19-4561; Rev 3; 2/11
KIT
ATION
EVALU
BLE
AVAILA
Low-Power, 4-/8-/12-Channel, I
2
C,
12-Bit ADCs in Ultra-Small Packages
General Description
The MAX11612–MAX11617 low-power, 12-bit, multi-
channel analog-to-digital converters (ADCs) feature
internal track/hold (T/H), voltage reference, clock, and an
I
2
C-compatible 2-wire serial interface. These devices
operate from a single supply of 2.7V to 3.6V
(MAX11613/MAX11615/MAX11617) or 4.5V to 5.5V
(MAX11612/MAX11614/MAX11616) and require only
670µA at the maximum sampling rate of 94.4ksps.
Supply current falls below 230µA for sampling rates
under 46ksps. AutoShutdown™ powers down the
devices between conversions, reducing supply current
to less than 1µA at low throughput rates. The
MAX11612/MAX11613 have 4 analog input channels
each, the MAX11614/MAX11615 have 8 analog input
channels each, while the MAX11616/MAX11617 have
12 analog input channels each. The fully differential
analog inputs are software configurable for unipolar or
bipolar, and single-ended or differential operation.
The full-scale analog input range is determined by the
internal reference or by an externally applied reference
voltage ranging from 1V to V
DD
. The MAX11613/
MAX11615/MAX11617 feature a 2.048V internal refer-
ence and the MAX11612/MAX11614/MAX11616 feature
a 4.096V internal reference.
The MAX11612/MAX11613 are available in an 8-pin
µMAX
®
package and the MAX11613 is available in an
ultra-small, 1.9mm x 2.2mm, 12-bump wafer-level pack-
age (WLP). The MAX11614–MAX11617 are available in a
16-pin QSOP package. The MAX11612–MAX11617 are
guaranteed over the extended temperature range (-40°C
to +85°C). For pin-compatible 10-bit parts, refer to the
MAX11606–MAX11611 data sheet. For pin-compatible 8-
bit parts, refer to the MAX11600–MAX11605 data sheet.
Features
o
High-Speed I
2
C-Compatible Serial Interface
400kHz Fast Mode
1.7MHz High-Speed Mode
o
Single-Supply
2.7V to 3.6V (MAX11613/MAX11615/MAX11617)
4.5V to 5.5V (MAX11612/MAX11614/MAX11616)
o
Ultra-Small Packages
8-Pin
µMAX
(MAX11612/MAX11613)
1.9mm x 2.2mm, 12-Bump WLP (MAX11613)
16-Pin QSOP (MAX11614–MAX11617)
o
Internal Reference
2.048V (MAX11613/MAX11615/MAX11617)
4.096V (MAX11612/MAX11614/MAX11616)
o
External Reference: 1V to V
DD
o
Internal Clock
o
4-Channel Single-Ended or 2-Channel Fully
Differential (MAX11612/MAX11613)
o
8-Channel Single-Ended or 4-Channel Fully
Differential (MAX11614/MAX11615)
o
12-Channel Single-Ended or 6-Channel Fully
Differential (MAX11616/MAX11617)
o
Internal FIFO with Channel-Scan Mode
o
Low Power
670µA at 94.4ksps
230µA at 40ksps
60µA at 10ksps
6µA at 1ksps
0.5µA in Power-Down Mode
o
Software-Configurable Unipolar/Bipolar
MAX11612–MAX11617
Ordering Information
PART
MAX11612EUA+
MAX11613EUA+
MAX11614EEE+
MAX11615EEE+
MAX11616EEE+
MAX11617EEE+
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-
PACKAGE
8 µMAX
8 µMAX
12 WLP
16 QSOP
16 QSOP
16 QSOP
16 QSOP
I
2
C SLAVE
ADDRESS
0110100
0110100
0110100
0110011
0110011
0110101
0110101
Applications
Handheld Portable
Applications
Medical Instruments
Battery-Powered Test
Equipment
Solar-Powered Remote
Systems
Received-Signal-Strength
Indicators
System Supervision
MAX11613EWC+*
-40°C to +85°C
+Denotes
a lead(Pb)-free/RoHs-compliant package.
*Future
product—contact factory for availability.
AutoShutdown is a trademark of Maxim Integrated Products, Inc.
