MAXIM MAX1334, MAX1335 Technical data

General Description

The MAX1334/MAX1335 2-channel, serial-output,
10-bit, analog-to-digital converters (ADCs) feature two
true-differential analog inputs and offer outstanding noise
immunity and dynamic performance. Both devices easily
interface with SPI™/QSPI™/MICROWIRE™ and standard
digital signal processors (DSPs).

The MAX1334 operates from a single +4.75V to +5.25V
supply with sampling rates up to 4.5Msps. The
MAX1335 operates from a single +2.7V to +3.6V supply
with sampling rates up to 4Msps. These devices feature
a partial power-down mode and a full power-down
mode that reduce the supply current to 3.3mA and

0.2µA, respectively. Also featured is a separate power­supply input (DVDD) that allows direct interfacing to
+2.7V to +3.6V digital logic. The fast conversion speed,
low power dissipation, excellent AC performance, and
DC accuracy (±0.4 LSB INL) make the MAX1334/
MAX1335 ideal for industrial process control, motor
control, and base-station applications.

The MAX1334/MAX1335 are available in a space-sav­ing (3mm x 3mm), 16-pin, TQFN package and operate
over the extended (-40°C to +85°C) temperature range.

Applications

Data Acquisition
Bill Validation
Motor Control
Base Stations
High-Speed Modems
Optical Sensors
Industrial Process Control

Features

♦ 4.5Msps Sampling Rate (+5V, MAX1334)

♦ 4Msps Sampling Rate (+3V, MAX1335)

♦ Separate Logic Supply: +2.7V to +3.6V

♦ Two True-Differential Analog Input Channels

♦ Bipolar/Unipolar Selection Input

♦ Only 40mW (typ) Power Consumption

♦ Only 2µA (max) Shutdown Current

♦ High-Speed, SPI-Compatible, 3-Wire Serial

Interface

♦ 2.6MHz Full-Linear Bandwidth

♦ 61dB SINAD at 525kHz Input Frequency

♦ No Pipeline Delays

♦ Space-Saving (3mm x 3mm), 16-Pin TQFN

Package

MAX1334/MAX1335

4.5Msps/4Msps, 5V/3V, 2-Channel,
True-Differential, 10-Bit ADCs

________________________________________________________________ Maxim Integrated Products 1

Ordering Information

AIN1P

DOUT

SCLK

CNVST

AIN1N

REF

DIFFERENTIAL

INPUT VOLTAGE

+4.75V TO +5.25V

+2.7V TO +3.6V

µC/DSP

CHSEL

+

-

AV

DD

DV

DD

AGND AGND DGND

BIP/UNI

SHDN

0.01µF0.01µF1µF

1µF

0.01µF

1µF

AIN0P

AIN0N

REF INPUT

VOLTAGE

+

-

MAX1334

Typical Operating Circuit

19-3767; Rev 1; 10/05

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

SPI/QSPI are trademarks of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor Corp.

*EP = Exposed paddle.
**Future product—contact factory for availability.

Selector Guide appears at end of data sheet.
Pin Configuration appears at end of data sheet.

查询MAX1329供应商

PART TEMP RANGE PIN-PACKAGE

MAX1334ETE** -40°C to +85°C

MAX1335ETE -40°C to +85°C

16 TQFN-EP*
(3mm x 3mm)

16 TQFN-EP*
(3mm x 3mm)

T1633F-3

T1633F-3

PKG

CODE

MAX1334/MAX1335

4.5Msps/4Msps, 5V/3V, 2-Channel,
True-Differential, 10-Bit ADCs

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

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 (MAX1334) ......................................-0.3V to +6V

AV

DD

to AGND (MAX1335) ......................................-0.3V to +4V

DV

DD

to DGND.........................................................-0.3V to +4V

AGND to DGND.....................................................-0.3V to +0.3V

SCLK, CNVST, SHDN, CHSEL, BIP/UNI,

DOUT to DGND ...................................-0.3V to (DV

DD

+ 0.3V)

AIN0P, AIN0N, AIN1P, AIN1N, REF to

AGND...................................................-0.3V to (AV

DD

+ 0.3V)

Maximum Current into Any Pin .........................................±50mA

Continuous Power Dissipation (T

A

= +70°C)

16-Pin TQFN (derate 17.5mW/°C above +70°C) ....1398.6mW

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

ELECTRICAL CHARACTERISTICS (MAX1334)

(AVDD= +4.75V to +5.25V, DVDD= +2.7V to +3.6V, f

SCLK

= 76MHz, V

REF

= 4.096V, TA= T

MIN

to T

MAX

, unless otherwise noted.

