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General Description
The MAX1165/MAX1166 16-bit, low-power, successive-
approximation analog-to-digital converters (ADCs) fea-
ture automatic power-down, factory-trimmed internal
clock, and a 16-bit wide (MAX1165) or byte wide
(MAX1166) parallel interface. The devices operate from
a single +4.75V to +5.25V analog supply and a +2.7V
to +5.25V digital supply.
The MAX1165/MAX1166 use an internal 4.096V refer-
ence or an external reference. The MAX1165/MAX1166
consume only 1.8mA at a sampling rate of 165ksps with
external reference and 2.7mA with internal reference.
AutoShutdownTM reduces supply current to 0.1mA at
10ksps.
The MAX1165/MAX1166 are ideal for high-perfor-
mance, battery-powered, data-acquisition applications.
Excellent dynamic performance and low power con-
sumption in a small package make the MAX1165/
MAX1166 ideal for circuits with demanding power con-
sumption and space requirements.
The 16-bit wide MAX1165 is available in a 28-pin
TSSOP package and the byte wide MAX1166 is avail-
able in a 20-pin TSSOP package. Both devices are
available in either the 0C to +70C commercial, or the
-40C to +85C extended temperature range.
AutoShutdown is a trademark of Maxim Integrated Products, Inc.
Applications
Temperature Sensor/Monitor
Industrial Process Control
I/O Boards
Data-Acquisition Systems
Cable/Harness Tester
Accelerometer Measurements
Digital Signal Processing
Features
o 16-Bit Wide (MAX1165) and Byte Wide (MAX1166)
Parallel Interface
o High Speed: 165ksps Sample Rate
o Accurate: 2LSB INL, 16 Bit No Missing Codes
o 4.096V, 35ppm/C Internal Reference
o External Reference Range: +3.8V to +5.25V
o Single +4.75V to +5.25V Analog Supply Voltage
o +2.7V to +5.25V Digital Supply Voltage
o Low Supply Current
1.8mA (External Reference)
2.7mA (Internal Reference)
0.1A (10ksps, External Reference)
o Small Footprint
28-Pin TSSOP Package (16-Bit Wide)
20-Pin TSSOP Package (Byte Wide)
MAX1165/MAX1166
Low-Power, 16-Bit Analog-to-Digital Converters
with Parallel Interface
________________________________________________________________ Maxim Integrated Products
1
Ordering Information
MAX1165
0.1
F
0.1
F
+5V ANALOG
+5V DIGITAL
ANALOG INPUT
AIN
R/C
CS
EOC
REF
D0D15
REFADJ
RESET
AGND
DGND
0.1
F
4.7
F
P DATA
BUS
AV
DD
DV
DD
Typical Operating Circuit
19-2551; Rev 0; 6/02
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
Pin Configurations appear at end of data sheet.
Functional Diagram appears at end of data sheet.
PART
TEMP RANGE
PIN-PACKAGE
INL
MAX1165ACUI*
0C to +70C
28 TSSOP
2
MAX1165BCUI
0C to +70C
28 TSSOP
2
MAX1165CCUI
0C to +70C
28 TSSOP
4
MAX1165AEUI*
-40C to +85C
28 TSSOP
2
MAX1165BEUI*
-40C to +85C
28 TSSOP
2
MAX1165CEUI*
-40C to +85C
28 TSSOP
4
*Future product--contact factory for availability.
Ordering Information continued at end of data sheet.
MAX1165/MAX1166
Low-Power, 16-Bit Analog-to-Digital Converter
with Parallel Interface
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(AV
DD
= DV
DD
= +5V, external reference = +4.096V, C
REF
= 4.7F, C
REFADJ
= 0.1F, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
Typical values are at T
A
= +25C.)
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.
