Maxim MAX1201EMH, MAX1201CMH Datasheet

MAX1201

+5V Single-Supply, 2.2Msps, 14-Bit

Self-Calibrating ADC

________________________________________________________________

Maxim Integrated Products

1

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General Description

The MAX1201 is a 14-bit, monolithic, analog-to-digital
converter (ADC) capable of conversion rates up to

2.2Msps. This integrated circuit, built on a CMOS
process, uses a fully differential, pipelined architecture
with digital error correction and a short self-calibration
procedure that corrects for capacitor and gain mis­matches and ensures 14-bit linearity at full sample rates.
An on-chip track-and-hold (T/H) maintains superb
dynamic performance up to the Nyquist frequency. The
MAX1201 operates from a single +5V supply.

The fully differential inputs allow an input swing of
±VREF. A single-ended input is also possible using two
operational amplifiers. The reference is also differential
with the positive reference (RFPF) typically connected
to +4.096V and the negative reference (RFNF) tied to
analog ground. Additional sensing pins (RFPS, RFNS)
are provided to compensate for any resistive divider
action that may occur due to finite internal and external
resistances.

The power dissipation is typically only 269mW at +5V
and a sampling rate of 2.2Msps. The device employs a
CMOS compatible, 14-bit parallel, two’s complement out­put data format. The MAX1201 is available in a 44-pin
MQFP package and is specified over the commercial
temperature (0°C to +70°C) and extended (-40°C to
+85°C) temperature ranges.

Applications

xDSL
Instrumentation
Medical Imaging
Scanners
IR Imaging
Spectrum Analysis

Features

♦ Monolithic 14-Bit, 2.2Msps ADC
♦ Signal-to-Noise Ratio of 83dB
♦ Spurious-Free Dynamic Range of 91dB
♦ Differential Nonlinearity Error: ±0.3LSB
♦ Integral Nonlinearity Error: ±1.2LSB
♦ Single +5V Analog Supply, +3V Digital Supply
♦ Low Power Dissipation: 269mW
♦ On-Demand Self-Calibration
♦ Three-State, Two’s Complement Output Data

OE
DAV
CLK
DV

DD

DGND
DGND
DV

DD

TEST1
TEST2
TEST3
D0

ST_CAL

AGND

AV

DD

AGND
AGND

AV

DD

DOR

D13
D12
D11
D10

1
2
3
4
5
6
7
8

9
10
11

1213141516171819202122

4443424140393837363534

33
32
31
30
29
28
27
26
25
24
23

D9D8D7

D6

DRV

DD

DGND

D5D4D3D2D1

END_CAL

INN

N.C.

N.C.

INP

RFNS

RFNF

RFPS

RFPFCMTEST0

TOP VIEW

MQFP

MAX1201

19-4776; Rev 1; 11/98

PART TEMP. RANGE PIN-PACKAGE

Ordering Information

Pin Configuration

MAX1201CMH
MAX1201EMH -40°C to +85°C

0°C to +70°C 44 MQFP

44 MQFP

EVALUATION KIT

AVAILABLE

MAX1201

+5V Single-Supply, 2.2Msps, 14-Bit
Self-Calibrating ADC

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(AVDD= +5V ±5%, DV

DD

= DRV

DD

= +3.3V, V

RFPS

= +4.096V, V

RFNS

= AGND, VCM= +2.048, VIN= -0.5dBFS, f

CLK

= 4.5056MHz,

digital output load ≤ 20pF, TA= T

MIN

to T

MAX

= 0°C to +70°C, unless otherwise noted. Typical values are at TA= +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.

AVDDto 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 (TA= +70°C)

44-Pin MQFP (derate 11.11mW/°C above +70°C).......889mW

Operating Temperature Ranges (T

A

)

MAX1201CMH ....................................................0°C to +70°C

MAX1201EMH .................................................-40°C to +85°C

Storage Temperature Range.............................-65°C to +160°C

Lead Temperature (soldering, 10sec).............................+300°C

PARAMETER SYMBOL MIN TYP MAX UNITS

Reference Voltage (Note 3) V

REF

4.096 4.5

V

Input Capacitance C

I

21

pF

Input Resistance (Note 4) R

I

25

kΩ

Reference Input Resistance

700 1000

Ω

Input Voltage Range (Notes 2, 3) V

IN

4.096 4.5
V

±4.096 ±4.5

CONDITIONS

Per side in Track Mode

Single-ended
Differential

Input-Referred Noise

75

µV

RMS

Gain Error

-5 -1.7 +5

%FSR

Offset Error

-0.1 ±0.004 +0.1

%FSR

Maximum Sampling Rate f

SAMPLE

2.2528

Msps

Conversion Time (Pipeline
Delay/Latency)

