MAX1358B Datasheet, PDF (11/71 Pages) Maxim Integrated Products – 16-Bit, Data-Acquisition System with ADC, DACs, UPIOs, RTC, Voltage Monitors, and Temp Sensor

16-Bit, Data-Acquisition System with ADC, DACs,
UPIOs, RTC, Voltage Monitors, and Temp Sensor
Table 1. Output Noise (Notes 13 and 14)
RATE (sps)
GAIN = 1
OUTPUT NOISE (µV_RMS)
GAIN = 2
GAIN = 4
GAIN = 8
10
1.75
1.75
1.75
1.75
40
2.92
2.92
2.92
2.92
50
3.23
3.23
3.23
3.23
60
3.60
3.60
3.60
3.60
200
56.06
56.06
56.06
56.06
240
102.36
102.36
102.36
102.36
400
587.06
587.06
587.06
587.06
477
951.07
951.07
951.07
951.07
Note 13: V_REF = +1.25V, bipolar mode, V_IN = 1.24912V, PGA gain = 1, T_A = +25°C.
Note 14: Assume ±3 sigma peak-to-peak variation; noise-free resolution means no code flicker at given bits’ LSB.
Table 2. Peak-to-Peak Resolution
RATE (sps)
10
40
50
60
200
240
400
477
GAIN = 1
17.57
16.83
16.68
16.53
12.57
11.70
9.18
8.48
PEAK-TO-PEAK RESOLUTION (BITS)
GAIN = 2
GAIN = 4
16.57
15.57
15.83
14.83
15.68
14.68
15.53
14.53
11.57
10.57
10.70
9.70
8.18
7.18
7.48
6.48
GAIN = 8
14.57
13.83
13.68
13.53
9.57
8.70
6.18
5.48
Table 3. Maximum External Source Impedance Without 16-Bit Gain Error
PARAMETER
0 (Note 15)
EXTERNAL CAPACITANCE (pF)
50
100
500
1000
Resistance (kΩ)
350
60
30
10
4
Note 15: 2pF parasitic capacitance is assumed, which represents pad and any other parasitic capacitance.
5000
1
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