Maxim MAX1200BCMH, MAX1200AEMH, MAX1200ACMH, MAX1200BEMH Datasheet

General Description

The MAX1200 16-bit, monolithic, analog-to-digital converter (ADC) is capable of conversion rates up to 1Msps. This CMOS integrated circuit uses a fully differential, 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 frequency. 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 positive reference (RFPF) typically connected to +4.096V and the negative reference (RFNF) connected to analog 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 CMOScompatible, 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

♦ Monolithic 16-Bit, 1Msps A/D Converter ♦ Single +5V Supply ♦ ±V

REF

Differential Input Voltage Range

♦ 87dB SNR for f

IN

= 100kHz

♦ 91dB SFDR for fIN= 100kHz ♦ 273mW Low-Power Dissipation ♦ ±0.5LSB Differential Nonlinearity Error ♦ Three-State, Two’s Complement Output Data ♦ On-Demand Self-Calibration ♦ 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

1213141516171819202122

4443424140393837363534

33 32 31 30 29 28 27 26 25 24 23

D11

D10

D9

D8

DRV

DD

DGND

D7D6D5D4D3

END_CAL

INN

N.C.

INP

RFNS

RFNF

RFPS

RFPFCMTEST0

TOP VIEW

MQFP

MAX1200

19-1413; Rev 0; 12/98

Ordering Information

Pin Configuration

EVALUATION KIT

AVAILABLE

44 MQFP

PIN-PACKAGETEMP. RANGE

0°C to +70°C 0°C to +70°CMAX1200BCMH

MAX1200ACMH

PART

—

±0.5

DNL

(LSB)

44 MQFP-40°C to +85°CMAX1200BEMH —

44 MQFP-40°C to +85°CMAX1200AEMH ±0.5

MAX1200

+5V Single-Supply, 1Msps, 16-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= +2.048V, VIN= -0.5dBFS, f

CLK

= 2.048MHz;

digital output load ≤ 20pF; TA= T

MIN

to T

MAX

, 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

)

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

DNLDifferential 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)

Ω

700 1000

R

REF

Reference Input Resistance

kΩ

55

R

I

Input Resistance (Note 3)

pF

21

C

I

Input Capacitance

V

4.096 4.5

V

REF

Reference Voltage (Note 4)

UNITSMIN TYP MAXSYMBOLPARAMETER

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)

(AVDD= +5V ±5%, DV

DD

= DRV

DD

= +3.3V, V

RFPS

= +4.096V, V

RFNS

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

CLK

= 2.048MHz;

digital output load ≤ 20pF; TA= T

MIN

to T

MAX

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

dB

55Gain

55Offset

PSRRPower-Supply Rejection Ratio

sec0.1Warm-Up Time

mW273 377PDSSPower Dissipation

10pF loads on D0–D15 and DAV mA0.1 0.6I(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

mA0.4 1.2I(DVDD)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 UNITSMIN TYP MAXSYMBOLPARAMETER

mA51 70I(AVDD)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

fIN= 99.5kHz fIN= 300.5kHz fIN= 504.5kHz fIN= 99.5kHz fIN= 300.5kHz fIN= 504.5kHz fIN= 99.5kHz fIN= 300.5kHz fIN= 504.5kHz fIN= 99.5kHz fIN= 300.5kHz fIN= 504.5kHz fIN= 99.5kHz fIN= 300.5kHz fIN= 504.5kHz fIN= 99.5kHz fIN= 300.5kHz fIN= 504.5kHz fIN= 99.5kHz fIN= 300.5kHz fIN= 504.5kHz fIN= 99.5kHz fIN= 300.5kHz fIN= 504.5kHz

MAX1200

+5V Single-Supply, 1Msps, 16-Bit Self-Calibrating ADC

4 _______________________________________________________________________________________

DIGITAL INPUT AND OUTPUT CHARACTERISTICS

(AVDD= +5V ±5%, 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 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: RIvaries 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

VIN= 0 or DV

DD

CONDITIONS

4Input 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

0.8V

CLK

CLK Input LOW Voltage

AVDD- 0.8V

CLK

CLK Input HIGH Voltage

9C

CLK

CLK Input Capacitance

±0.1 ±10I

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

V

V V

pF

µA

UNITS

VIN= 0 or V

DD

±1 ±10I

CLK

CLK Input Current µA

CL= 20pF

CONDITIONS

ns187 244 301t

CH

Clock HIGH Time

ns488t

CLK

ns4 / f

SAMPLE

t

CONV

Conversion Time Clock Period

ns16 75t

REL

Bus Relinquish Time

ns16 75t

AC

Data Access Time

ns187 244 301t

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

ST_CAL = DV

DD

f

CLK

Cycles

17,400t

CAL

Calibration Time

nst

CLK

/ 2t

ACQ

Acquisition Time

TIMING CHARACTERISTICS (Figures 7, 8, 9)

(AVDD= +5V ±5%, DVDD= DRVDD= +3.3V, f

CLK

= 2.048MHz, TA= 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

(AVDD= +5V ±5%, DVDD= DRVDD= +3.3V, V

RFPS

= +4.096V, V

RFNS

= AGND; VCM= +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)