4

f

SAMPLE

Cycles

Integral Nonlinearity

Resolution
(no missing codes; Note 5)

RES

14

Bits

INL

±1.2

LSB

Differential Nonlinearity DNL

-1 ±0.3 +1

LSB

f

CLK

f

SAMPLE

=

f

CLK

/

2

After calibration, guaranteed

Small-Signal Bandwidth

78

MHz

Full-Power Bandwidth

3.3

MHz

Overvoltage Recovery Time

Acquisition Time t

ACQ

100

ns

t

OVR

410

ns

Aperture Delay t

AD

3

ns

To full-scale step (0.006%)

MAX1201

+5V Single-Supply, 2.2Msps, 14-Bit

Self-Calibrating ADC

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

(AVDD= +5V ±5%, DV

DD

= DRV

DD

= +3.3V, V

RFPS

= +4.096V, V

RFNS

= AGND, VCM= +2.048, VIN= -0.5dBFS, f

CLK

= 4.5056MHz,

digital output load ≤ 20pF, TA= T

MIN

to T

MAX

= 0°C to +70°C, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)

dB

55Gain

55Offset

PSRRPower-Supply Rejection Ratio

sec0.1Warm-Up Time

mW269 380PDSSPower Dissipation

10pF loads on D0–D13 and DAV mA0.3 1I(DRVDD)Output Drive Supply Current

V3DV

DD

DRV

DD

Output Drive Supply Voltage

V4.75 5 5.25AV

DD

Analog Supply Voltage

V3 5.25DV

DD

Digital Supply Voltage

mA12I(DVDD)Digital Supply Current

fIN= 1.0021MHz

fIN= 502.7kHz

fIN= 100.1kHz

fIN= 1.0021MHz

fIN= 502.7kHz

fIN= 100.1kHz

fIN= 1.0021MHz

fIN= 502.7kHz

fIN= 100.1kHz
fIN= 502.7kHz
fIN= 1.0021MHz
fIN= 100.1kHz

86

Spurious-Free Dynamic Range
(Note 5)

89SFDR dB

84 91

78

79

dB

-88 -80

THD

Total Harmonic Distortion
(Note 6)

-85

-83

dB

77 82

SINAD

Signal-to-Noise Ratio +
Distortion (Note 5)

81

82 dB

78 83

SNR

Signal-to-Noise Ratio
(Note 5)

CONDITIONS UNITSMIN TYP MAXSYMBOLPARAMETER

mA53 75I(AVDD)Analog Supply Current

POWER REQUIREMENTS

CL= 20pF

CONDITIONS

ns85 113.5 137t

CH

Clock High Time

ns227t

CLK

ns4/f

SAMPLE

t

CONV

Conversion Time
Clock Period

ns16 75t

REL

Bus Relinquish Time

ns16 75t

AC

Data Access Time

ns85 113.5 137t

CL

Clock Low Time

ns70 150t

OD

Output Delay

ns1/f

CLK

t

DAV

DAV Pulse Width

ns65 145t

S

CLK-to-DAV Rising Edge

UNITSMIN TYP MAXSYMBOLPARAMETER

TIMING CHARACTERISTICS

(AVDD= +5V, DVDD= DRVDD= +3.3V, f

CLK

= 4.5056MHz, TA= T

MIN

to T

MAX

= 0°C to +70°C, unless otherwise noted. Typical

values are at T

A

= +25°C.) (Note 1)

ST_CAL = DV

DD

f

CLK

cycles

17,400t

CAL

Calibration Time

MAX1201

+5V Single-Supply, 2.2Msps, 14-Bit
Self-Calibrating ADC

4 _______________________________________________________________________________________

DIGITAL INPUT AND OUTPUT CHARACTERISTICS

(AVDD= +5V, DVDD= DRVDD= +3.3V, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at TA= +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 0V and V

REF

, V

INN

= V

REF

/2; where V

REF

= V

RFPS

-

V

RFNS

. For differential mode, the analog input voltages V

INP

and V

INN

must be within 0V and V

REF

; where V

REF

= V

RFPS

-

V

RFNS

. The common-mode voltage of the inputs INP and INN is V

REF

/2.

Note 3: Minimum and maximum parameters are not tested. Guaranteed by design.
Note 4: Input resistance varies inversely with sample rate.
Note 5: Calibration remains valid for temperature changes within ±20°C and power-supply variations ±5%.
Note 6: All AC specifications are shown for the differential mode.