Typical values are at T

A

= +25°C.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

DC ACCURACY (Note 1) (BIP/UNI = DGND)

Resolution N 10 Bits

Integral Nonlinearity INL ±0.4 ±1.0 LSB

Differential Nonlinearity DNL ±0.4 ±1.0 LSB

Offset Error ±1.0 ±1.5 LSB

Gain Error ±1.5 ±4.0 LSB

Offset-Error Temperature
Coefficient

Gain-Error Temperature
Coefficient

DYNAMIC SPECIFICATIONS (AIN = -0.2dBFS, fIN = 525kHz, BIP/UNI = DVDD, unless otherwise noted) (Note 1)

Signal-to-Noise Ratio SNR 66 61 dB

Signal-to-Noise Plus Distortion SINAD 59.5 61 dB

Total Harmonic Distortion THD -77 -68 dBc

Spurious-Free Dynamic Range SFDR 68 78 dBc

Intermodulation Distortion IMD

Channel-to-Channel Isolation 76 dB

Full-Linear Bandwidth SINAD > 56dB 2.6 MHz

Full-Power Bandwidth 5.4 MHz

Small-Signal Bandwidth 5MHz

CONVERSION RATE

Minimum Conversion Time t

Maximum Throughput Rate 4.5 Msps

Minimum Track-and-Hold
Acquisition Time

CONV

t

ACQ

f

IN1

f

IN2

Figure 5 171 ns

Figure 5 32 ns

= 103.5kHz, A
= 113.5kHz, A

= TBDdBFS

IN1

= TBDdBFS

IN2

±1.1 ppm/°C

±4.5 ppm/°C

-72 dB

MAX1334/MAX1335

4.5Msps/4Msps, 5V/3V, 2-Channel,
True-Differential, 10-Bit ADCs

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (MAX1334) (continued)

(AVDD= +4.75V to +5.25V, DVDD= +2.7V to +3.6V, f

SCLK

= 76MHz, V

REF

= 4.096V, TA= T

MIN

to T

MAX

, unless otherwise noted.

Typical values are at T

A

= +25°C.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Aperture Delay t

Aperture Jitter t

AD

AJ

Figure 21 < 10 ns

Figure 21 < 10 ps

DIFFERENTIAL ANALOG INPUTS (AIN0P, AIN0N, AIN1P, AIN1N)

Differential Input Voltage Range
(V

AIN_P

- V

AIN_N

)

V

BIP/UNI = DGND 0 V

IN

BIP/UNI = DV

Absolute Input Voltage Range

DC Leakage Current I

Input Capacitance C

LKG

IN

REFERENCE INPUT (REF)

REF Input Voltage Range V

REF Input Capacitance C

REF DC Leakage Current I

REF

REF

REF

DIGITAL INPUTS (SCLK, CNVST, SHDN, CHSEL, BIP/UNI)

Input-Voltage Low V

Input-Voltage High V

IL

IH

Input Hysteresis 100 mV

Input Leakage Current I

Input Capacitance C

ILKG

IN

DIGITAL OUTPUT (DOUT)

Output-Voltage Low V

Output-Voltage High V

Tri-State Leakage Current I

Tri-State Output Capacitance C

OL

OH

LKGT

OUT

I

SINK

I

SOURCE

Between conversions, CNVST = DV

Between conversions, CNVST = DV

POWER REQUIREMENTS

Analog Supply Voltage AV

Digital Supply Voltage DV

DD

DD

Normal mode; average unloaded current
(f

Analog Supply Current I

AVDD

SAMPLE

Partial power-down mode 3.3 4

Full power-down mode 0.1 2 µA

DD

-V

REF

AGND

- 50mV

/ 2 +V

REF

/ 2

REF

AV

DD

+

50mV

±10 µA

14 pF

AV

DD

1.0

+

50mV

14 pF

±10 µA

0.3 x

DV

DD

0.7 x

DV

DD

±0.2 ±5 µA

15 pF

= 5mA 0.4 V

DV

-

= 1mA

DD

DD

DD

0.5

±1 µA

15 pF

4.75 5.25 V

2.7 3.6 V

= 4.0MHz, f

SCLK

= 64MHz)

11 12

V

V

V

V

V

V

mA

MAX1334/MAX1335

4.5Msps/4Msps, 5V/3V, 2-Channel,
True-Differential, 10-Bit ADCs

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (MAX1334) (continued)

(AVDD= +4.75V to +5.25V, DVDD= +2.7V to +3.6V, f

SCLK

= 76MHz, V

REF

= 4.096V, TA= T

MIN

to T

MAX

, unless otherwise noted.

