19-5106; Rev 2; 1/11
KIT
ATION
EVALU
BLE
AVAILA
4-/6-/8-Channel, 16-/14-Bit,
Simultaneous-Sampling ADCs
General Description
Features
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
16-Bit ADC (MAX11047/MAX11048/MAX11049)
14-Bit ADC (MAX11057/MAX11058/MAX11059)
4-Channel ADC (MAX11047/MAX11057)
6-Channel ADC (MAX11048/MAX11058)
8-Channel ADC (MAX11049/MAX11059)
Single Analog and Digital Supply
High-Impedance Inputs Up to 1GΩ
On-Chip T/H Circuit for Each Channel
Fast 3µs Conversion Time
High Throughput: 250ksps for Each Channel
16-/14-Bit, High-Speed, Parallel Interface
Internal Clocked Conversions
10ns Aperture Delay
100ps Channel-to-Channel T/H Matching
Low Drift, Accurate 4.096V Internal Reference
Providing an Input Range of 0 to 5V
o
External Reference Range of 3.0V to 4.25V,
Allowing Full-Scale Input Ranges of +3.7V to
+5.2V
o
56-Pin TQFN (8mm x 8mm) and 64-Pin TQFP
(10mm x 10mm) Packages
o
Evaluation Kit Available (MAX11046EVKIT+)
MAX11047–MAX11049/MAX11057–MAX11059
The MAX11047/MAX11048/MAX11049 and MAX11057/
MAX11058/MAX11059 16-bit/14-bit ADCs offer 4, 6, or 8
independent input channels. Featuring independent track
and hold (T/H) and SAR circuitry, these parts provide
simultaneous sampling at 250ksps for each channel.
The devices accept a 0 to +5V input. All inputs are
overrange protected with internal ±20mA input clamps
providing overrange protection with a simple external
resistor. Other features include a 4MHz T/H input band-
width, internal clock, and internal or external reference.
A 20MHz, bidirectional, parallel interface provides the
conversion results and accepts digital configuration
inputs.
The devices operate with a 4.75V to 5.25V analog supply
and a separate flexible 2.7V to 5.25V digital supply for
interfacing with the host without a level shifter. The
MAX11047/MAX11048/MAX11049 are available in a 56-pin
TQFN and 64-pin TQFP packages while the MAX11057/
MAX11058/MAX11059 are available in TQFP only. All
devices operate over the extended -40°C to +85°C tem-
perature range.
Applications
Automatic Test Equipment
Power-Factor Monitoring and Correction
Power-Grid Protection
Multiphase Motor Control
Vibration and Waveform Analysis
Functional Diagram
AVDD
DVDD
DB15**
Ordering Information
PART
MAX11047ETN+
MAX11047ECB+
MAX11048ETN+
MAX11048ECB+
MAX11049ETN+
MAX11049ECB+
MAX11057ECB+
MAX11058ECB+
MAX11059ECB+
PIN-PACKAGE
56 TQFN-EP*
64 TQFP-EP*
56 TQFN-EP*
64 TQFP-EP*
56 TQFN-EP*
64 TQFP-EP*
64 TQFP-EP*
64 TQFP-EP*
64 TQFP-EP*
CHANNELS
4
4
6
6
8
8
4
6
8
REFIO
BANDGAP
REFERENCE
10kΩ
AGND
MAX11047/MAX11048/MAX11049/
MAX11057/MAX11058/MAX11059
INT REF
REF
BUF
EXT REF
AGNDS
CH7
†
CLAMP
S/H
16-/14-BIT ADCs
BIDIRECTIONAL DRIVERS
CLAMP
S/H
16-/14-BIT ADCs
8 x 16-/14-BIT REGISTERS
CH0
DB4
DB3/CR3
DB0/CR0
CONFIGURATION
REGISTERS
INTERFACE
AND
CONTROL
WRb
RDb
CSb
CONVST
SHDN
EOCb
DGND
RDC
RDC_SENSE*
Note:
All devices are specified over the -40°C to +85°C operating
temperature range.
+Denotes
a lead(Pb)-free/RoHS-compliant package.
*EP
= Exposed pad.
*CONNECTED INTERNALLY ON THE TQFN PARTS
**MAX11047/MAX11048/MAX11049
†
MAX11049/MAX11059
________________________________________________________________
Maxim Integrated Products
1
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.
