MAX1091BEEI+ Maxim Integrated Products, MAX1091BEEI+ Datasheet

MAX1091BEEI+

Manufacturer Part Number

MAX1091BEEI+

Description

IC ADC 10BIT 250KSPS 28-QSOP

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX1093BEEG.pdf (20 pages)

Specifications of MAX1091BEEI+

Number Of Bits

Sampling Rate (per Second)

250k

Data Interface

Parallel

Number Of Converters

Power Dissipation (max)

667mW

Voltage Supply Source

Single Supply

Operating Temperature

-40°C ~ 85°C

Mounting Type

Surface Mount

Package / Case

28-QSOP

Number Of Adc Inputs

Architecture

SAR

Conversion Rate

250 KSPs

Resolution

10 bit

Input Type

Differential

Interface Type

Parallel

Voltage Reference

Internal 2.5 V or External

Supply Voltage (max)

3 V

Maximum Power Dissipation

762 mW

Maximum Operating Temperature

+ 85 C

Mounting Style

SMD/SMT

Minimum Operating Temperature

- 40 C

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Current page: 1 of 20
Download datasheet (406Kb)

The MAX1091/MAX1093 low-power, 10-bit analog-to-

digital converters (ADCs) feature a successive-approxi-

mation ADC, automatic power-down, fast wake-up

(2µs), an on-chip clock, +2.5V internal reference, and a

high-speed, byte-wide parallel interface. They operate

with a single +3V analog supply and feature a V

pin that allows them to interface directly with a +1.8V to

+3.6V digital supply.

Power consumption is only 5.7mW (V

maximum sampling rate of 250ksps. Two software-selec-

table power-down modes enable the MAX1091/

MAX1093 to be shut down between conversions;

accessing the parallel interface returns them to normal

operation. Powering down between conversions can cut

supply current to under 10µA at reduced sampling rates.

Both devices offer software-configurable analog inputs

for unipolar/bipolar and single-ended/pseudo-differen-

tial operation. In single-ended mode, the MAX1091 has

eight input channels and the MAX1093 has four input

channels (four and two input channels, respectively,

when in pseudo-differential mode).

Excellent dynamic performance and low power, com-

bined with ease of use and small package size, make

these converters ideal for battery-powered and data-

acquisition applications or for other circuits with demand-

ing power consumption and space requirements.

The MAX1091/MAX1093 tri-states INT when CS goes

high. Refer to MAX1061/MAX1063 if tri-stating INT is not

desired.

The MAX1091 is available in a 28-pin QSOP package,

while the MAX1093 is available in a 24-pin QSOP. For

pin-compatible +5V, 10-bit versions, refer to the

MAX1090/MAX1092 data sheet.

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.

19-1638; Rev 2; 12/02

Ordering Information continued at end of data sheet.

MAX1091ACEI

MAX1091BCEI

MAX1091AEEI

MAX1091BEEI

Industrial Control Systems

Energy Management

Data-Acquisition Systems

PART

with +2.5V Reference and Parallel Interface

-40°C to +85°C

TEMP RANGE

________________________________________________________________ Maxim Integrated Products

0°C to +70°C

250ksps, +3V, 8-/4-Channel, 10-Bit ADCs

Ordering Information

General Description

PIN-PACKAGE

28 QSOP

Data Logging

Patient Monitoring

Touch Screens

Applications

= V

LOGIC

) at the

(LSB)

LOGIC

±0.5

±1

±0.5

±1

INL

o 10-Bit Resolution, ±0.5 LSB Linearity

o +3V Single-Supply Operation

o User-Adjustable Logic Level (+1.8V to +3.6V)

o Internal +2.5V Reference

o Software-Configurable, Analog Input Multiplexer

o Software-Configurable, Unipolar/Bipolar Inputs

o Low Power

o Internal 3MHz Full-Power Bandwidth Track/Hold

o Byte-Wide Parallel (8 + 2) Interface

o Small Footprint: 28-Pin QSOP (MAX1091)

Typical Operating Circuits appear at end of data sheet.

Pin Configurations continued at end of data sheet.

8-Channel Single-Ended/

4-Channel Pseudo-Differential (MAX1091)

4-Channel Single-Ended/

2-Channel Pseudo-Differential (MAX1093)

1.9mA (250ksps)

1.0mA (100ksps)

400µA (10ksps)

2µA (Shutdown)

TOP VIEW

D1/D9

D0/D8

HBEN

INT

24-Pin QSOP (MAX1093)

MAX1093

QSOP

Pin Configurations

REF

REFADJ

GND

COM

CH0

CH1

CH2

CH3

CLK

LOGIC

Features

Related parts for MAX1091BEEI+

MAX1091BEEI+ Summary of contents

Page 1

... QSOP -40°C to +85°C MAX1091BEEI 28 QSOP Ordering Information continued at end of data sheet. ________________________________________________________________ Maxim Integrated Products 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. o 10-Bit Resolution, ±0.5 LSB Linearity o +3V Single-Supply Operation o User-Adjustable Logic Level (+1.8V to +3.6V) o Internal +2 ...