Typical values are at T

A

= +25°C.)

TIMING CHARACTERISTICS (MAX1334) (Figure 4)

(AVDD= +4.75V to +5.25V, DVDD= +2.7V to +3.6V, TA= T

MIN

to T

MAX

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

Note 1: Tested with AVDD= 4.75V and DVDD= +2.7V.
Note 2: Guaranteed by design, not production tested.

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Power-Supply Rejection PSR AVDD = 4.75V to 5.25V, full-scale input ±0.5 ±0.3 mV

DVDD

Average unloaded current (f

4.5MHz, f

Power-down (f

Static or power-down, all digital inputs are
connected to DV

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

SCLK Clock Period t

SCLK Pulse Width t

CNVST Rise to DOUT Disable t

CNVST Fall to DOUT Enable t

CHSEL to CNVST Fall Setup t
BIP/UNI to CNVST Fall Setup t

CNVST Fall to CHSEL Hold t
CNVST Fall to BIP/UNI Hold t

DOUT Remains Valid After SCLK t

SCLK Rise to DOUT Transition t

CNVST to SCLK Rise t

SCLK Rise to CNVST t

CNVST Pulse Width t

Minimum Recovery Time (Full
Power-Down)

Minimum Recovery Time (Partial
Power-Down)

CP

SPW

CRDD

CFDE

CHCF

BUCF

CFCH

CFBU

DHOLD

DOT

SETUP

HOLD

CSW

t

FPD

t

PPD

C

LOAD

C

LOAD

From CNVST fall or SHDN rise 4 µs

From CNVST fall 500 ns

= 76MHz, zero-scale input)

SCLK

= 76MHz) 18 45Digital Supply Current I

SCLK

DD

= 0pF (Note 2) 1 2 ns

= 30pF 6 ns

=

SAMPLE

or DGND

13.1 ns

6ns

15 ns

15 ns

32 ns

32 ns

0ns

0ns

6ns

0ns

6ns

58mA

0.2 2

µA

MAX1334/MAX1335

4.5Msps/4Msps, 5V/3V, 2-Channel,
True-Differential, 10-Bit ADCs

_______________________________________________________________________________________ 5

ELECTRICAL CHARACTERISTICS (MAX1335)

(AVDD= +2.7V to +3.6V, DVDD= +2.7V to +3.6V, f

SCLK

= 64MHz, V

REF

= 2.5V, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical

values are at T

A

= +25°C.)

DC ACCURACY (Note 3) (BIP/UNI = DGND)

Resolution N 10 Bits

Relative Accuracy INL ±0.4 ±1.0 LSB

Differential Nonlinearity DNL ±0.4 ±1.0 LSB

Offset Error ±1.0 ±1.5 LSB

Gain Error ±1.5 ±4.0 LSB

Offset-Error Temperature
Coefficient

Gain-Error Temperature
Coefficient

DYNAMIC SPECIFICATIONS (AIN = -0.2dBFS, fIN = 525kHz, BIP/UNI = DVDD, unless otherwise noted) (Note 3)

Signal-to-Noise Ratio SNR 60 61 dB

Signal-to-Noise Plus Distortion SINAD 59.5 61 dB

Total Harmonic Distortion THD -77 -68 dBc

Spurious-Free Dynamic Range SFDR 68 78 dBc

Channel-to-Channel Isolation 76 dB

Full-Linear Bandwidth SINAD > 56dB 2.6 MHz

Full-Power Bandwidth 5.4 MHz

Small-Signal Bandwidth 5MHz

CONVERSION RATE

Minimum Conversion Time t

Maximum Throughput Rate 4 Msps

Minimum Track-and-Hold
Acquisition Time

Aperture Delay t

Aperture Jitter t

DIFFERENTIAL ANALOG INPUTS (AIN0P, AIN0N, AIN1P, AIN1N)

Differential Input Voltage Range
(V

AIN_P

Absolute Input Voltage Range

DC Leakage Current I

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

CONV

t

ACQ

AD

AJ

V

- V

AIN_N

)

IN

LKG

Figure 5 203 ns

Figure 5 39 ns

Figure 21 < 10 ns

Figure 21 < 10 ps

BIP/UNI = DGND 0 V
BIP/ UNI = DV

DD

±1.1 ppm/°C

±4.5 ppm/°C

-V

/ 2 +V

REF

AGND

- 50mV

REF

/ 2

REF

AV

DD

+

50mV

±1 µA

V

V

MAX1334/MAX1335

4.5Msps/4Msps, 5V/3V, 2-Channel,
True-Differential, 10-Bit ADCs

6 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (MAX1335) (continued)

