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The MAX1034/MAX1035 multirange, low-power, 14-bit, successive-approximation, analog-to-digital converters (ADCs) operate from a single +5V supply and achieve throughput rates up to 115ksps. A separate digital supply allows digital interfacing with 2.7V to 5.25V systems using the SPI-/QSPI™-/MICROWIRE®-compatible serial interface. Partial power-down mode reduces the supply current to 1.3mA (typ). Full power-down mode reduces the power-supply current to 1µA (typ).
The MAX1034 provides eight (single-ended) or four (true differential) analog input channels. The MAX1035 provides four (single-ended) or two (true differential) analog input channels. Each analog input channel is independently software programmable for seven single-ended input ranges (0V to +VREF/2, -VREF/2 to 0V, 0V to +VREF, -VREF to 0V, ±VREF/4, ±VREF/2, and ±VREF), and three differential input ranges (±VREF/2, ±VREF, ±2 x VREF).
An on-chip +4.096V reference offers a small convenient ADC solution. The MAX1034/MAX1035 also accept an external reference voltage between 3.800V and 4.136V.
The MAX1034 is available in a 24-pin TSSOP package and the MAX1035 is available in a 20-pin TSSOP package. Each device is specified for operation from -40°C to +85°C.
Key Features
- Software-Programmable Input Range for Each Channel
- Single-Ended Input Ranges
- 0V to +VREF/2, -VREF/2 to 0V, 0V to +VREF, -VREF to 0V, ±VREF/4, ±VREF/2, and ±VREF
- Differential Input Ranges
- ±VREF/2, ±VREF, and ±2 x VREF
- Eight Single-Ended or Four Differential Analog Inputs (MAX1034)
- Four Single-Ended or Two Differential Analog Inputs (MAX1035)
- ±6V Overvoltage Tolerant Inputs
- Internal or External Reference
- 115ksps Maximum Sample Rate
- Single +5V Power Supply
- 20-/24-Pin TSSOP Package
Applications/Uses
- Avionics
- Data Acquisition Systems
- Industrial Control Systems
- Robotics
| Resolution (bits) (ADC) | 14 |
| # Input Channels | 4 |
| Conv. Rate (ksps) (max) | 115 |
| Data Bus | SPI |
| ADC Architecture | SAR |
| Diff/S.E. Input | Both |
| Internal VREF (V) (nominal) | 4.096 |
| External VREF (V) (min) | 3.8 |
| External VREF (V) (max) | 4.136 |
| Unipolar VIN (V) (max) | 4.096 |
| Bipolar VIN (±V) (max) | 4.096 |
| INL (±LSB) | 0.25 |
| Package/Pins | TSSOP/20 |
| Budgetary Price (See Notes) | $6.74 @1k |
Technical Docs
| Data Sheet | 8-/4-Channel, ±VREF Multirange Inputs, Serial 14-Bit ADCs | Apr 26, 2012 |
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Parameters
| Resolution (bits) (ADC) | 14 |
| # Input Channels | 4 |
| Conv. Rate (ksps) (max) | 115 |
| Data Bus | SPI |
| ADC Architecture | SAR |
| Diff/S.E. Input | Both |
| Internal VREF (V) (nominal) | 4.096 |
| External VREF (V) (min) | 3.8 |
| External VREF (V) (max) | 4.136 |
| Unipolar VIN (V) (max) | 4.096 |
| Bipolar VIN (±V) (max) | 4.096 |
| INL (±LSB) | 0.25 |
| Package/Pins | TSSOP/20 |
| Budgetary Price (See Notes) | $6.74 @1k |
Key Features
- Software-Programmable Input Range for Each Channel
- Single-Ended Input Ranges
- 0V to +VREF/2, -VREF/2 to 0V, 0V to +VREF, -VREF to 0V, ±VREF/4, ±VREF/2, and ±VREF
- Differential Input Ranges
- ±VREF/2, ±VREF, and ±2 x VREF
- Eight Single-Ended or Four Differential Analog Inputs (MAX1034)
- Four Single-Ended or Two Differential Analog Inputs (MAX1035)
- ±6V Overvoltage Tolerant Inputs
- Internal or External Reference
- 115ksps Maximum Sample Rate
- Single +5V Power Supply
- 20-/24-Pin TSSOP Package
Applications/Uses
- Avionics
- Data Acquisition Systems
- Industrial Control Systems
- Robotics
Description
The MAX1034/MAX1035 multirange, low-power, 14-bit, successive-approximation, analog-to-digital converters (ADCs) operate from a single +5V supply and achieve throughput rates up to 115ksps. A separate digital supply allows digital interfacing with 2.7V to 5.25V systems using the SPI-/QSPI™-/MICROWIRE®-compatible serial interface. Partial power-down mode reduces the supply current to 1.3mA (typ). Full power-down mode reduces the power-supply current to 1µA (typ).
The MAX1034 provides eight (single-ended) or four (true differential) analog input channels. The MAX1035 provides four (single-ended) or two (true differential) analog input channels. Each analog input channel is independently software programmable for seven single-ended input ranges (0V to +VREF/2, -VREF/2 to 0V, 0V to +VREF, -VREF to 0V, ±VREF/4, ±VREF/2, and ±VREF), and three differential input ranges (±VREF/2, ±VREF, ±2 x VREF).
An on-chip +4.096V reference offers a small convenient ADC solution. The MAX1034/MAX1035 also accept an external reference voltage between 3.800V and 4.136V.
The MAX1034 is available in a 24-pin TSSOP package and the MAX1035 is available in a 20-pin TSSOP package. Each device is specified for operation from -40°C to +85°C.
Technical Docs
| Data Sheet | 8-/4-Channel, ±VREF Multirange Inputs, Serial 14-Bit ADCs | Apr 26, 2012 |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal
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