AV
DD
to AGND .........................................................-0.3V to +6V
DV
DD
to DGND ........................................-0.3V to (AV
DD
+ 0.3V)
AGND to DGND.....................................................-0.3V to +0.3V
AIN, REF, REFADJ to AGND....................-0.3V to (AV
DD
+ 0.3V)
CS, HBEN, R/C, RESET to DGND ............................-0.3V to +6V
Digital Output (D15D0, EOC)
to DGND ..............................................-0.3V to (DV
DD
+ 0.3V)
Maximum Continuous Current Into Any Pin ........................50mA
Continuous Power Dissipation (T
A
= +70C)
20-Pin TSSOP (derate 10.9mW/C above+70C) ........879mW
28-Pin TSSOP (derate 12.8mW/C above +70C) .....1026mW
Operating Temperature Ranges
MAX116_ _CU_ ...................................................0C to +70C
MAX116_ _EU_ ................................................-40C to +85C
Storage Temperature Range .............................-65C to +150C
Junction Temperature ......................................................+150C
Lead Temperature (soldering, 10s) .................................+300C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DC ACCURACY
Resolution
N
16
Bits
MAX116_A
2
MAX116_B
2
Relative Accuracy
(Note 1)
INL
MAX116_C
4
LSB
MAX116_A
1
No missing codes
over temperature
MAX116_B
-1
1.5
Differential Nonlinearity
DNL
MAX116_C
2
LSB
RMS noise, external reference, includes
quantization noise
0.65
LSB
RMS
Transition Noise
Internal reference
0.7
LSB
RMS
Offset Error
0.05
1
mV
Gain Error
(Note 2)
0.002
0.02
%FSR
Offset Drift
0.6
ppm/C
Gain Drift
0.2
ppm/C
DYNAMIC PERFORMANCE (f
IN(SINE-WAVE)
= 1kHz, V
IN
= 4.096V
P-P
, 165ksps)
Signal-to-Noise Plus Distortion
SINAD
86
90
dB
Signal-to-Noise Ratio
SNR
87
90
dB
Total Harmonic Distortion
THD
-102
-90
dB
Spurious-Free Dynamic Range
SFDR
92
105
dB
Full-Power Bandwidth
-3dB point
4
MHz
Full-Linear Bandwidth
SINAD > 81dB
33
kHz
CONVERSION RATE
Sample Rate
f
SAMPLE
165
ksps
Aperture Delay
27
ns
Aperture Jitter
<100
ps
ANALOG INPUT
Input Range
V
AIN
0
V
REF
V
Input Capacitance
C
AIN
40
pF
MAX1165/MAX1166
Low-Power, 16-Bit Analog-to-Digital Converter
with Parallel Interface
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(AV
DD
= DV
DD
= +5V, external reference = +4.096V, C
REF
= 4.7F, C
REFADJ
= 0.1F, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
Typical values are at T
A
= +25C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
INTERNAL REFERENCE
REF Output Voltage
V
REF
4.056
4.096
4.136
V
REF Output Tempco
TC
REF
25
ppm/C
REF Short-Circuit Current
I
REFSC
10
mA
Capacitive Bypass at REFADJ
C
REFADJ
0.1
F
Capacitive Bypass at REF
C
REF
1
F
REFADJ Input Leakage Current
I
REFADJ
20
A
EXTERNAL REFERENCE
REFADJ Buffer Disable Threshold
To power down the internal reference
AV
DD
-
0.4
AV
DD
-
0.1
V
REF Input Voltage Range
Internal reference disabled
3.8
AV
DD
V
V
REF
= +4.096V, f
SAMPLE
= 165ksps
50
120
REF Input Current
I
REF
Shutdown mode
0.1
A
DIGITAL INPUTS/OUTPUTS
Input High Voltage
V
IH
0.7
DV
DD
V
Input Low Voltage
V
IL
0.3
DV
DD
V
Input Leakage Current
I
IN
V
IH
= 0 or DV
DD
0.1
1
A
Input Hysteresis
V
HYST
0.1
V
Input Capacitance
C
IN
15
pF
Output High Voltage
V
OH
I
SOURCE
= 0.5mA, DV
DD
= +2.7V to +5.25V,
AV
DD
= +5.25V
DV
DD
-
0.4
V
Output Low Voltage
V
OL
I
SINK
= 1.6mA, DV
DD
= +2.7V to +5.25V,
AV
DD
= +5.25V
0.4
V
Three-State Leakage Current
I
OZ
D0D15
0.1
10
A
Three-State Output Capacitance
C
OZ
15
pF
POWER REQUIREMENTS
Analog Supply Voltage
AV
DD
4.75
5.25
V
Digital Supply
DV
DD
2.7
AV
DD
V
165ksps
2.7
3.2
100ksps
2.0
10ksps
1.0
Internal reference
1ksps
1.0
165ksps
1.8
2.3
100ksps
1.1
10ksps
0.1
Analog Supply Current
I
AVDD
External reference
1ksps
0.01
mA
MAX1165/MAX1166
Low-Power, 16-Bit Analog-to-Digital Converter
with Parallel Interface
4
_______________________________________________________________________________________
Note 1: Relative accuracy is the deviation of the analog value at any code from its theoretical value after offset and gain errors have
been removed.
Note 2: Offset nulled.
Note 3: Shutdown supply currents are typically 0.5A, maximum specification is limited by automated test equipment.
Note 4: Defined as the change in positive full scale caused by a 5% variation in the nominal supply.
Note 5: To ensure best performance, finish reading the data and wait t
BR
before starting a new acquisition.