4-/6-/8-Channel, 16-/14-Bit,
Simultaneous-Sampling ADCs
MAX11047–MAX11049/MAX11057–MAX11059
ABSOLUTE MAXIMUM RATINGS
AVDD to AGND ........................................................-0.3V to +6V
DVDD to AGND and DGND .....................................-0.3V to +6V
DGND to AGND.....................................................-0.3V to +0.3V
AGNDS to AGND...................................................-0.3V to +0.3V
CH0–CH7 to AGND ...............................................-2.5V to +7.5V
REFIO, RDC to AGND ..................................-0.3V to the lower of
(AVDD + 0.3V) and +6V
EOC, WR, RD, CS,
CONVST to AGND.........-0.3V to the lower of
(DVDD + 0.3V) and +6V
DB0–DB15 to AGND ....................................-0.3V to the lower of
(DVDD + 0.3V) and +6V
Maximum Current into Any Pin Except AVDD, DVDD, AGND,
DGND ...........................................................................±50mA
Continuous Power Dissipation (T
A
= +70°C)
56-Pin TQFN (derated 47.6mW/°C above +70°C) ..3809.5mW
64-Pin TQFP (derate 43.5mW/°C above +70°C .........3478mW
Operating Temperature Range ...........................-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
AVDD
= 4.75V to 5.25V, V
DVDD
= +2.7V to 5.25V, V
AGNDS
= V
AGND
= V
DGND
= 0V, V
REFIO
= internal reference, C
RDC
= 4 x 33µF,
C
REFIO
= 0.1µF, C
AVDD
= 4 x 0.1µF || 10µF, C
DVDD
= 3 x 0.1µF || 10µF; all digital inputs at DVDD or DGND, unless otherwise noted.
T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
STATIC PERFORMANCE (Note 1)
Resolution
Integral Nonlinearity
N
INL
MAX11047/MAX11048/MAX11049
MAX11057/MAX11058/MAX11059
MAX11047/MAX11048/MAX11049
MAX11057/MAX11058/MAX11059
Differential Nonlinearity
DNL
MAX11047/MAX11048/MAX11049
MAX11057/MAX11058/MAX11059
No Missing Codes
Offset Error
Offset Temperature Coefficient
Channel Offset Matching
Gain Error
Positive Full-Scale Error
Positive Full-Scale Error Matching
Channel Gain-Error Matching
Gain Temperature Coefficient
DYNAMIC PERFORMANCE
MAX11047/MAX11048/MAX11049,
f
IN
= 10kHz, full-scale input
MAX11057/MAX11058/MAX11059,
f
IN
= 10kHz, full-scale input
90.7
84.5
92.3
dB
85.3
Between all channels
±0.6
MAX11047/MAX11048/MAX11049
MAX11057/MAX11058/MAX11059
16
14
-2
-0.9
> -1
-0.6
16
14
±0.001
±0.8
±0.01
±0.012
±0.017
±0.01
±0.01
±0.012
±0.65
±0.2
±0.7
±0.2
+2
+0.9
< +1.2
+0.7
Bits
%FSR
µV/°C
%FSR
%FSR
%FSR
%FSR
%FSR
ppm/°C
LSB
Bits
LSB
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Signal-to-Noise Ratio
SNR
2
_______________________________________________________________________________________
4-/6-/8-Channel, 16-/14-Bit,
Simultaneous-Sampling ADCs
ELECTRICAL CHARACTERISTICS (continued)
V
AVDD
= 4.75V to 5.25V, V
DVDD
= +2.7V to 5.25V, V
AGNDS
= V
AGND
= V
DGND
= 0V, V
REFIO
= internal reference, C
RDC
= 4 x 33µF,
C
REFIO
= 0.1µF, C
AVDD
= 4 x 0.1µF || 10µF, C
DVDD
= 3 x 0.1µF || 10µF; all digital inputs at DVDD or DGND, unless otherwise noted.
