MAX1240：+2.7V, Low-Power, 12-Bit Serial ADCs in 8-Pin SO
The MAX1240/MAX1241 low-power, 12-bit analog-to-digital converters (ADCs) are available in 8-pin packages. The MAX1240 operates with a single +2.7V to +3.6V supply, and the MAX1241 operates with a single +2.7V to +5.25V supply. Both devices feature a 7.5µs successive-approximation ADC, a fast track/hold (1.5µs), an on-chip clock, and a high-speed, 3-wire serial interface. Power consumption is only 37mW (VDD = 3V) at the 73ksps maximum sampling speed. A 2µA shutdown mode reduces power at slower throughput rates. The MAX1240 has an internal 2.5V reference, while the MAX1241 requires an external reference. The MAX1241 accepts signals from 0V to VREF, and the reference input range includes the positive supply rail. An external clock accesses data from the 3-wire interface, which connects directly to standard microcontroller I/O ports. The interface is compatible with SPI™, QSPI™, and MICROWIRE™. Excellent AC characteristics and very low power combined with ease of use and small package size make these converters ideal for remote-sensor and data-acquisition applications, or for other circuits with demanding power consumption and space requirements. The MAX1240/MAX1241 are available in 8-pin PDIP and SO packages.
Key Features
| MAX1240, MAX1241: Functional Diagram Applications/Uses
|
DataSheet
| title | Download file |
|---|---|
| MAX1240-MAX1241 Data Sheet | MAX1240-MAX1241.pdf |
Parametrics
| Part Number | Resolution (bits) | Input Chan. | Conv. Rate (ksps) | ADC Architecture | Data Bus | Diff/S.E. Input | Internal VREF (V) | External VREF (V) | External VREF (V) | Unipolar VIN (V) | SNR (dB) | THD (dB) | INL (±LSB) | Package/Pins | Budgetary Price |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ADC | max | nominal | min | max | max | See Notes | |||||||||
| MAX1240 | 12 | 1 | 73 | SAR | SPI | S.E. Only | 2.5 | 1 | 3.6 | 2.5 | 70 | -88 | 1 | CDIP(N)/8 PDIP(N)/8 SOIC(N)/8 | $5.83 @1k |
| MAX1241 | - | 5.25 | CDIP(N)/8 PDIP(N)/8 SOIC(N)/8 | $5.45 @1k | |||||||||||
Quality and Environmental Data
Related Products
- MAX1272：Fault-Protected, 12-Bit ADCs with Software-Selectable Input Range
- MAX145：+2.7V, Low-Power, 2-Channel, 108ksps, Serial 12-Bit ADCs in 8-Pin µMAX
- MAX144：+2.7V, Low-Power, 2-Channel, 108ksps, Serial 12-Bit ADCs in 8-Pin µMAX
- MAX189：+5V, Low-Power, 12-Bit Serial ADCs
Ordering Information
| Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
|---|---|---|---|---|---|
| MAX1240ACPA | No Longer Available | MAX1240ACPA+ | PDIP(N),;8 pin;79.7 mm² | 0°C to +70°C | No |
| MAX1240ACPA+ | Active | PDIP(N),;8 pin;79.7 mm² | 0°C to +70°C | Lead Free | |
| MAX1240ACSA | No Longer Available | MAX1240ACSA+ | SOIC(N),;8 pin;30.9 mm² | 0°C to +70°C | No |
| MAX1240ACSA+ | Active | SOIC(N),;8 pin;30.9 mm² | 0°C to +70°C | Lead Free | |
| MAX1240ACSA+T | Active | SOIC(N),;8 pin;30.9 mm² | 0°C to +70°C | Lead Free | |
| MAX1240ACSA-T | No Longer Available | MAX1240ACSA+T | N.SO;8 pin | 0°C to +70°C | See data sheet |
| MAX1240AEPA | No Longer Available | MAX1240AEPA+ | PDIP(N),;8 pin;79.7 mm² | -40°C to +85°C | No |
| MAX1240AEPA+ | Active | PDIP(N),;8 pin;79.7 mm² | -40°C to +85°C | Lead Free | |
| MAX1240AESA | No Longer Available | MAX1240AESA+ | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | No |
| MAX1240AESA+ | Active | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | Lead Free | |
| Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
| MAX1240AESA+T | Active | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | Lead Free | |
| MAX1240AESA-T | No Longer Available | MAX1240AESA+T | N.SO;8 pin | -40°C to +85°C | See data sheet |
| MAX1240AESA/V+ | NRND | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | Lead Free | |
| MAX1240AESA/V+T | Active | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | Lead Free | |
| MAX1240AMJA | No Longer Available | CDIP(N),;8 pin;82.6 mm² | -55°C to +125°C | No | |
| MAX1240BCPA | No Longer Available | MAX1240BCPA+ | PDIP(N),;8 pin;79.7 mm² | 0°C to +70°C | No |
| MAX1240BCPA+ | Active | PDIP(N),;8 pin;79.7 mm² | 0°C to +70°C | Lead Free | |
| MAX1240BCSA | No Longer Available | MAX1240BCSA+ | SOIC(N),;8 pin;30.9 mm² | 0°C to +70°C | No |
| MAX1240BCSA+ | Active | SOIC(N),;8 pin;30.9 mm² | 0°C to +70°C | Lead Free | |
| MAX1240BCSA+T | Active | N.SO;8 pin | 0°C to +70°C | See data sheet | |
| Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
| MAX1240BCSA-T | No Longer Available | MAX1240BCSA+T | SOIC(N),;8 pin;30.9 mm² | 0°C to +70°C | No |
| MAX1240BEPA | No Longer Available | MAX1240BEPA+ | PDIP(N),;8 pin;79.7 mm² | -40°C to +85°C | No |
| MAX1240BEPA+ | Active | PDIP(N),;8 pin;79.7 mm² | -40°C to +85°C | Lead Free | |
| MAX1240BESA | No Longer Available | MAX1240BESA+ | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | No |
| MAX1240BESA+ | Active | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | Lead Free | |
| MAX1240BESA+T | Active | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | Lead Free | |
| MAX1240BESA-T | No Longer Available | MAX1240BESA+T | N.SO;8 pin | -40°C to +85°C | See data sheet |
| MAX1240BESA/V+ | Active | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | Lead Free | |
| MAX1240BESA/V+T | Active | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | Lead Free | |
| MAX1240BMJA | No Longer Available | CDIP(N),;8 pin;82.6 mm² | -55°C to +125°C | No | |
| Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
| MAX1240CC/D | No Longer Available | DICE; | 0°C to +70°C | See data sheet | |
| MAX1240CCPA | No Longer Available | MAX1240CCPA+ | PDIP(N),;8 pin;79.7 mm² | 0°C to +70°C | No |
| MAX1240CCPA+ | Active | PDIP(N),;8 pin;79.7 mm² | 0°C to +70°C | Lead Free | |
| MAX1240CCSA | No Longer Available | MAX1240CCSA+ | SOIC(N),;8 pin;30.9 mm² | 0°C to +70°C | No |
| MAX1240CCSA+ | Active | SOIC(N),;8 pin;30.9 mm² | 0°C to +70°C | Lead Free | |
| MAX1240CCSA+T | Active | N.SO;8 pin | 0°C to +70°C | See data sheet | |
| MAX1240CCSA-T | No Longer Available | MAX1240CCSA+T | N.SO;8 pin | 0°C to +70°C | See data sheet |
| MAX1240CEPA | No Longer Available | MAX1240CEPA+ | PDIP(N),;8 pin;79.7 mm² | -40°C to +85°C | No |
| MAX1240CEPA+ | Active | PDIP(N),;8 pin;79.7 mm² | -40°C to +85°C | Lead Free | |
| MAX1240CESA | No Longer Available | MAX1240CESA+ | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | No |
| Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
| MAX1240CESA+ | Active | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | Lead Free | |
| MAX1240CESA+T | Active | N.SO;8 pin | -40°C to +85°C | See data sheet | |
| MAX1240CESA-T | No Longer Available | MAX1240CESA+T | N.SO;8 pin | -40°C to +85°C | See data sheet |
| MAX1240CMJA | No Longer Available | CDIP(N),;8 pin;82.6 mm² | -55°C to +125°C | No |
- MAX1240-MAX1241.pdf MAX1241
- MAX1240.pdf MAX1240
- MAX1240-MAX1241.pdf MAX1241
