|
MAX1358B
16-Bit, Data-Acquisition System with ADC, DACs, UPIOs, RTC, Voltage Monitors, and Temp Sensor
|
Status
Active: In Production.
Description
The MAX1358B smart data-acquisition system (DAS) is based on a 16-bit, sigma-delta analog-to-digital converter (ADC) and system-support functionality for a microprocessor (µP)-based system. This device integrates an ADC, DACs, operational amplifiers, internal selectable-voltage reference, temperature sensors, analog switches, a 32kHz oscillator, a real-time clock (RTC) with alarm, a high-frequency-locked loop (FLL) clock, four user-programmable I/Os, an interrupt generator, and 1.8V and 2.7V voltage monitors in a single chip.
The MAX1358B has dual 10:1 differential input multiplexers (muxes) that accept signal levels from 0 to AVDD. An on-chip 1x to 8x programmable-gain amplifier (PGA) allows measuring low-level signals and reduces external circuitry required.
The MAX1358B operates from a single +1.8V to +3.6V supply and consumes only 1.15mA in normal mode and only 3µA in sleep mode. The MAX1358B has two DACs with one uncommitted op amp.
The serial interface is compatible with either SPI™/QSPI™ or MICROWIRE™, and is used to power up, configure, and check the status of all functional blocks.
The MAX1358B is available in a space-saving, 40-pin TQFN package and is specified over the commercial (0°C to +70°C) and the extended (-40°C to +85°C) temperature ranges.
|
|
Data Sheet
|
An evaluation kit is available: MAX1358EVKIT
Key Features
- +1.8V to +3.6V Single-Supply Operation
- Multichannel, 16-Bit, Sigma-Delta ADC
- 10sps to 477sps Programmable Conversion Rate
- Self- and System Offset and Gain Calibration
- PGA with Gains of 1, 2, 4, or 8
- Unipolar and Bipolar Modes
- 10-Input Differential Multiplexer
- 10-Bit Force-Sense DACs
- Uncommitted Op Amps
- Dual SPDT and SPST Analog Switches
- Selectable References
- Internal Charge Pump
- System Support
- RTC and Alarm Register
- Internal/External Temperature Sensor
- Internal Oscillator with Clock Output
- User-Programmable I/O and Interrupt Generator
- VDD Monitors
- SPI/QSPI/MICROWIRE, 4-Wire Serial Interface
- Space-Saving (6mm x 6mm x 0.8mm), 40-Pin TQFN Package
|
|
Applications/Uses
- Battery-Powered and Portable Devices
- Data-Acquisition Systems
- Electrochemical and Optical Sensors
- Industrial Control
- Medical Instruments
|
|
|
|
Key Specifications:
| Precision ADCs (< 5Msps) |
| Part Number |
Resolution
(bits) |
Input Chan. |
Conv. Rate
(ksps) |
Data Bus
(bits) |
Diff/S.E. Input |
Internal VREF
(V) |
External VREF
(V) |
External VREF
(V) |
Unipolar VIN
(V) |
Bipolar VIN
(±V) |
INL
(±LSB) |
Package/Pins |
Budgetary Price |
| ADC |
max |
nominal |
min |
max |
max |
max |
See Notes |
| MAX1358B |
16 |
2 |
0.512 |
SPI |
Diff. Only |
2.5 |
1 |
3.6 |
2.5 |
2.5 |
2 |
|
$8.88 @1k |
|
See All Precision ADCs (< 5Msps) (423)
|
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
|
|
| Sensor Signal Conditioners |
| Part Number |
Sensing Element |
PGA Gain |
Calibration Method |
Output Type |
ICC
(mA) |
Interface |
DACs/ADCs |
VSUPPLY
(V) |
Budgetary Price |
| typ |
See Notes |
| MAX1358B |
Amperometric Cell (Blood Glucose) |
1 to 8 (4 gains) |
External microcontroller |
Digital |
1.15 |
SPI |
|
1.8 to 3.6 |
$8.88 @1k |
|
See All Sensor Signal Conditioners (10)
|
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
|
|
Diagram
Functional Diagram
Didn't Find What You Need?
Information Index
Document Ref.: 19-5159
Rev 1;
2011-03-09
This page last modified: 2011-03-09
|
Download
E-Mail