µMAX is a registered trademark of Maxim Integrated Products, Inc.
Pin Configurations, Typical Operating Circuit, and Selector
Guide appear at end of data sheet.
1
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
2.7V to 3.6V and 4.5V to 5.5V, Low-Power,
4-/12-Channel, 2-Wire Serial, 12-Bit ADCs
MAX11612–MAX11617
ABSOLUTE MAXIMUM RATINGS
V
DD
to GND ..............................................................-0.3V to +6V
AIN0–AIN11,
REF to GND ............-0.3V to the lower of (V
DD
+ 0.3V) and 6V
SDA, SCL to GND.....................................................-0.3V to +6V
Maximum Current into Any Pin .........................................±50mA
Continuous Power Dissipation (T
A
= +70°C)
8-Pin µMAX (derate 5.9mW/°C above +70°C) ..........470.6mW
16-Pin QSOP (derate 8.3mW/°C above +70°C)........666.7mW
12-Pin WLP (derate 16.1mW/°C above +70°C) .........1288mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-60°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
= 2.7V to 3.6V (MAX11613/MAX11615/MAX11617), V
DD
= 4.5V to 5.5V (MAX11612/MAX11614/MAX11616), V
REF
= 2.048V
(MAX11613/MAX11615/MAX11617), V
REF
= 4.096V (MAX11612/MAX11614/MAX11616), f
SCL
= 1.7MHz, T
A
= T
MIN
to T
MAX
, unless
otherwise noted. Typical values are at T
A
= +25°C, see Tables 1–5 for programming notation.) (Note 1)
PARAMETER
DC ACCURACY (Note 2)
Resolution
Relative Accuracy
Differential Nonlinearity
Offset Error
Offset-Error Temperature
Coefficient
Gain Error
Gain-Temperature Coefficient
Channel-to-Channel Offset
Matching
Channel-to-Channel Gain
Matching
DYNAMIC PERFORMANCE (f
IN(SINE-WAVE)
= 10kHz, V
IN(P-P)
= V
REF
, f
SAMPLE
= 94.4ksps)
Signal-to-Noise Plus Distortion
Total Harmonic Distortion
Spurious-Free Dynamic Range
Full-Power Bandwidth
Full-Linear Bandwidth
CONVERSION RATE
Conversion Time (Note 5)
t
CONV
Internal clock
External clock
10.6
7.5
µs
SINAD
THD
SFDR
SINAD > 68dB
-3dB point
Up to the 5th harmonic
70
-78
78
3
5
dB
dB
dB
MHz
MHz
Relative to FSR
(Note 4)
Relative to FSR
0.3
±0.1
±0.1
0.3
±4
INL
DNL
(Note 3)
No missing codes over temperature
12
±1
±1
±4
Bits
LSB
LSB
LSB
ppm/°C
LSB
ppm/°C
LSB
LSB
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
2
_______________________________________________________________________________________
Low-Power, 4-/8-/12-Channel, I
2
C,
12-Bit ADCs in Ultra-Small Packages
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= 2.7V to 3.6V (MAX11613/MAX11615/MAX11617), V
DD
= 4.5V to 5.5V (MAX11612/MAX11614/MAX11616), V
REF
= 2.048V
(MAX11613/MAX11615/MAX11617), V
REF
= 4.096V (MAX11612/MAX11614/MAX11616), f
SCL
= 1.7MHz, T
A
= T
MIN
to T
MAX
, unless
otherwise noted. Typical values are at T
A
= +25°C, see Tables 1–5 for programming notation.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
Internal clock, SCAN[1:0] = 01
Throughput Rate
f
SAMPLE
Internal clock, SCAN[1:0] = 00
CS[3:0] = 1011 (MAX11616/MAX11617)
External clock
Track/Hold Acquisition Time
Internal Clock Frequency
Aperture Delay (Note 6)
ANALOG INPUT (AIN0–AIN11)
Input-Voltage Range, Single-
Ended and Differential (Note 7)
Input Multiplexer Leakage Current
Input Capacitance
