MAX1177BEUP-T Maxim Integrated, MAX1177BEUP-T Datasheet

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MAX1177BEUP-T

Manufacturer Part Number
MAX1177BEUP-T
Description
Analog to Digital Converters - ADC
Manufacturer
Maxim Integrated
Datasheet

Specifications of MAX1177BEUP-T

Number Of Channels
1
Architecture
SAR
Conversion Rate
135 KSPs
Resolution
16 bit
Input Type
Single-Ended
Snr
91 dB
Interface Type
Parallel
Operating Supply Voltage
4.75 V to 5.25 V
Maximum Operating Temperature
+ 85 C
Package / Case
TSSOP-20
Maximum Power Dissipation
879 mW
Minimum Operating Temperature
- 40 C
Number Of Converters
1
Voltage Reference
4.096 V
The MAX1177 is a 16-bit, low-power, successive-
approximation analog-to-digital converter (ADC) featur-
ing automatic power-down, a factory-trimmed internal
clock, and a byte-wide parallel interface. The device
operates from a single +4.75V to +5.25V analog supply
and features a separate digital supply input for direct
interface with +2.7V to +5.25V digital logic.
The MAX1177 accepts an analog input voltage range
from 0 to +10V. It consumes no more than 26.5mW at a
sampling rate of 135ksps when using an external refer-
ence, and 31mW when using the internal +4.096V refer-
ence. AutoShutdown™ reduces supply current to
0.4mA at 10ksps.
The MAX1177 is ideal for high-performance, battery-
powered, data-acquisition applications. Excellent AC
performance (THD = -100dB) and DC accuracy (±3
LSB INL) make this device ideal for industrial process
control, instrumentation, and medical applications.
The MAX1177 is available in a 20-pin TSSOP package
and is fully specified over the -40°C to +85°C extended
temperature range and the 0°C to +70°C commercial
temperature range.
19-2597; Rev 0; 8/03
Pin Configuration and Functional Diagram appear at end of
data sheet.
AutoShutdown is a trademark of Maxim Integrated Products, Inc.
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.
Temperature Sensing and Monitoring
Industrial Process Control
I/O Modules
Data-Acquisition Systems
Precision Instrumentation
________________________________________________________________ Maxim Integrated Products
General Description
16-Bit, 135ksps, Single-Supply ADC
Applications
with 0 to 10V Input Range
o Byte-Wide Parallel Interface
o Analog Input Voltage Range: 0 to +10V
o Single +4.75V to +5.25V Analog Supply Voltage
o Interfaces with +2.7V to +5.25V Digital Logic
o ±3 LSB INL
o ±1 LSB DNL
o Low Supply Current (max)
o Small Footprint
o 20-Pin TSSOP Package
MAX1177ACUP
MAX1177BCUP
MAX1177CCUP
MAX1177AEUP
MAX1177BEUP
MAX1177CEUP
2.9mA (External Reference)
3.8mA (Internal Reference)
5µA AutoShutdown Mode
PART
ANALOG INPUT
LOW
BYTE
HIGH
BYTE
0.1µF
Typical Operating Circuit
AIN
R/C
CS
HBEN
+5V ANALOG
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
AV
Ordering Information
0°C to +70°C
0°C to +70°C
0°C to +70°C
DD
MAX1177
AGND DGND
+5V DIGITAL
DV
D8–D15
REFADJ
DD
D0–D7
EOC
REF
OR
0.1µF
µP DATA
BUS
PIN-PACKAGE
Features
0.1µF
20 TSSOP
20 TSSOP
20 TSSOP
20 TSSOP
20 TSSOP
20 TSSOP
10µF
1

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MAX1177BEUP-T Summary of contents

Page 1

... LSB DNL o Low Supply Current (max) 2.9mA (External Reference) 3.8mA (Internal Reference) 5µA AutoShutdown Mode o Small Footprint o 20-Pin TSSOP Package PART MAX1177ACUP MAX1177BCUP MAX1177CCUP MAX1177AEUP MAX1177BEUP MAX1177CEUP Applications ANALOG INPUT LOW BYTE Features Ordering Information TEMP RANGE PIN-PACKAGE 0°C to +70°C 20 TSSOP 0° ...

Page 2

Single-Supply ADC with to 10V Input Range ABSOLUTE MAXIMUM RATINGS AV to AGND .........................................................-0. DGND.........................................................-0.3V to +6V DD AGND to DGND.....................................................-0.3V to +0.3V AIN to AGND .....................................................-16.5V to +16.5V REF, REFADJ to AGND............................-0.3V ...

Page 3

Single-Supply ADC ELECTRICAL CHARACTERISTICS (continued) ( +5V ±5%, external reference = +4.096V unless otherwise noted. Typical values are at T PARAMETER SYMBOL INTERNAL REFERENCE REF Output Voltage REF Output Tempco REF Short-Circuit ...

Page 4

Single-Supply ADC with to 10V Input Range TIMING CHARACTERISTICS (Figures 1 and 2) (AV = +4.75V to +5.25V +2. 20pF LOAD A MIN MAX ...

Page 5

Single-Supply ADC (Typical Operating Circuit 20pF. Typical values are at T LOAD A SUPPLY CURRENT ( vs. SAMPLE RATE 10 1 STANDBY MODE 0.1 SHUTDOWN MODE ...

Page 6

Single-Supply ADC with to 10V Input Range PIN NAME 1 D4/D12 Tri-State Digital-Data Output 2 D5/D13 Tri-State Digital-Data Output 3 D6/D14 Tri-State Digital-Data Output 4 D7/D15 Tri-State Digital-Data Output. D15 is the MSB. Read/Convert Input. Power up and ...

Page 7

Single-Supply ADC Detailed Description Converter Operation The MAX1177 uses a successive-approximation (SAR) conversion technique with an inherent track-and-hold (T/H) stage to convert an analog input into a 16-bit digital output. Parallel outputs provide a high-speed interface to microprocessors ...

Page 8

Single-Supply ADC with to 10V Input Range Power-Down Modes Select standby mode or shutdown mode with the R/C bit during the second falling edge of CS (see the Selecting Standby or Shutdown Mode section). The MAX1177 automatically enters ...

Page 9

Single-Supply ADC ACQUISITION CONVERSION CS R/C EOC REF AND BUFFER POWER Figure 5. Selecting Standby Mode While in standby mode, the supply current is less than 3.7mA (typ). The next falling edge of CS with R/C low causes ...

Page 10

Single-Supply ADC with to 10V Input Range INPUT RANGE = 0V TO +10V OUTPUT CODE FULL-SCALE 1111 1111 1111 1111 TRANSITION 1111 1111 1111 1110 1111 1111 1111 1101 FULL-SCALE RANGE (FSR) = +10V 0000 0000 0000 0011 ...

Page 11

Single-Supply ADC Integral Nonlinearity Integral nonlinearity (INL) is the deviation of the values on an actual transfer function from a straight line. This straight line can be either a best-straight-line fit or a line drawn between the end ...

Page 12

Single-Supply ADC with to 10V Input Range REFERENCE REF INPUT AIN SCALER AGND CLOCK CS R/C Pin Configuration TOP VIEW D4/D12 1 2 D5/D13 D6/D14 3 4 D7/D15 R/C 5 MAX1177 EOC AGND ...

Page 13

... 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. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 13 © 2003 Maxim Integrated Products ...

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