General Description
The MAX1200 16-bit, monolithic, analog-to-digital con-
verter (ADC) is capable of conversion rates up to
1Msps. This CMOS integrated circuit uses a fully differ-
ential, pipelined architecture with digital error correction
and a short self-calibration to ensure 16-bit linearity at
full sample rates. An on-chip track/hold (T/H) maintains
superb dynamic performance up to the Nyquist frequen-
cy. The MAX1200 operates from a single +5V supply.
The fully differential inputs allow an input swing of
±V
REF
. The reference is also differential with the posi-
tive reference (RFPF) typically connected to +4.096V
and the negative reference (RFNF) connected to ana-
log ground. Additional sensing pins (RFPS, RFNS) are
provided to compensate for any resistive divider action
that may occur. A single-ended input is also possible
using two operational amplifiers.
Power dissipation is typically only 273mW at +5V, at a
sampling rate of 1Msps. The device employs a CMOS-
compatible, 16-bit parallel, two's complement output
data format. For a higher sampling speed (up to
2.2Msps) but lower resolution (14-bit), select the
MAX1201, a pin-compatible version of the MAX1200.
The MAX1200 is available in an MQFP package and
operates over the commercial (0°C to +70°C) and
extended-industrial (-40°C to +85°C) temperature
ranges.
Applications
High-Resolution Imaging
Communications
Scanners
Data Acquisition
Instrumentation
Features
o
Monolithic 16-Bit, 1Msps A/D Converter
o
Single +5V Supply
o
±V
REF
Differential Input Voltage Range
o
87dB SNR for f
IN
= 100kHz
o
91dB SFDR for f
IN
= 100kHz
o
273mW Low-Power Dissipation
o
±0.5LSB Differential Nonlinearity Error
o
Three-State, Two's Complement Output Data
o
On-Demand Self-Calibration
o
Pin-Compatible 14-Bit Versions Available
(1Msps MAX1205, 2.2Msps MAX1201)
MAX1200
+5V Single-Supply, 1Msps, 16-Bit
Self-Calibrating ADC
________________________________________________________________
Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
OE
DAV
CLK
DV
DD
DGND
DGND
DV
DD
TEST1
D0
D1
D2
ST_CAL
AGND
AV
DD
AGND
AGND
AV
DD
DOR
D15
D14
D13
D12
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
D11
D10
D9
D8
DRV
DD
DGND
D7
D6
D5
D4
D3
END_CAL
INN
N.C.
N.C.
INP
RFNS
RFNF
RFPS
RFPF
CM
TEST0
TOP VIEW
MQFP
MAX1200
19-1413; Rev 0; 12/98
Ordering Information
Pin Configuration
EVALUATION KIT
AVAILABLE
44 MQFP
44 MQFP
PIN-PACKAGE
TEMP. RANGE
0°C to +70°C
0°C to +70°C
MAX1200BCMH
MAX1200ACMH
PART
--
±0.5
DNL
(LSB)
44 MQFP
-40°C to +85°C
MAX1200BEMH
--
44 MQFP
-40°C to +85°C
MAX1200AEMH
±0.5
MAX1200
+5V Single-Supply, 1Msps, 16-Bit
Self-Calibrating ADC
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(AV
DD
= +5V ±5%, DV
DD
= DRV
DD
= +3.3V, V
RFPS
= +4.096V, V
RFNS
= AGND, V
CM
= +2.048V, V
IN
= -0.5dBFS, f
CLK
= 2.048MHz;
digital output load
20pF; T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
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, DGND ..........................................................+7V
DV
DD
to DGND, AGND..........................................................+7V