T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
Signal-to-Noise and Distortion
Ratio
SYMBOL
CONDITIONS
MAX11047/MAX11048/MAX11049,
f
IN
= 10kHz, full-scale input
MAX11057/MAX11058/MAX11059,
f
IN
= 10kHz, full-scale input
MAX11047/MAX11048/
f
IN
= 10kHz,
MAX11049
full-scale input MAX11057/MAX11058/
MAX11059
MAX11047/MAX11048/
f
IN
= 10kHz,
MAX11049
full-scale input MAX11057/MAX11058/
MAX11059
f
IN
= 60Hz, full scale and ground on
adjacent channel (Note 2)
MIN
90.5
84.5
98
95
TYP
92
dB
85.2
108
dB
108
-108
-108
-126
-98
dB
-95
-100
dB
MAX
UNITS
MAX11047–MAX11049/MAX11057–MAX11059
SINAD
Spurious-Free Dynamic Range
SFDR
Total Harmonic Distortion
THD
Channel-to-Channel Crosstalk
ANALOG INPUTS (CH0–CH7)
Input Voltage Range
Input Leakage Current
Input Capacitance
Input-Clamp Protection Current
TRACK AND HOLD
Throughput Rate
Acquisition Time
Full-Power Bandwidth
Aperture Delay
Aperture-Delay Matching
Aperture Jitter
INTERNAL REFERENCE
REFIO Voltage
REFIO Temperature Coefficient
EXTERNAL REFERENCE
Input Current
REF Voltage Input Range
REF Input Capacitance
V
REF
V
REF
t
ACQ
(Note 3)
0
-1
15
1.22 x
V
REFIO
+1
+20
250
V
µA
pF
mA
ksps
µs
Each input simultaneously
Per channel
-20
1
-3dB point
-0.1dB point
4
> 0.2
10
100
50
4.080
4.096
±4
-10
3.00
15
+10
4.25
4.112
MHz
ns
ps
ps
RMS
V
ppm/°C
µA
V
pF
V
0.8
V
pF
±10
µA
DIGITAL INPUTS (CR0–CR3,
RD, WR, CS,
CONVST)
Input-Voltage High
Input-Voltage Low
Input Capacitance
Input Current
V
IH
V
IL
C
IN
I
IN
V
IN
= 0 or V
DVDD
V
DVDD
= 2.7V to 5.25V
V
DVDD
= 2.7V to 5.25V
10
2
_______________________________________________________________________________________
3
4-/6-/8-Channel, 16-/14-Bit,
Simultaneous-Sampling ADCs
MAX11047–MAX11049/MAX11057–MAX11059
ELECTRICAL CHARACTERISTICS (continued)
V
AVDD
= 4.75V to 5.25V, V
DVDD
= +2.7V to 5.25V, V
AGNDS
= V
AGND
= V
DGND
= 0V, V
REFIO
= internal reference, C
RDC
= 4 x 33µF,
C
REFIO
= 0.1µF, C
AVDD
= 4 x 0.1µF || 10µF, C
DVDD
= 3 x 0.1µF || 10µF; all digital inputs at DVDD or DGND, unless otherwise noted.
T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
V
DVDD
-
0.4
0.4
V
IH
or V
CS
V
IH
or V
CS
V
IH
V
IH
4.75
2.70
V
DVDD
= 3.3V (Note 4)
For DVDD
For AVDD
PSR
V
AVDD
= 4.9V to 5.1V
(Note 5)
MAX11047
MAX11057
4.75
2.70
V
DVDD
= 3.3V (Note 4)
For DVDD
For AVDD
PSR
V
AVDD
= 4.9V to 5.1V
(Note 5)
MAX11048
MAX11058
4.75
2.70
V
DVDD
= 3.3V (Note 4)
For DVDD
For AVDD
PSR
V
AVDD
= 4.9V to 5.1V
(Note 5)
MAX11049
MAX11059
±1.2
±0.3
3
1
Sample quiet time (Note 6)
500
±1.2
±0.3
5.25
5.25
39
7
10
10
±1.2
±0.3
5.25
5.25
32
6.5
10
10
15
5.25
5.25
25
5.5
10
10
10
TYP
MAX
UNITS
DIGITAL OUTPUTS (DB0–DB15,
EOC)
Output-Voltage High
Output-Voltage Low
Three-State Leakage Current
Three-State Output Capacitance
POWER SUPPLIES (MAX11047/MAX11057)
Analog Supply Voltage
Digital Supply Voltage
Analog Supply Current
Digital Supply Current
Shutdown Current
Shutdown Current
Power-Supply Rejection
AVDD
DVDD
I
AVDD
I
DVDD
V
V
mA
mA
µA
µA
LSB
V
OH
V
OL
I
SOURCE
= 1.2mA
I
SINK
= 1mA
DB0–DB15, V
RD
DB0–DB15, V
RD
V
V
µA
pF
POWER SUPPLIES (MAX11048/MAX11058)