ELECTRICAL CHARACTERISTICS (continued)
(AV
DD
= DV
DD
= +5V, external reference = +4.096V, C
REF
= 4.7F, C
REFADJ
= 0.1F, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
Typical values are at T
A
= +25C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
165ksps
0.5
0.7
100ksps
0.3
10ksps
0.03
Digital Supply Current
I
DVDD
D0D15 = all zeros
1ksps
0.003
mA
I
AVDD
0.5
5
Full power-down
I
DVDD
0.5
5
A
I
AVDD
1.0
1.2
mA
Shutdown Supply Current
I
SHDN
REF and REF buffer enabled
(standby mode)
I
DVDD
(Note 3)
0.5
5
A
Power-Supply Rejection Ratio
PSRR
AV
DD
= +5V 5%, full-scale input (Note 4)
68
dB
TIMING CHARACTERISTICS (Figures 1 and 2)
(AV
DD
= +4.75V to +5.25V, DV
DD
= +2.7V to AV
DD
, external reference = +4.096V, C
REF
= 4.7F, C
REFADJ
= 0.1F, C
LOAD
= 20pF,
T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Acquisition Time
t
ACQ
1.1
Conversion Time
t
CONV
4.7
s
CS Pulse Width High
t
CSH
(Note 5)
40
ns
V
DVDD
= 4.75V to 5.25V
40
CS Pulse Width Low (Note 5)
t
CSL
V
DVDD
= 2.7V to 5.25V
60
ns
R/C to CS Fall Setup Time
t
DS
0
ns
V
DVDD
= 4.75V to 5.25V
40
R/C to CS Fall Hold Time
t
DH
V
DVDD
= 2.7V to 5.25V
60
ns
V
DVDD
= 4.75V to 5.25V
40
CS to Output Data Valid
t
DO
V
DVDD
= 2.7V to 5.25V
80
ns
V
DVDD
= 4.75V to 5.25V
40
HBEN Transition to Output Data
Valid (MAX1166 Only)
t
DO1
V
DVDD
= 2.7V to 5.25V
80
ns
EOC Fall to CS Fall
t
DV
0
ns
V
DVDD
= 4.75V to 5.25V
40
CS Rise to EOC Rise
t
EOC
V
DVDD
= 2.7V to 5.25V
80
ns
V
DVDD
= 4.75V to 5.25V
40
Bus Relinquish Time (Note 5)
t
BR
V
DVDD
= 2.7V to 5.25V
80
ns
MAX1165/MAX1166
Low-Power, 16-Bit Analog-to-Digital Converter
with Parallel Interface
_______________________________________________________________________________________
5
INL vs. OUTPUT CODE
MAX1165/66 toc01
OUTPUT CODE
INL (LSB)
49152
16384
32768
-1.5
-1.0
-0.5
0
0.5
1.0
1.5
2.0
-2.0
0
65536
DNL vs. OUTPUT CODE
MAX1165/66 toc02
OUTPUT CODE
DNL (LSB)
49152
16384
32768
0
66536
-1.5
-1.0
-0.5
0
0.5
1.0
1.5
2.0
-2.0
IAV
DD
+ IDV
DD
SUPPLY CURRENT
vs. SAMPLE RATE
MAX1165/66 toc03
SAMPLE RATE (ksps)
SUPPLY CURRENT (mA)
100
10
1
0.1
0.001
0.01
0.1
1
10
0.0001
0.01
1000
IAV
DD
+ IDV
DD
SUPPLY CURRENT
vs. TEMPERATURE
MAX1165/66 toc04
TEMPERATURE (
C)
SUPPLY CURRENT (mA)
60
40
20
0
-20
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0
-40
80
SAMPLE RATE = 165ksps
IAV
DD
+ IDV
DD
SHUTDOWN CURRENT
vs. TEMPERATURE
MAX1165/66 toc05
TEMPERATURE (
C)
SHUTDOWN CURRENT (
A)
60
40
20
0
-20
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0
-40
80
INTERNAL REFERENCE
vs. TEMPERATURE
MAX1165/66 toc06
TEMPERATURE (
C)
INTERNAL REFERENCE (V)
60
40
-20
0
20
4.066
4.076
4.086
4.096
4.106
4.116
4.126
4.136
4.056
-40
80
Typical Operating Characteristics
(AV
DD
= DV
DD
= +5V, external reference = +4.096V, C
REF
= 4.7F, C
REFADJ
= 0.1F, T
A
= +25C, unless otherwise noted.)
OFFSET ERROR
vs. TEMPERATURE
MAX1165/66 toc07
TEMPERATURE (
C)
OFFSET ERROR (
V)
60
40
20
0
-20
-800
-600
-400
-200
0
200
400
600
800
1000
-1000
-40
80
GAIN ERROR
vs. TEMPERATURE
MAX1165/66 toc08
TEMPERATURE (
C)
GAIN ERROR (%FSR)
60
40
-20
0
20
-0.015
-0.010
-0.005
0
0.005
0.010
0.015
0.020
-0.020
-40
80
SINAD vs. FREQUENCY
MAX1165/66 toc09
FREQUENCY (kHz)
SINAD (dB)
10
1
10
20
30
40
50
60
70
80
90
100
0
0.1
100
SAMPLE RATE = 165ksps
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