INTERNAL REFERENCE (Note 8)
Reference Voltage
Reference-Voltage Temperature
Coefficient
REF Short-Circuit Current
REF Source Impedance
EXTERNAL REFERENCE
REF Input-Voltage Range
REF Input Current
Input-High Voltage
Input-Low Voltage
Input Hysteresis
Input Current
Input Capacitance
Output Low Voltage
V
REF
I
REF
V
IH
V
IL
V
HYST
I
IN
C
IN
V
OL
I
SINK
= 3mA
V
IN
= 0 to V
DD
15
0.4
0.1 x V
DD
±10
(Note 9)
f
SAMPLE
= 94.4ksps
0.7 x V
DD
0.3 x V
DD
1
V
DD
40
V
µA
V
V
V
µA
pF
V
1.5
V
REF
TCV
REF
T
A
= +25°C
MAX11613/MAX11615/MAX11617
MAX11612/MAX11614/MAX11616
1.968
3.936
2.048
4.096
25
2
2.128
4.256
V
ppm/°C
mA
kΩ
C
IN
Unipolar
Bipolar
ON/OFF leakage current, V
AIN
_ = 0 or V
DD
0
0
±0.01
22
V
REF
±V
REF
/2
±1
V
µA
pF
t
AD
External clock, fast mode
External clock, high-speed mode
800
2.8
60
30
MIN
TYP
51
51
94.4
ns
MHz
ns
ksps
MAX
UNITS
MAX11612–MAX11617
DIGITAL INPUTS/OUTPUTS (SCL, SDA)
_______________________________________________________________________________________
3
Low-Power, 4-/8-/12-Channel, I
2
C,
12-Bit ADCs in Ultra-Small Packages
MAX11612–MAX11617
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= 2.7V to 3.6V (MAX11613/MAX11615/MAX11617), V
DD
= 4.5V to 5.5V (MAX11612/MAX11614/MAX11616), V
REF
= 2.048V
(MAX11613/MAX11615/MAX11617), V
REF
= 4.096V (MAX11612/MAX11614/MAX11616), f
SCL
= 1.7MHz, T
A
= T
MIN
to T
MAX
, unless
otherwise noted. Typical values are at T
A
= +25°C, see Tables 1–5 for programming notation.) (Note 1)
PARAMETER
POWER REQUIREMENTS
Supply Voltage
V
DD
MAX11613/MAX11615/MAX11617
MAX11612/MAX11614/MAX11616
f
SAMPLE
= 94.4ksps
external clock
f
SAMPLE
= 40ksps
internal clock
Supply Current
I
DD
f
SAMPLE
= 10ksps
internal clock
f
SAMPLE
=1ksps
internal clock
Power-Supply Rejection Ratio
PSRR
Full-scale input (Note 10)
Internal reference
External reference
Internal reference
External reference
Internal reference
External reference
Internal reference
External reference
2.7
4.5
900
670
530
230
380
60
330
6
0.5
±0.5
10
±2.0
LSB/V
µA
3.6
5.5
1150
900
V
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Shutdown (internal REF off)
TIMING CHARACTERISTICS (Figure 1)
(V
DD
= 2.7V to 3.6V (MAX11613/MAX11615/MAX11617), V
DD
= 4.5V to 5.5V (MAX11612/MAX11614/MAX11616), V
REF
= 2.048V
(MAX11613/MAX11615/MAX11617), V
REF
= 4.096V (MAX11612/MAX11614/MAX11616), f
SCL
= 1.7MHz, T
A
= T
MIN
to T
MAX
, unless
otherwise noted. Typical values are at T
A
= +25°C, see Tables 1–5 for programming notation.) (Note 1)
PARAMETER
Serial-Clock Frequency
Bus Free Time Between a STOP (P)
and a START (S) Condition
Hold Time for START (S) Condition
Low Period of the SCL Clock
High Period of the SCL Clock
Setup Time for a Repeated START
Condition (Sr)
Data Hold Time (Note 11)
Data Setup Time
Rise Time of Both SDA and SCL
Signals, Receiving
Fall Time of SDA Transmitting
Setup Time for STOP (P) Condition
Capacitive Load for Each Bus Line
Pulse Width of Spike Suppressed
SYMBOL
f
SCL
t
BUF
t
HD, STA
t
LOW
t
HIGH
t
SU, STA
t
HD, DAT
t
SU, DAT
t
R
t
F
t
SU, STO
C
B
t
SP
Measured from 0.3V
DD
- 0.7V
DD
Measured from 0.3V
DD
- 0.7V
DD
(Note 12)
1.3
0.6
1.3
0.6
0.6
0
100
20 + 0.1C
B
20 + 0.1C
B
0.6
400
50
300
