications
20
Noise performance
Table 6. Noise performance, differential mode
Range
Typical counts
LSBrms
±20 V
3
0.45
±10 V
3
0.45
±5 V
3
0.45
±4 V
4
0.61
±2.5 V
5
0.76
±2 V
7
1.06
±1.25 V
10
1.52
±1 V
12
1.82
Table 7. Noise performance, single-ended mode
Range
Typical counts
LSBrms
±10 V
6
0.91
Analog output
Table 8. Analog output specifications
Parameter
Condition
Specification
Resolution
12-bits, 1 in 4,096
Output range
0 V to 2.5 V
Number of channels
2
Throughput (Note 2)
Software paced
10 S/s single channel typ, PC dependent
Power on and reset voltage
USB operation
Initializes to 000h code
Bluetooth operation
The outputs can be individually configured to
initialize to 000h or to have user configurable
values written to the outputs when the Bluetooth
host is connected or disconnected.
Output current drive
Each D/A OUT
5 mA source capability
Slew rate
0.75 V/ µs typ
Table 9. Analog output accuracy, all values are (±),accuracy tested at no load
Range
Accuracy (LSB)
0 V to 2.5 V
8.0 typ, 73.0 max
Table 10. Analog output accuracy components, all values are (±)
Range
% of FSR
Gain Error at FS (mV) Offset (mV)
Accuracy at FS (mV)
0 V to 2.5 V
0.16 typ,1.44 max
4.0 typ, 36.0 max
1.0 typ, 9.0 max (Note 4)
5.0 typ, 45.0 max
Note 4:
Zero-scale offsets may result in a fixed zero-scale error producing a dead-band digital input code
region. In this case, changes in digital input code at values less than 0x040 may not produce a
corresponding change in the output voltage. The offset error is tested and specified at code 0x040.