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MAX1032, MAX1033
8-/4-Channel, ±12V Multirange Inputs, Serial 14-Bit ADCs
Low-Power, Multichannel ADCs with ±VREF or +12V Input Range
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Status
Active: In Production.
Description
The MAX1032/MAX1033 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 MAX1032 provides eight (single-ended) or four (true differential) analog input channels. The MAX1033 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 0 to (3 × VREF)/2, (-3 × VREF)/2 to 0, 0 to 3 × VREF, -3 × VREF to 0, (±3 × VREF)/4, (±3 × VREF)/2, ±3 × VREF and three differential input ranges (±3 × VREF)/2, 3 × VREF, ±6 × VREF.
An on-chip +4.096V reference offers a small convenient ADC solution. The MAX1032/MAX1033 also accept an external reference voltage between 3.800V and 4.136V.
The MAX1032 is available in a 24-pin TSSOP package and the MAX1033 is available in a 20-pin TSSOP package. Each device is specified for operation from -40°C to +85°C.
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Data Sheet
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Key Features
- Software-Programmable Input Range for Each Channel
- Single-Ended Input Ranges (VREF = 4.096V)
- (0 to (3 × VREF)/2, (-3 × VREF)/2 to 0, 0 to 3 × VREF, -3 × VREF to 0, (±3 × VREF)/4, (±3 × VREF)/2, ±3 × VREF)
- Differential Input Ranges
- (±3 × VREF)/2, 3 × VREF, ±6 × VREF
- Eight Single-Ended or Four Differential Analog Inputs (MAX1032)
- Four Single-Ended or Two Differential Analog Inputs (MAX1033)
- ±16.5V Overvoltage Tolerant Inputs
- Internal or External Reference
- 115ksps Maximum Sample Rate
- Single +5V Power Supply
- 20-/24-Pin TSSOP Package
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Applications/Uses
- Avionics
- Data Acquisition Systems
- Industrial Control Systems
- Robotics
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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 |
Internal VREF
(V) |
External VREF
(V) |
External VREF
(V) |
Unipolar VIN
(V) |
Bipolar VIN
(±V) |
SNR
(dB) |
SINAD
(dB) |
THD
(dB) |
SFDR
(dB) |
DNL
(±LSB) |
INL
(±LSB) |
Package/Pins |
Budgetary Price |
| ADC |
max |
nominal |
min |
max |
max |
max |
See Notes |
| MAX1032 |
14 |
8 |
115 |
SPI |
Both |
4.096 |
3.8 |
4.136 |
12.288 |
12.288 |
85 |
83 |
-97 |
99 |
1 |
0.25 |
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$6.97 @1k |
| MAX1033 |
4 |
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$6.67 @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
 Block Diagram
More Information
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Information Index
Document Ref.: 19-3573
Rev 5;
2012-01-09
This page last modified: 2012-01-09
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