MAX109_CEAE .............................................. -40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range ............................ -65°C to +150°C
Lead Temperature (soldering, 10s) ................................. +300°C
Soldering Temperature (reflow) .......................................+260°C
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.
Electrical Characteristics
(V
DD
= +4.75V to +5.25V (MAX1098), V
DD
= +2.7V to +3.6V (MAX1099), external reference, V
REF
= +2.5V (MAX1098), V
REF
= +1.2V
(MAX1099), f
SCLK
= 2.5MHz, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
DC ACCURACY
(Note 1)
Resolution
Relative Accuracy (Note 2)
Differential Nonlinearity
Offset Error
Offset Temperature Coefficient
Gain Error
V
DD
/4 Absolute Error
Gain Temperature Coefficient
Channel-to-Channel Offset
Matching
CONVERSION RATE
Conversion Time (Note 3)
Track/Hold Acquisition Time
Aperture Delay
Internal Clock Frequency
ANALOG INPUTS (AIN0−AIN5)
Input Voltage Range (Note 4)
Common-Mode Range
Input Current (Note 5)
Input Capacitance
0.1
16
Measurement with respect to IN-, Figure 1
-2V
REF
+2V
REF
V
DD
5
V
V
µA
pF
t
CONV
t
ACQ
t
APR
f
CLK
57.6
Voltage measurement
Temperature measurement
16
30
62.3
65.5
1.1
2.2
ms
µs
ns
kHz
±2
±0.25
Inputs AIN0−AIN5, offset nulled
RES
INL
DNL
Inputs AIN0−AIN5
±10
±1
±1
10
±1
±1
±1
Bits
LSB
LSB
LSB
µV/°C
LSB
LSB
ppm/°C
LSB
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
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Maxim Integrated
│
2
MAX1098/MAX1099
10-Bit Serial-Output Temperature Sensors
with 5-Channel ADC
Electrical Characteristics (continued)
(V
DD
= +4.75V to +5.25V (MAX1098), V
DD
= +2.7V to +3.6V (MAX1099), external reference, V
REF
= +2.5V (MAX1098), V
REF
= +1.2V
(MAX1099), f
SCLK
= 2.5MHz, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
DIGITAL INPUTS
Input Voltage Low
Input Voltage High
Input Hysteresis
Input Leakage Current
Input Capacitance
DIGITAL OUTPUTS
Output Low Voltage
Output High Voltage
Three-State Output Leakage
Current
Three-State Output Capacitance
POWER REQUIREMENTS
Positive Supply Voltage
V
DD
MAX1098
MAX1099
Full-on, voltage measurements,
internal reference
Full-on, voltage measurements,
external reference
Positive Supply Current
(Note 6)
Full-on, temperature
measurements, internal
reference
Full-on, temperature
measurements, external
reference
Standby, SCLK = GND
Standby-plus, SCLK = GND
Shutdown, SCLK = GND
Power-Supply Rejection
Reference Voltage
Reference Tempco
Output Short-Circuit Current
Capacitive Bypass at REF
REF Output Noise
REF Line Regulation
REF Load Regulation
0 to 100µA output current
(Note 8)
f
N
= 10Hz to 10kHz
MAX1098
MAX1099
MAX1098
MAX1099
MAX1098
MAX1099
PSRR
V
REF
TC V
REF
(Note 7)
V
DD
= 5V
V
DD
= 3V
MAX1098
MAX1099
50
2.494
1.197
INTERNAL VOLTAGE REFERENCE CHARACTERISTICS
2.50
1.20
±20
1.25
0.1
130
65
+3.0
+0.2
4
2
10
10
2.506
1.203
V
ppm/°C
mA
µF
µV
RMS
mV/V
µV/µA
MAX1098
MAX1099
MAX1098
MAX1099
MAX1098
MAX1099
MAX1098
MAX1099
4.75
2.7
390
350
310
280
440
400
360
330
120
190
2
65
10
dB
500
500
µA
5.25
3.6
V
V
OH
I
OUT
15
V
OL
I
SINK
= 5mA
0.6
V
DD
- 0.6
±10
V
V
µA
pF
I
SOURCE
= 0.5mA
V
IH
I
IN
V
IL
0.8
V
DD
- 0.8
0.2
1
16
V
V
V
µA
pF
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V
HYST