DRV
DD
to DGND, AGND .......................................................+7V
INP, INN, RFPF, RFPS,
RFNF, RFNS, CLK, CM..........(AGND - 0.3V) to (AV
DD
+ 0.3V)
Digital Inputs to DGND ............................-0.3V to (DV
DD
+ 0.3V)
Digital Output (DAV) to DGND ..............-0.3V to (DRV
DD
+ 0.3V)
Other Digital Outputs to DGND .............-0.3V to (DRV
DD
+ 0.3V)
Continuous Power Dissipation (T
A
= +70°C)
44-Pin MQFP (derate 11.11mW/°C above +70°C).......889mW
Operating Temperature Ranges (T
A
)
MAX1200_CMH ..................................................0°C to +70°C
MAX1200_EMH................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
To full-scale step (0.006%)
ns
3
t
AD
Aperture Delay
ns
450
t
OVR
ns
125
t
ACQ
Acquisition Time
Overvoltage Recovery Time
MHz
3.3
MHz
78
Small-Signal Bandwidth
MAX1200A
After calibration, guaranteed for
MAX1200A only
f
SAMPLE =
f
CLK /
2
LSB
-1
±0.5
+1
DNL
Differential Nonlinearity
LSB
±3.5
INL
Bits
16
RES
Resolution
(No missing codes; Note 5)
Integral Nonlinearity
f
SAMPLE
Cycles
4
Conversion Time
(Pipeline Delay/Latency)
Msps
1.024
f
SAMPLE
Maximum Sampling Rate
%FSR
-0.2
±0.003
+0.2
Offset Error
%FSR
-5
-3
5
Gain Error
µV
RMS
75
Input-Referred Noise
Differential
Single-ended
Per side in track mode
CONDITIONS
±4.096
V
4.096
V
IN
Input Voltage Range (Note 2)
700
1000
R
REF
Reference Input Resistance
k
55
R
I
Input Resistance (Note 3)
pF
21
C
I
Input Capacitance
V
4.096
4.5
V
REF
Reference Voltage (Note 4)
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
Full-Power Bandwidth
ps
RMS
5
t
AJ
Aperture Jitter
ANALOG INPUT
EXTERNAL REFERENCE
TRANSFER CHARACTERISTICS
DYNAMIC SPECIFICATIONS
(Note 6)
MAX1200B
±0.6
MAX1200
+5V Single-Supply, 1Msps, 16-Bit
Self-Calibrating ADC
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(AV
DD
= +5V ±5%, DV
DD
= DRV
DD
= +3.3V, V
RFPS
= +4.096V, V
RFNS
= AGND, V
CM
= +2.048V, V
IN
= -0.5dBFS, f
CLK
= 2.048MHz;
digital output load
20pF; T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
dB
55
Gain
55
Offset
PSRR
Power-Supply Rejection Ratio
sec
0.1
Warm-Up Time
mW
273
377
PDSS
Power Dissipation
10pF loads on D0D15 and DAV
mA
0.1
0.6
I(DRV
DD
)
Output Drive Supply Current
V
3
DV
DD
DRV
DD
Output Drive Supply Voltage
V
4.75
5
5.25
AV
DD
Analog Supply Voltage
V
3
5.25
DV
DD
Digital Supply Voltage
mA
0.4
1.2
I(DV
DD
)
Digital Supply Current
V
RFPS
= 4.096V,
V
RFNS
= AGND
V
RFPS
= 4.096V,
V
RFNS
= AGND
V
RFPS
= 4.096V,
V
RFNS
= AGND
V
RFPS
= 4.096V,
V
RFNS
= AGND
88
Spurious-Free Dynamic Range
(Note 5)
89
SFDR
dB
84
91
81
82
dB
-87
-82
THD
Total Harmonic Distortion
(Note 5)
-86
-85
dB
80
84
SINAD
Signal-to-Noise Ratio plus
Distortion (Note 5)
83
84
dB
83
87
SNR
Signal-to-Noise Ratio
(Note 5)
CONDITIONS
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
mA
51
70
I(AV
DD
)
Analog Supply Current
V
RFPS
= 3.5V,
V
RFNS
= 1.5V
80
81
78
83
V
RFPS
= 3.5V,
V
RFNS
= 1.5V
90
91
85
92
V
RFPS
= 3.5V,
V
RFNS
= 1.5V
-90
-84
-89
-88
V
RFPS
= 3.5V,
V
RFNS
= 1.5V
79.5
80.5
77
82
POWER REQUIREMENTS
f
IN
= 99.5kHz
f
IN
= 300.5kHz
f
IN
= 504.5kHz
