MAX11156 Datasheet, PDF (2/27 Pages) Maxim Integrated Products – 18-Bit, 500ksps, ±5V SAR ADC with Internal Reference in TDFN

MAX11156
18-Bit, 500ksps, ±5V SAR ADC
with Internal Reference in TDFN
Absolute Maximum Ratings
V_DD to GND.............................................................-0.3V to +6V
OVDD to GND........ -0.3V to the lower of (V_DD + 0.3V) and +6V
AIN+ to GND......................................................................... Q7V
AIN-, REF, REFIO, AGNDS
to GND................ -0.3V to the lower of (V_DD + 0.3V) and +6V
SCLK, DIN, DOUT, CNVST
to GND................ -0.3V to the lower of (V_DD + 0.3V) and +6V
Maximum Current into Any Pin...........................................50mA
Continuous Power Dissipation (T_A = +70NC)
TDFN (derate 18.2mW/NC above +70NC)...................1349mW
Operating Temperature Range............................ -40NC to +85NC
Junction Temperature.......................................................+150NC
Storage Temperature Range............................. -65NC to +150NC
Lead Temperature (soldering, 10s).................................. +300NC
Soldering Temperature (reflow)........................................+260NC
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation
of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect device reliability.
Package Thermal Characteristics (Note 1)
TDFN
Junction-to-Ambient Thermal Resistance (q_JA)........59.3°C/W
Junction-to-Case Thermal Resistance (q_JC).............22.5°C/W
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.
Electrical Characteristics
(V_DD = 4.75V to 5.25V, V_OVDD = 2.3V to 5.25V, f_SAMPLE = 500kHz, V_REF = 4.096V, Reference Mode 3; T_A = T_MIN to T_MAX, unless
otherwise noted. Typical values are at T_A = +25NC.) (Note 2)
PARAMETER
ANALOG INPUT (Note 3)
Input Voltage Range
Absolute Input Voltage Range
Input Leakage Current
Input Capacitance
Input-Clamp Protection Current
DC ACCURACY (Note 4)
Resolution
No Missing Codes
Offset Error
Offset Temperature Coefficient
Gain Error
Gain Error Temperature
Coefficient
Integral Nonlinearity
Differential Nonlinearity
Positive Full-Scale Error
Negative Full-Scale Error
SYMBOL
CONDITIONS
AIN+ to AIN-, K = 5.0/4.096
AIN+ to GND
AIN- to GND
Acquisition phase
Both inputs
N
DNL
T_A = T_MIN to T_MAX
T_A = +25°C to +85°C
MIN
TYP
MAX
UNITS
-K x V_REF
+K x V_REF
V
-(V_DD +
0.1)
+(V_DD +
0.1)
V
-0.1
+0.1
-10
+0.001
+10
µA
15
pF
-20
+20
mA
18
Bits
18
Bits
-1.5
±0.1
+1.5
mV
-40
±2.6
+40
LSB
±2.4
µV/°C
-40
±8
+40
LSB
±1
ppm/°C
-8
±2.5
+8
LSB
-6
±2.5
+6
-0.9
±0.5
+0.9
LSB
-55
+55
LSB
-45
+45
LSB
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