MAX1300 Datasheet, PDF (6/31 Pages) Maxim Integrated Products – 8-/4-Channel, 12V Multirange Inputs, Serial 16-Bit ADCs

8-/4-Channel, ±12V Multirange Inputs,
Serial 16-Bit ADCs
ELECTRICAL CHARACTERISTICS (continued)
(AV_DD1 = AV_DD2 = DV_DD = DV_DDO = 5V, AGND1 = DGND = DGNDO = AGND2 = AGND3 = 0, f_CLK = 3.5MHz (50% duty cycle),
external clock mode, V_REF = 4.096V (external reference operation), REFCAP = AV_DD1, maximum single-ended bipolar input range
(±12V), C_DOUT = 50pF, C_SSTRB = 50pF, T_A = -40°C to +85°C, unless otherwise noted. Typical values are at T_A = +25°C.)
PARAMETER
CS Rise to DOUT Disable
CS Fall to SCLK Rise Setup
CS High Minimum Pulse Width
SCLK Fall to CS Rise Hold
SSTRB Rise to CS Fall Setup
DOUT Rise/Fall Time
SSTRB Rise/Fall Time
SYMBOL
t_TR
t_CSS
t_CSPW
t_CSH
(Note 4)
C_L = 50pF
C_L = 50pF
CONDITIONS
MIN TYP MAX UNITS
40
ns
40
ns
40
ns
0
ns
40
ns
10
ns
10
ns
Note 1: Parameter tested at AV_DD1 = AV_DD2 = DV_DD = DV_DDO = 5V.
Note 2: See definitions in the Parameter Definitions section at the end of the data sheet.
Note 3: Guaranteed by correlation with single-ended measurements.
Note 4: Not production tested. Guaranteed by design.
Note 5: To ensure external reference operation, V_REFCAP must exceed (AV_DD1 - 0.1V). To ensure internal reference operation, V_REFCAP
must be below (AV_DD1 - 0.4V). Bypassing REFCAP with a 0.1µF or larger capacitor to AGND1 sets VREFCAP ≈ 4.096V. The tran-
sition point between internal reference mode and external reference mode lies between the REFCAP buffer disable threshold
minimum and maximum values (Figures 17 and 18).
Note 6: The SCLK duty cycle can vary between 40% and 60%, as long as the t_CL and t_CH timing requirements are met.
Typical Operating Characteristics
(AV_DD1 = AV_DD2 = DV_DD = DV_DDO = 5V, AGND1 = DGND = DGNDO = AGND2 = AGND3 = 0, f_CLK = 3.5MHz (50% duty cycle),
external clock mode, V_REF = 4.096V (external reference operation), REFCAP = AV_DD1, maximum single-ended bipolar input range,
C_DOUT = 50pF, C_SSTRB = 50pF; unless otherwise noted.)
ANALOG SUPPLY CURRENT
vs. ANALOG SUPPLY VOLTAGE
2.60
EXTERNAL CLOCK MODE
2.55
+85°C
2.50
2.45
+25°C
2.40
-40°C
2.35
2.30
4.75 4.85 4.95 5.05 5.15 5.25
AV_DD1 (V)
PREAMPLIFIER SUPPLY CURRENT
vs. PREAMPLIFIER SUPPLY VOLTAGE
24
EXTERNAL CLOCK MODE
23
22
+85°C
21
20
19
+25°C
18
17
-40°C
16
15
4.75 4.85 4.95 5.05 5.15 5.25
AV_DD2 (V)
DIGITAL SUPPLY CURRENT
vs. DIGITAL SUPPLY VOLTAGE
0.90
EXTERNAL CLOCK MODE
0.85
+85°C
0.80
+25°C
0.75
-40°C
0.70
0.65
4.75 4.85 4.95 5.05 5.15 5.25
DV_DD (V)
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