f
IN
= 99.5kHz
f
IN
= 300.5kHz
f
IN
= 504.5kHz
f
IN
= 99.5kHz
f
IN
= 300.5kHz
f
IN
= 504.5kHz
f
IN
= 99.5kHz
f
IN
= 300.5kHz
f
IN
= 504.5kHz
f
IN
= 99.5kHz
f
IN
= 300.5kHz
f
IN
= 504.5kHz
f
IN
= 99.5kHz
f
IN
= 300.5kHz
f
IN
= 504.5kHz
f
IN
= 99.5kHz
f
IN
= 300.5kHz
f
IN
= 504.5kHz
f
IN
= 99.5kHz
f
IN
= 300.5kHz
f
IN
= 504.5kHz
MAX1200
+5V Single-Supply, 1Msps, 16-Bit
Self-Calibrating ADC
4
_______________________________________________________________________________________
DIGITAL INPUT AND OUTPUT CHARACTERISTICS
(AV
DD
= +5V ±5%, DV
DD
= DRV
DD
= +3.3V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
Note 1:
Reference inputs driven by operational amplifiers for Kelvin-sensed operation.
Note 2:
For unipolar mode, the analog input voltage, V
INP
, must be within 0 and V
REF
, V
INN
= V
CM
/ 2; where V
REF
= V
RFPS
- V
RFNS
.
For differential mode, the analog input voltages V
INP
and V
INN
must be within 0 and V
REF
; where V
REF
= V
RFPS
- V
RFNS
. The
common-mode voltage of the inputs INP and INN is V
CM =
(V
RFPS +
V
RFNS
) / 2.
Note 3:
R
I
varies inversely with sample rate.
Note 4:
Minimum and maximum parameters are not tested. Guaranteed by design.
Note 5:
Calibration remains valid for temperature changes within ±20°C and power-supply variations ±5%. Guaranteed by design.
Note 6:
All AC specifications are shown for the differential mode.
I
SOURCE
= 200µA
V
IN
= 0 or DV
DD
CONDITIONS
4
Input Capacitance
DV
DD
- 0.8
V
IH
0.8
V
IL
Input LOW Voltage
Input HIGH Voltage
DV
DD
DV
DD
- 0.4
- 0.03
V
OH
Output High Voltage
0.8
V
CLK
CLK Input LOW Voltage
AV
DD
- 0.8
V
CLK
CLK Input HIGH Voltage
9
C
CLK
CLK Input Capacitance
±0.1
±10
I
IN
Digital Input Current
MIN
TYP
MAX
SYMBOL
PARAMETER
I
SINK
= 1.6mA
70
400
V
OL
Output Low Voltage
±0.1
±10
I
LEAKAGE
Three-State Leakage Current
3.5
C
OUT
Three-State Output Capacitance
mV
µA
pF
pF
V
V
V
V
V
pF
µA
UNITS
V
IN
= 0 or V
DD
±1
±10
I
CLK
CLK Input Current
µA
C
L
= 20pF
CONDITIONS
ns
187
244
301
t
CH
Clock HIGH Time
ns
488
t
CLK
ns
4 / f
SAMPLE
t
CONV
Conversion Time
Clock Period
ns
16
75
t
REL
Bus Relinquish Time
ns
16
75
t
AC
Data Access Time
ns
187
244
301
t
CL
Clock LOW Time
ns
70
150
t
OD
Output Delay
ns
1 / f
CLK
t
DAV
DAV Pulse Width
ns
65
145
t
S
CLK-to-DAV Rising Edge
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
ST_CAL = DV
DD
f
CLK
Cycles
17,400
t
CAL
Calibration Time
ns
t
CLK
/ 2
t
ACQ
Acquisition Time
TIMING CHARACTERISTICS (Figures 7, 8, 9)
(AV
DD
= +5V ±5%, DV
DD
= DRV
DD
= +3.3V, f
CLK
= 2.048MHz, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at
T
A
= +25°C.) (Note 1)
MAX1200
+5V Single-Supply, 1Msps, 16-Bit
Self-Calibrating ADC
_______________________________________________________________________________________
5
__________________________________________Typical Operating Characteristics
__________________________________________Typical Operating Characteristics
(AV
DD
= +5V ±5%, DV
DD
= DRV
DD
= +3.3V,
V
RFPS
= +4.096V, V
RFNS
= AGND
; V
CM
= +2.048V, differential input, f
CLK
= 2.048MHz,
calibrated, T
A
= +25°C, unless otherwise noted.)