(AVDD= +2.7V to +3.6V, DVDD= +2.7V to +3.6V, f

SCLK

= 64MHz, V

REF

= 2.5V, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical

values are at T

A

= +25°C.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Input Capacitance C

IN

REFERENCE INPUT (REF)

REF Input Voltage V

REF Input Capacitance C

REF DC Leakage Current I

REF

REF

REF

DIGITAL INPUTS (SCLK, CNVST, SHDN, CHSEL, BIP/UNI)

Input-Voltage Low V

Input-Voltage High V

IL

IH

Input Hysteresis 100 mV

Input Leakage Current I

Input Capacitance C

DIGITAL OUTPUT (DOUT)

Output-Voltage Low V

Output-Voltage High V

Tri-State Leakage Current I

Tri-State Output Capacitance C

POWER REQUIREMENTS

Analog Supply Voltage AV

Digital Supply Voltage DV

Analog Supply Current I

Positive Supply Rejection PSR AVDD = 2.7V to 3.6V, full-scale input ±6 mV

ILKG

IN

OL

OH

LKGT

OUT

DD

DD

AVDD

DVDD

14 pF

AV

1.0
50mV

14 pF

0.3 x

DV

0.7 x

DV

DD

±0.2 ±5 µA

15 pF

I

= 5mA 0.4 V

SINK

DV

-

I

SOURCE

= 1mA

Between conversions, CNVST = DV

Between conversions, CNVST = DV

DD

DD

DD

0.5

15 pF

2.7 3.6 V

2.7 AV

Normal mode; average unloaded current
(f

SAMPLE

= 4MHz, f

SCLK

= 64MHz)

9.6 12

Partial power-down mode 3.3 4

Full power-down mode 0.1 2 µA

Average unloaded current (f
4MHz, f

Power-down (f

= 64MHz, zero-scale input)

SCLK

= 40MHz) 18 45Digital Supply Current I

SCLK

Static or power-down; all digital inputs are
connected to DV

or DGND

DD

SAMPLE

=

5.0 8.0 mA

0.2 2

DD

+

±10 µA

DD

±1 µA

DD

mA

µA

V

V

V

V

V

MAX1334/MAX1335

4.5Msps/4Msps, 5V/3V, 2-Channel,
True-Differential, 10-Bit ADCs

_______________________________________________________________________________________ 7

TIMING CHARACTERISTICS (MAX1335) (Figure 4)

(AVDD= +2.7V to +3.6V, DVDD= +2.7V to +3.6V, TA= T

MIN

to T

MAX

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

Note 3: Tested with AVDD= DVDD= +2.7V.
Note 4: Guaranteed by design, not production tested.

Figure 1. Load Circuits for Enable/Disable Times

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

SCLK Clock Period t

SCLK Pulse Width t

CNVST Rise to DOUT Disable t

CNVST Fall to DOUT Enable t

CHSEL to CNVST Fall Setup t
BIP/UNI to CNVST Fall Setup t

CNVST Fall to CHSEL Hold t
CNVST Fall to BIP/UNI Hold t

DOUT Remains Valid After SCLK t

SCLK Rise to DOUT Transition t

CNVST to SCLK Rise t

SCLK Rise to CNVST t

CNVST Pulse Width t

Minimum Recovery Time (Full
Power-Down)

Minimum Recovery Time (Partial
Power-Down)

CP

CPW

CRDD

CFDE

CHCF

BUCF

CFCH

CFBU

DHOLD

DOT

SETUP

HOLD

CSW

t

FPD

t

PPD

C

LOAD

C

LOAD

From CNVST fall or SHDN rise 4 µs

From CNVST fall 500 ns

= 0pF (Note 4) 1 2 ns

= 30pF 6 ns

15.6 ns

6ns

15 ns

15 ns

36 ns

36 ns

0ns

0ns

6ns

0ns

6ns

DOUT DOUT

6kΩ

a) HIGH IMPEDANCE TO VOH, V
AND V

TO HIGH IMPEDANCE

OH

30pF 30pF

DGND

TO VOH,

OL

DV

DD

6kΩ

DGND

b) HIGH IMPEDANCE TO V
AND V

TO HIGH IMPEDANCE

OL

OL, VOH

TO VOL,