I
DD
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Maxim Integrated
│
3
MAX1098/MAX1099
10-Bit Serial-Output Temperature Sensors
with 5-Channel ADC
Electrical Characteristics (continued)
(V
DD
= +4.75V to +5.25V (MAX1098), V
DD
= +2.7V to +3.6V (MAX1099), external reference, V
REF
= +2.5V (MAX1098), V
REF
= +1.2V
(MAX1099), f
SCLK
= 2.5MHz, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
SYMBOL
MAX1098
MAX1099
Converting
Shutdown
CONDITIONS
MIN
0.8
0.8
10
25
24
0.13
T
A
= +85°C, P
D
= 1mW
Output Error (Notes 1, 9)
T
A
= 0°C to +70°C
T
A
= -40°C to 0°C,
T
A
= +70°C to +85°C
PSRR
(Note 7)
MAX109_C
MAX109_C
MAX109_C
0.2
0.18
2N3904 (Note 10)
±2
10
100
±4
±1
±2
±4
°C/V
°C
RMS
°C
µA
µA
°C
TYP
MAX
2.5
1.2
UNITS
EXTERNAL VOLTAGE REFERENCE CHARACTERISTICS
Reference Voltage Range
REF Input Resistance
REF Input Capacitance
INTERNAL TEMPERATURE MEASUREMENT CHARACTERISTICS
Resolution
°C
V
REF
V
MΩ
pF
Power-Supply Rejection Ratio
Noise
EXTERNAL TEMPERATURE MEASUREMENT CHARACTERISTICS
Output Error
Remote Diode Excitation (1X)
Remote Diode Excitation (10X)
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Maxim Integrated
│
4
MAX1098/MAX1099
10-Bit Serial-Output Temperature Sensors
with 5-Channel ADC
Timing Characteristics
(V
DD
= +4.75V to +5.25V (MAX1098), V
DD
= +2.7V to +3.6V (MAX1099), external reference, V
REF
= +2.5V (MAX1098), V
REF
= +1.2V
(MAX1099), f
SCLK
= 2.5MHz, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Figures 4, 6)
PARAMETER
SCLK Frequency
SCLK Pulse Width Low
SCLK Pulse Width High
CS
Low to SCLK High
SCLK High to
CS
Setup
CS
Pulse Width
SCLK High to
CS
Low Setup
SCLK High to
CS
High Setup
DIN Setup to SCLK High Time
DIN Hold Time
SCLK Fall to Output Data Valid
CS
Fall to Output Enable
CS
Rise to Output Disable
SSTRB Rise to SCLK Rise
SCLK Fall to SSTRB Fall
SYMBOL
f
SCLK
t
CL
t
CH
t
CSS
t
CSH
t
CS
t
CS0
t
CS1
t
DS
t
DH
t
DO
t
DV
t
TR
t
SCLK
t
SSTRB
R
L
= 100kW, C
L
= 50pF
R
L
= 100kW, C
L
= 50pF
R
L
= 100kW, C
L
= 50pF
0
200
200
200
100
100
100
50
100
100
0
150
150
50
CONDITIONS
MIN
TYP
MAX
2.5
UNITS
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Note 1:
Tested at V
DD
= +5.0V (MAX1098) and V
DD
= +3.0V (MAX1099).
Note 2:
Relative accuracy is the deviation of the analog value at any code from its theoretical value after the full-scale range has
been calibrated.
Note 3:
Conversion time is defined as the number of clock cycles (64 for voltage measurements, 125 for temperature measure-
ments) multiplied by the internal clock period.
Note 4:
Individual analog input voltages cannot extend beyond the power-supply rails.
Note 5:
Input resistance is typically 250MΩ; 5μA limit reflects limitations in production testing.
Note 6:
Specifications for full-on status assume continuous conversions. Power modes are software selected (Table 3).
Note 7:
Measured at V
FS(+4.75V)
- V
FS(+5.25V)
for the MAX1098 and at V
FS(+2.7V)
- V
FS(+3.6V)
for the MAX1099.
Note 8:
External load should not change during conversions for specified accuracy.
Note 9:
Excludes noise and self-heating effects. Output error for MAX109_C guaranteed by design.
Note 10:
External temperature sensing over -40°C to +85°C range, device at +25°C. Guaranteed by design.
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