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MAX11203, MAX11213
16-Bit, Single-Channel, Ultra-Low Power, Delta-Sigma ADC with Programmable Gain and GPIO
Pin-Compatible Version of the 24-/20-/18-Bit Family
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Status
Active: In Production.
Description
The MAX11203/MAX11213 are ultra-low-power (< 300µA active current), high-resolution, serial-output ADCs. These devices provide the highest resolution per unit power in the industry, and are optimized for applications that require very high dynamic range with low power, such as sensors on a 4mA to 20mA industrial control loop. Optional input buffers provide isolation of the signal inputs from the switched capacitor sampling network allowing these converters to be used with high-impedance sources without compromising available dynamic range or linearity. The devices provide a high-accuracy internal oscillator that requires no external components. When used with the specified data rates, the internal digital filter provides more than 100dB rejection of 50Hz or 60Hz line noise. The devices are configurable using the SPI™ interface and include four GPIOs that can be used for external mux control. The MAX11213 includes digital programmable gain of 1 to 128.
The MAX11203/MAX11213 operate over the -40°C to +85°C temperature range, and are available in a 16-pin QSOP package.
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Data Sheet
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An evaluation kit is available: MAX11200EVKIT, MAX11206EVKIT, MAX11209EVKIT, MAX11210EVKIT, MAX11213EVKIT MAXADC-RTD NOTE: This product uses the following:MAXADC-RTD EVKit Software
Key Features
- 16-Bit Noise-Free Resolution
- 570nVRMS Noise at 10sps, ±3.6VFS Input
- 3ppm INL (typ), 20ppm (max)
- No Missing Codes
- Ultra-Low Power Dissipation
- Operating-Mode Current Drain < 300µA (max)
- Sleep-Mode Current Drain < 0.4µA
- Programmable Gain (1 to 128) (MAX11213)
- Four SPI-Controlled GPIOs for External Mux Control
- 2.7V to 3.6V Analog Supply Voltage Range
- 1.7V to 3.6V Digital and I/O Supply Voltage Range
- Fully Differential Signal and Reference Inputs
- High-Impedance Inputs
- Optional Input Buffers on Both Signal and Reference Inputs
- > 100dB (min) 50Hz/60Hz Rejection
- SPI, QSPI™, MICROWIRE™-Compatible Serial Interface
- On-Demand Offset and Gain Self-Calibration and System Calibration
- User-Programmable Offset and Gain Registers
- -40°C to +85°C Operating Temperature Range
- ±2kV ESD Protection
- Lead(Pb)-Free and RoHS-Compliant QSOP Package
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Applications/Uses
- Battery Applications
- Portable Instrumentation
- Sensor Measurement (Temperature and Pressure)
- Weigh Scales
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Key Specifications:
| Precision ADCs (< 5Msps) |
| Part Number |
Resolution
(bits) |
Input Chan. |
Conv. Rate
(ksps) |
Data Bus
(bits) |
Diff/S.E. Input |
External VREF
(V) |
External VREF
(V) |
Unipolar VIN
(V) |
Bipolar VIN
(±V) |
DNL
(±LSB) |
INL
(±LSB) |
Package/Pins |
Budgetary Price |
| ADC |
max |
min |
max |
max |
max |
See Notes |
| MAX11203 |
16 |
1 |
0.48 |
SPI |
Both |
0 |
3.6 |
3.6 |
3.6 |
1 |
20 |
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$1.75 @1k |
| MAX11213 |
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$1.95 @1k |
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See All Precision ADCs (< 5Msps) (423)
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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.
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Diagram
Functional Diagram
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Information Index
Document Ref.: 19-5334
Rev 0;
2010-07-16
This page last modified: 2010-09-16
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