-5
5
-3
-4
-2
-1
2
1
0
3
4
-32768
-16384
0
16384
32768
INTEGRAL NONLINEARITY vs.
TWO'S COMPLEMENT OUTPUT CODE
MAX1200 toc01
TWO'S COMPLEMENT OUTPUT CODE
INL (LSB)
-1.0
0
-0.25
-0.50
-0.75
0.25
0.75
0.50
1.0
-32,768
-16,384
0
16,384
32,768
DIFFERENTIAL NONLINEARITY vs.
TWO'S COMPLEMENT OUTPUT CODE
MAX1200toc02
TWO'S COMPLEMENT OUTPUT CODE
DNL (LSB)
30
50
40
80
70
60
110
100
90
120
-80
-50
-40
-70
-60
-30
-20
-10
0
SINGLE-TONE SPURIOUS-FREE DYNAMIC RANGE
vs. INPUT AMPLITUDE (f
IN
= 99.5kHz)
MAX1200toc03
INPUT AMPLITUDE (dBFS)
SFDR (dB)
(dBFS)
(dBc)
68
72
74
76
78
80
82
84
86
1
10
100
1000
SIGNAL-TO-NOISE RATIO PLUS
DISTORTION vs. INPUT FREQUENCY
MAX1200 toc04
INPUT FREQUENCY (kHz)
SINAD (dB)
70
A
IN
= -0.5dBFS
A
IN
= -6dBFS
A
IN
= -20dBFS
-90
-88
-86
-84
-82
-80
-78
-76
-74
1
10
100
1000
TOTAL HARMONIC DISTORTION
vs. INPUT FREQUENCY
MAX1200 toc05
INPUT FREQUENCY (kHz)
THD (dB)
A
IN
= -0.5dBFS
A
IN
= -6dBFS
A
IN
= -20dBFS
-150
-105
-120
-135
-90
-75
-60
-45
-30
-15
0
0
200
400
600
TYPICAL FFT, f
IN
= 504.5MHz,
8192 VALUE RECORD
MAX1200 toc09
FREQUENCY (kHz)
AMPLITUDE (dBFS)
65
70
80
75
85
90
1
10
100
1000
SIGNAL-TO-NOISE RATIO
vs. INPUT FREQUENCY
vsMAX1200 toc06
INPUT FREQUENCY (kHz)
SNR (dB)
A
IN
= -0.5dBFS
A
IN
= -6dBFS
A
IN
= -20dBFS
80
81
83
82
84
85
0.1
1
10
SIGNAL-TO-NOISE RATIO PLUS DISTORTION
vs. SAMPLING RATE (f
IN
= 99.5kHz)
MAX1200 toc07
SAMPLE RATE (Msps)
SINAD (dB)
-150
-105
-120
-135
-90
-75
-60
-45
-30
-15
0
0
200
400
600
TYPICAL FFT, f
IN
= 99.5kHz,
8192 VALUE RECORD
MAX1200 toc08
FREQUENCY (kHz)
AMPLITUDE (dBFS)
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