Page 2

ADCs with +2.5V Reference and Parallel Interface ABSOLUTE MAXIMUM RATINGS V to GND ..............................................................-0. GND.........................................................-0.3V to +6V LOGIC CH0–CH7, COM to GND ............................-0. REF, REFADJ to GND ................................-0.3V to ...

Page 3

ADCs with +2.5V Reference and Parallel Interface ELECTRICAL CHARACTERISTICS (continued +2.7V to +3.6V, COM = GND, REFADJ = V DD LOGIC cycle unless otherwise noted. Typical ...

Page 4

ADCs with +2.5V Reference and Parallel Interface ELECTRICAL CHARACTERISTICS (continued +2.7V to +3.6V, COM = GND, REFADJ = V DD LOGIC cycle unless otherwise noted. Typical ...

Page 5

ADCs with +2.5V Reference and Parallel Interface TIMING CHARACTERISTICS (continued +2.7V to +3.6V, COM = GND, REFADJ = V DD LOGIC cycle unless otherwise noted. Typical ...

Page 6

ADCs with +2.5V Reference and Parallel Interface ( +3V +2.500V LOGIC REF INTEGRAL NONLINEARITY vs. OUTPUT CODE 0.4 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 0 200 400 ...

Page 7

ADCs with +2.5V Reference and Parallel Interface ( +3V +2.500V LOGIC REF INTERNAL REFERENCE VOLTAGE vs. SUPPLY VOLTAGE 2.53 2.52 2.51 2.50 2.49 2.48 2.7 3.0 3.3 V (V) ...

Page 8

ADCs with +2.5V Reference and Parallel Interface PIN NAME MAX1091 MAX1093 1 1 HBEN D1/D9 9 ...

Page 9

ADCs with +2.5V Reference and Parallel Interface Detailed Description Converter Operation The MAX1091/MAX1093 ADCs use a successive- approximation (SAR) conversion technique and an input track/hold (T/H) stage to convert an analog input signal to a 10-bit ...

Page 10

ADCs with +2.5V Reference and Parallel Interface 10-BIT CAPACITIVE DAC REF INPUT C HOLD MUX ZERO – + CH0 CH1 12pF CH2 R IN 800Ω CH3 C SWITCH HOLD CH4 TRACK AT THE SAMPLING INSTANT, CH5 ...

Page 11

ADCs with +2.5V Reference and Parallel Interface conversion. The sampling interval occurs at the end of the acquisition interval. The ACQMOD (acquisition mode) bit in the input control byte (Table 1) offers two options for acquiring ...

Page 12

ADCs with +2.5V Reference and Parallel Interface CSWS CONTROL D7–D0 BYTE ACQMOD = "0" HIGH-Z INT RD HBEN HIGH-Z DOUT Figure 4. Conversion Timing Using Internal Acquisition ...

Page 13

ADCs with +2.5V Reference and Parallel Interface Selecting Clock Mode The MAX1091/MAX1093 operate with either an internal or an external clock. Control bits D6 and D7 select either internal or external clock mode. The parts retain ...

Page 14

ADCs with +2.5V Reference and Parallel Interface ACQUISITION STARTS CLK ACQMOD = "1" ACQUISITION STARTS CLK ACQMOD = "1" Figure 6b. External Clock and WR Timing (External Acquisition Mode) Table ...

Page 15

ADCs with +2.5V Reference and Parallel Interface Table 4. Channel Selection for Pseudo-Differential Operation (SGL/DIF = ...

Page 16

ADCs with +2.5V Reference and Parallel Interface When applying an external reference to REF, disable the internal reference buffer by connecting REFADJ The DC input resistance at REF is 25kΩ. DD Therefore, an ...

Page 17

ADCs with +2.5V Reference and Parallel Interface Table 6. Full-Scale and Zero-Scale for Unipolar and Bipolar Operation UNIPOLAR MODE Full Scale Zero Scale — sion cycles, and 2 read cycles. This assumes that the results of ...

Page 18

ADCs with +2.5V Reference and Parallel Interface CLK WR RD HBEN CONTROL D7–D0 D9–D8 D7–D0 BYTE LOW HIGH BYTE BYTE STATE ACQUISITION SAMPLING INSTANT Figure 10. Timing Diagram for Fastest Conversion Total ...

Page 19

ADCs with +2.5V Reference and Parallel Interface CLK V LOGIC MAX1091 REF µP WR REFADJ CONTROL INPUTS RD HBEN INT CH7 D7 CH6 CH5 D6 CH4 D5 CH3 D4 CH2 D3 CH1 D2 ...

Page 20

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 20 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2002 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products ...

Related keywords

max10
max109
max1039
max1099ceae
max1099
MAX1091BEEI+ datasheet
MAX1091BEEI+ data sheet
MAX1091BEEI+ pdf datasheet
MAX1091BEEI+ component
MAX1091BEEI+ part
MAX1091BEEI+ distributor
MAX1091BEEI+ RoHS
MAX1091BEEI+ datasheet download