Analog Supply Voltage
Digital Supply Voltage
Analog Supply Current
Digital Supply Current
Shutdown Current
Shutdown Current
Power-Supply Rejection
AVDD
DVDD
I
AVDD
I
DVDD
V
V
mA
mA
µA
µA
LSB
POWER SUPPLIES (MAX11049/MAX11059)
Analog Supply Voltage
Digital Supply Voltage
Analog Supply Current
Digital Supply Current
Shutdown Current
Shutdown Current
Power-Supply Rejection
TIMING CHARACTERISTICS (Note 4)
CONVST Rise to
EOC
Fall
Acquisition Time
CS
Rise to CONVST Rise
t
CON
t
ACQ
t
Q
Conversion time (Note 6)
µs
µs
ns
AVDD
DVDD
I
AVDD
I
DVDD
V
V
mA
mA
µA
µA
LSB
4
_______________________________________________________________________________________
4-/6-/8-Channel, 16-/14-Bit,
Simultaneous-Sampling ADCs
ELECTRICAL CHARACTERISTICS (continued)
V
AVDD
= 4.75V to 5.25V, V
DVDD
= +2.7V to 5.25V, V
AGNDS
= V
AGND
= V
DGND
= 0V, V
REFIO
= internal reference, C
RDC
= 4 x 33µF,
C
REFIO
= 0.1µF, C
AVDD
= 4 x 0.1µF || 10µF, C
DVDD
= 3 x 0.1µF || 10µF; all digital inputs at DVDD or DGND, unless otherwise noted.
T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
CONVST Rise to
EOC
Rise
EOC
Fall to CONVST Fall
CONVST Low Time
CS
Fall to
WR
Fall
WR
Low Time
CS
Rise to
WR
Rise
Input Data Setup Time
Input Data Hold Time
CS
Fall to
RD
Fall
RD
Low Time
RD
Rise to
CS
Rise
RD
High Time
RD
Fall to Data Valid
RD
Rise to Data Hold Time
SYMBOL
t
0
t
1
t
2
t
3
t
4
t
5
t
6
t
7
t
8
t
9
t
10
t
11
t
12
t
13
(Note 7)
5
CONVST mode B0 = 0 only (Note 7)
CONVST mode B0 = 1 only
0
20
0
20
0
10
0
0
30
0
10
35
CONDITIONS
MIN
TYP
65
MAX
140
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MAX11047–MAX11049/MAX11057–MAX11059
Note 1:
Note 2:
Note 3:
Note 4:
See the
Definitions
section at the end of the data sheet.
Tested with alternating channels modulated at full scale and ground.
See the
Input Range and Protection
section.
C
LOAD
= 30pF on DB0–DB15 and
EOC.
Inputs (CH0–CH7) alternate between full scale and zero scale. f
CONV
= 250ksps. All
data is read out.
Note 5:
Defined as the change in positive full scale caused by a ±2% variation in the nominal supply voltage.
Note 6:
It is recommended that
RD, WR,
and
CS
are kept high for the quiet time (t
Q
) and conversion time (t
CON
).
Note 7:
Guaranteed by design.
Typical Operating Characteristics
(V
AVDD
= 5V, V
DVDD
= 3.3V, T
A
= +25°C, f
SAMPLE
= 250ksps, internal reference, unless otherwise noted.)
INTEGRAL NONLINEARITY (INL)
vs. CODE FOR MAX1104_
MAX11047 toc01
DIFFERENTIAL NONLINEARITY (DNL)
vs. CODE FOR MAX1104_
0.8
0.6
0.4
DNL (LSBs)
0.2
0
-0.2
-0.4
-0.6
-0.8
-1.0
0
V
AVDD
= 5.0V
V
DVDD
= 3.3V
f
SAMPLE
= 250ksps
T
A
= +25°C
V
RDC
= 4.096V
16384
32768
49152
65536
8192
24576
40960
57344
OUTPUT CODE (DECIMAL)
MAX11047 toc02
1.0
0.8
0.6
0.4
INL (LSBs)
0.2
0
-0.2
-0.4
-0.6
-0.8
-1.0
0
8192
16384
V
AVDD
= 5.0V
V
DVDD
= 3.3V
f
SAMPLE
= 250ksps
T
A
= +25°C
V
RDC
= 4.096V
32768
49152
24576
40960
OUTPUT CODE (DECIMAL)
1.0
65536
57344
_______________________________________________________________________________________
5
Analogue and Mixed Signal
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