I

SOURCE

= 200µA

V

IN_

= DV

DD

V

IN_

= 0

CONDITIONS

4.0Input Capacitance

DVDD- 0.8V

IH

0.8V

IL

Input Low Voltage
Input High Voltage

DV

DD

DV

DD

- 0.4 - 0.03

V

OH

Output High Voltage

0.8CLK

VIL

CLK Input Low Voltage

AVDD- 0.8CLK

VIH

CLK Input High Voltage

9C

CLK

CLK Input Capacitance

±0.1 ±10

I

IN

Digital Input Current

MIN TYP MAX

SYMBOLPARAMETER

I

SINK

= 1.6mA 70 400V

OL

Output Low Voltage

±0.1 ±10I

LEAKAGE

Three-State Leakage Current

3.5C

OUT

Three-State Output Capacitance

mV

µA
pF

pF

V

V

V

V
V

pF
µA

UNITS

±0.1 ±10

V

IN_

= 0 or DV

DD

±1 ±10I

CLK

CLK Input Current µA

MAX1201

+5V Single-Supply, 2.2Msps, 14-Bit

Self-Calibrating ADC

_______________________________________________________________________________________

5

__________________________________________Typical Operating Characteristics

110

30

-70 -60 -40-50 -30 -20 -10 0

SINGLE-TONE SPURIOUS-FREE DYNAMIC

RANGE vs. INPUT AMPLITUDE (f

IN

= 100.1kHz)

MAX1201 toc01

INPUT AMPLITUDE (dBFS)

SFDR (dB)

60
50
40

90

100

80
70

dBFS

dBc

84
86

80

82

78
76

60

62

1k 10k 100k 1M

SIGNAL-TO-NOISE PLUS DISTORTION

vs. INPUT FREQUENCY

MAX1201 toc02

INPUT FREQUENCY (Hz)

SINAD (dB)

66

72

74

64

70
68

AIN = -0.5dBFS

AIN = -6dBFS

AIN = -20dBFS

-70

-72

-74

-90
1k 10k 100k 1M

TOTAL HARMONIC DISTORTION

vs. INPUT FREQUENCY

MAX1201 toc03

INPUT FREQUENCY (Hz)

THD (dB)

-82

-84

-78

-76

-88

-86

-80

AIN = -20dBFS

AIN = -6dBFS

AIN = -0.5dBFS

90
88
86
84

60

1k 10k 100k 1M

SIGNAL-TO-NOISE-RATIO

vs. INPUT FREQUENCY

MAX1201 toc04

INPUT FREQUENCY (Hz)

SNR (dB)

74

80

82

72
70
68
66
64
62

78
76

AIN = -0.5dBFS

AIN = -6dBFS

AIN = -20dBFS

90
88

84

86

70

100k 1M 3M

SIGNAL-TO-NOISE-RATIO PLUS DISTORTION

vs. SAMPLE RATE (f

IN

= 100.1kHz)

MAX1201 toc05

SAMPLE RATE (sps)

SINAD (dB)

74

80

82

72

78
76

AIN = -0.5dBFS

__________________________________________Typical Operating Characteristics

(AVDD= +5V, DVDD= DRVDD= +3.3V, V

RFPS

= +4.096V, V

RFNS

= AGND, f

CLK

= 4.5056MHz, differential input, VCM= +2.048V, cal-

ibrated, TA = +25°C, unless otherwise noted.)

-135

-105

-120

-90

-75

-60

-45

-30

-15

0

0 400k200k 600k 800k 1M 1.2M

TYPICAL FFT, fIN = 100.1kHz,

2048 VALUE RECORD

MAX1201 toc06

FREQUENCY (Hz)

AMPLITUDE (dBFS)

-135

-105

-120

-90

-75

-60

-45

-30

-15

0

0 400k200k 600k 800k 1M 1.2M

TYPICAL FFT, fIN = 1.0021MHz,

2048 VALUE RECORD

MAX1201 toc07

FREQUENCY (Hz)

AMPLITUDE (dBFS)

-2.0

-1.0

-0.5

-1.5

0.5
0

1.0

2.0

1.5

-8192 -4096-2048-6144 0 2048 4096 6144 8192

INTEGRAL NONLINEARITY vs.

TWO’S COMPLEMENT OUTPUT CODE

MAX1201 toc08

TWO’S COMPLEMENT OUTPUT CODE

INL (LSB)