MAX1291BCEI+
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Analog Devices Inc./Maxim Integrated MAX1291BCEI+

Manufacturer No:
MAX1291BCEI+
Manufacturer:
Analog Devices Inc./Maxim Integrated
Package:
Tube
Description:
IC ADC 12BIT SAR 28QSOP
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The MAX1291BCEI+ is a low-power, 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1291/MAX1293 series, known for its high performance, low power consumption, and compact design. The MAX1291BCEI+ operates with a single +3V analog supply and features a user-adjustable logic level, allowing it to interface directly with digital supplies ranging from +1.8V to +5.5V. It is ideal for battery-powered and data-acquisition applications where power efficiency and space are critical.

Key Specifications

ParameterValue
Resolution12-bit
Sampling RateUp to 250ksps
Analog Supply Voltage2.7V to 3.6V
Digital Supply Voltage1.8V to 3.6V
Number of Channels8 single-ended / 4 pseudo-differential
Reference TypeInternal (+2.5V) / External
Integral Nonlinearity (INL)±1 LSB
Operating Temperature0°C to +70°C
Package Type28-pin QSOP
Power Consumption5.7mW at 250ksps, <10µA in power-down mode

Key Features

  • Successive-approximation ADC with automatic power-down and fast wake-up (2µs)
  • Software-configurable analog inputs for unipolar/bipolar and single-ended/pseudo-differential operation
  • Internal +2.5V reference and high-speed, byte-wide parallel interface
  • User-adjustable logic level (+1.8V to +3.6V)
  • Low power consumption: 1.9mA at 250ksps, 2µA in shutdown mode
  • Small footprint: 28-pin QSOP package
  • Internal 3MHz full-power bandwidth track/hold stage

Applications

The MAX1291BCEI+ is suitable for a variety of applications, including battery-powered devices, data-acquisition systems, and other circuits with stringent power consumption and space requirements. It is particularly useful in medical devices, industrial control systems, and portable electronics where low power and high accuracy are essential.

Q & A

  1. What is the resolution of the MAX1291BCEI+ ADC?
    The MAX1291BCEI+ has a 12-bit resolution.
  2. What is the maximum sampling rate of the MAX1291BCEI+?
    The maximum sampling rate is up to 250ksps.
  3. What are the operating supply voltage ranges for the MAX1291BCEI+?
    The analog supply voltage ranges from 2.7V to 3.6V, and the digital supply voltage ranges from 1.8V to 3.6V.
  4. How many channels does the MAX1291BCEI+ support?
    The MAX1291BCEI+ supports 8 single-ended channels or 4 pseudo-differential channels.
  5. What is the power consumption of the MAX1291BCEI+ at maximum sampling rate?
    The power consumption is 5.7mW at 250ksps.
  6. Can the MAX1291BCEI+ be powered down to reduce power consumption?
    Yes, the MAX1291BCEI+ has two software-selectable power-down modes that can reduce supply current to under 10µA.
  7. What is the package type of the MAX1291BCEI+?
    The MAX1291BCEI+ is available in a 28-pin QSOP package.
  8. What are the operating temperature ranges for the MAX1291BCEI+?
    The operating temperature range is from 0°C to +70°C.
  9. Does the MAX1291BCEI+ have an internal reference voltage?
    Yes, the MAX1291BCEI+ has an internal +2.5V reference voltage.
  10. What interface type does the MAX1291BCEI+ use?
    The MAX1291BCEI+ uses a high-speed, byte-wide parallel interface.

Product Attributes

Number of Bits:12
Sampling Rate (Per Second):250k
Number of Inputs:4, 8
Input Type:Pseudo-Differential, Single Ended
Data Interface:Parallel
Configuration:MUX-S/H-ADC
Ratio - S/H:ADC:1:1
Number of A/D Converters:1
Architecture:SAR
Reference Type:External, Internal
Voltage - Supply, Analog:2.7V ~ 3.6V
Voltage - Supply, Digital:1.8V ~ 3.6V
Features:- 
Operating Temperature:0°C ~ 70°C
Package / Case:28-SSOP (0.154", 3.90mm Width)
Supplier Device Package:28-QSOP
Mounting Type:Surface Mount
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$17.03
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Similar Products

Part Number MAX1291BCEI+ MAX1291BCEI+T MAX1295BCEI+ MAX1291BEEI+ MAX1294BCEI+ MAX1290BCEI+ MAX1291ACEI+ MAX1291BCEI
Manufacturer Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated
Product Status Active Active Active Active Active Active Obsolete Obsolete
Number of Bits 12 12 12 12 12 12 - 12
Sampling Rate (Per Second) 250k 250k 265k 250k 420k 400k - 250k
Number of Inputs 4, 8 4, 8 3, 6 4, 8 3, 6 4, 8 - 4, 8
Input Type Pseudo-Differential, Single Ended Pseudo-Differential, Single Ended Pseudo-Differential, Single Ended Pseudo-Differential, Single Ended Pseudo-Differential, Single Ended Pseudo-Differential, Single Ended - Pseudo-Differential, Single Ended
Data Interface Parallel Parallel Parallel Parallel Parallel Parallel - Parallel
Configuration MUX-S/H-ADC MUX-S/H-ADC MUX-S/H-ADC MUX-S/H-ADC MUX-S/H-ADC MUX-S/H-ADC - MUX-S/H-ADC
Ratio - S/H:ADC 1:1 1:1 1:1 1:1 1:1 1:1 - 1:1
Number of A/D Converters 1 1 1 1 1 1 - 1
Architecture SAR SAR SAR SAR SAR SAR - SAR
Reference Type External, Internal External, Internal External, Internal External, Internal External, Internal External, Internal - External, Internal
Voltage - Supply, Analog 2.7V ~ 3.6V 2.7V ~ 3.6V 2.7V ~ 3.6V 2.7V ~ 3.6V 5V 5V - 2.7V ~ 3.6V
Voltage - Supply, Digital 1.8V ~ 3.6V 1.8V ~ 3.6V 2.7V ~ 3.6V 1.8V ~ 3.6V 5V 2.7V ~ 5.5V - 1.8V ~ 3.6V
Features - - - - - - - -
Operating Temperature 0°C ~ 70°C 0°C ~ 70°C 0°C ~ 70°C -40°C ~ 85°C 0°C ~ 70°C 0°C ~ 70°C - 0°C ~ 70°C
Package / Case 28-SSOP (0.154", 3.90mm Width) 28-SSOP (0.154", 3.90mm Width) 28-SSOP (0.154", 3.90mm Width) 28-SSOP (0.154", 3.90mm Width) 28-SSOP (0.154", 3.90mm Width) 28-SSOP (0.154", 3.90mm Width) - 28-SSOP (0.154", 3.90mm Width)
Supplier Device Package 28-QSOP 28-QSOP 28-QSOP 28-QSOP 28-QSOP 28-QSOP - 28-QSOP
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount - Surface Mount

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