AS1536/AS1537
Datasheet - Electrical Characteristics
Table 3. Electrical Characteristics (Continued)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
Digital Inputs: SCLK, SHDNN, CSN
0.7x
VDD
VIH
VIL
SCLK, CSN Input High Voltage
SCLK, CSN Input Low Voltage
V
V
0.3x
VDD
VHYST
IIN
SCLK, CSN Input Hysteresis
SCLK, CSN Input Leakage
0.2
V
VIN = 0V or VDD
±0.01
±1
15
µA
SCLK, CSN Input Capacitance 7
CIN
pF
V
VDD -
0.4
VSH
VSL
SHDNN Input High Voltage
SHDNN Input Low Voltage
SHDNN Input Current
0.4
V
SHDNN = 0V or VDD
±4.0
µA
VDD -
1.1
VSM
VFLT
SHDNN Input Mid Voltage
SHDNN Voltage, Floating
1.1
V
V
SHDNN = float
SHDNN = float
VDD/2
SHDNN Max Allowed Leakage,
Mid Input
±50
nA
Digital Output: DOUT
ISINK = 5mA
0.4
0.8
VOL
VOH
Output Voltage Low
V
V
ISINK = 16mA
VDD -
0.5
Output Voltage High
ISOURCE = 0.5mA
CSN = VDD
IL
Tri-State Leakage Current
±0.01 ±10
15
µA
pF
7
COUT
Tri-State Output Capacitance
CSN = VDD
Power Requirements
VDD
IDD
Supply Voltage
2.7
5.25
V
Int. Reference (AS1536), VDD = 3.6V
Int. Reference (AS1536), VDD = 5.25V
External Reference, VDD = 3.6V
External Reference, VDD = 5.25V
Shutdown mode, VDD = 3.6V
1.4
1.6
1.0
1.2
0.3
0.6
2.0
2.3
1.4
1.7
2
mA
Supply Current
µA
Shutdown mode, VDD = 5.25V
4
VDD = VDDMIN to VDDMAX,
full-scale input
Power-Supply Rejection 8
PSR
±1
mV
1. Tested at VDD = +2.7V.
2. Relative accuracy is the deviation of the analog value at any code from its theoretical value after the full-scale
range and offset have been calibrated.
3. Offset nulled.
4. Achievable with standard timing (see Figure 25 on page 14).
5. Sample tested at 0.1% AQL.
6. External load should not change during conversion for specified accuracy.
7. Guaranteed by design; not subject to production testing.
8. Measured as [VFS(VDDMIN) - VFS(VDDMAX)] with external reference.
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