300
900
CONDITIONS
MIN
TYP
MAX
400
UNITS
kHz
µs
µs
µs
µs
µs
ns
ns
ns
ns
µs
pF
ns
TIMING CHARACTERISTICS FOR FAST MODE
4
_______________________________________________________________________________________
Low-Power, 4-/8-/12-Channel, I
2
C,
12-Bit ADCs in Ultra-Small Packages
TIMING CHARACTERISTICS (Figure 1) (continued)
(V
DD
= 2.7V to 3.6V (MAX11613/MAX11615/MAX11617), V
DD
= 4.5V to 5.5V (MAX11612/MAX11614/MAX11616), V
REF
= 2.048V
(MAX11613/MAX11615/MAX11617), V
REF
= 4.096V (MAX11612/MAX11614/MAX11616), f
SCL
= 1.7MHz, T
A
= T
MIN
to T
MAX
, unless
otherwise noted. Typical values are at T
A
= +25°C, see Tables 1–5 for programming notation.) (Note 1)
PARAMETER
Serial-Clock Frequency
Hold Time, Repeated START
Condition (Sr)
Low Period of the SCL Clock
High Period of the SCL Clock
Setup Time for a Repeated START
Condition (Sr)
Data Hold Time
Data Setup Time
Rise Time of SCL Signal
(Current Source Enabled)
Rise Time of SCL Signal After
Acknowledge Bit
Fall Time of SCL Signal
Rise Time of SDA Signal
Fall Time of SDA Signal
Setup Time for STOP (P) Condition
Capacitive Load for Each Bus Line
Pulse Width of Spike Suppressed
SYMBOL
f
SCLH
t
HD, STA
t
LOW
t
HIGH
t
SU
,
STA
t
HD
,
DAT
t
SU
,
DAT
t
RCL
t
RCL1
t
FCL
t
RDA
t
FDA
t
SU
,
STO
C
B
t
SP
(Notes 11 and 14)
0
Measured from 0.3V
DD
- 0.7V
DD
Measured from 0.3V
DD
- 0.7V
DD
Measured from 0.3V
DD
- 0.7V
DD
Measured from 0.3V
DD
- 0.7V
DD
(Note 12)
(Note 11)
(Note 14)
160
320
120
160
0
10
20
20
20
20
20
160
400
10
80
160
80
160
160
150
CONDITIONS
MIN
TYP
MAX
1.7
UNITS
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
pF
ns
TIMING CHARACTERISTICS FOR HIGH-SPEED MODE (C
B
= 400pF, Note 13)
MAX11612–MAX11617
Note 1:
All WLP devices are 100% production tested at T
A
= +25°C. Specifications over temperature limits are guaranteed by
design and characterization.
Note 2:
For DC accuracy, the MAX11612/MAX11614/MAX11616 are tested at V
DD
= 5V and the
MAX11613/MAX11615/MAX11617are tested at V
DD
= 3V. All devices are configured for unipolar, single-ended inputs.
Note 3:
Relative accuracy is the deviation of the analog value at any code from its theoretical value after the full-scale range and
offsets have been calibrated.
Note 4:
Offset nulled.
Note 5:
Conversion time is defined as the number of clock cycles needed for conversion multiplied by the clock period. Conversion
time does not include acquisition time. SCL is the conversion clock in the external clock mode.
Note 6:
A filter on the SDA and SCL inputs suppresses noise spikes and delays the sampling instant.
Note 7:
The absolute input-voltage range for the analog inputs (AIN0–AIN11) is from GND to V
DD
.
Note 8:
When the internal reference is configured to be available at AIN_/REF (SEL[2:1] = 11), decouple AIN_/REF to GND with a
0.1µF capacitor and a 2kΩ series resistor (see the
Typical Operating Circuit).
Note 9:
ADC performance is limited by the converter’s noise floor, typically 300µV
P-P
.
Note 10:
Measured as for the MAX11613/MAX11615/MAX11617:
_______________________________________________________________________________________
5
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