MAX1142, MAX1143 14-Bit ADC, 200ksps, +5V Single-Supply with Reference

Description

The MAX1142/MAX1143 are 200ksps, 14-bit ADCs. These serially interfaced ADCs connect directly to SPI™, QSPI™, and MICROWIRE™ devices without external logic. They combine an input scaling network, internal track/hold, a clock, +4.096V reference, and three general-purpose digital output pins (for external multiplexer or PGA control) in a 20-pin SSOP package. The excellent dynamic performance (SINAD > 81dB), high-speed (200ksps), and low power (7.5mA) of these ADCs, make them ideal for applications such as industrial process control, instrumentation, and medical applications. The MAX1142 accepts input signals of 0 to +12V (unipolar) or ±12V (bipolar), while the MAX1143 accepts input signals of 0 to +4.096V (unipolar) or ±4.096V (bipolar). Operating from a single +4.75V to +5.25V analog supply and a +4.75V to +5.25V digital supply, power-down modes reduce current consumption to 1mA at 10ksps and further reduce supply current to less than 20µA at slower data rates. A serial strobe output (SSTRB) allows direct connection to the TMS320-family of digital signal processors. The MAX1142/MAX1143 user can select either the internal clock, or an external serial-interface clock for the ADC to perform analog-to-digital conversions.

The MAX1142/MAX1143 feature internal calibration circuitry to correct linearity and offset errors. On-demand calibration allows the user to optimize performance. Three user-programmable logic outputs are provided for the control of an 8-channel MUX or a PGA.

Key Features

Applications/Uses

200ksps (bipolar) and 150ksps (unipolar) Sampling ADC
14-Bits, No Missing Codes
1LSB INL Guaranteed
81dB (min) SINAD
+5V Single-Supply Operation
Low Power Operation, 7.5mA (Unipolar Mode)
2.5µA Shutdown Mode
Software-Configurable Unipolar & Bipolar Input Ranges
- 0 to +12V and ±12V (MAX1142)
- 0 to +4.096V and ±4.096V (MAX1143)
- Internal or External Reference
Internal or External Clock
SPI/QSPI/MICROWIRE-Compatible Wire Serial Interface
Three User-Programmable Logic Outputs
Small 20-Pin SSOP Package

Data Acquisition

Key Specifications: Precision ADCs (< 5Msps)

Part Number

ADC Resolution (Bits)

Input Channels

Conv. Rate (ksps)

Max. Conv. Time (µs)

Data Bus (Bits)

Ref. (V)

Input Range (V)

Diff. In

Supply Voltage (V)

Typ. Supply Current (mA)

Typ. Power (mW)

Low Power Mode

Standby Mode

EV-Kit

RoHS Available

Package

Operating Temp. Range (°C)

Price^**

MAX1142

200

Serial

Ext
Int +4.096
Ratiometric

±12
12

Yes

SSOP/20

-40 to +85
0 to +70

$14.95 @ 1k

MAX1143

±4.096
4.096

$14.95 @ 1k

See All Precision ADCs (< 5Msps) (301)

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.

Ordering Information

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-26 of 26

MAX1142

Free
Sample

Buy

Package:	TYPE PINS FOOTPRINT
	DRAWING CODE/VAR *

Temp

RoHS/Lead-Free?
Materials Analysis

MAX1142ACAP

SSOP;20 pin;
Dwg: 21-0056C (PDF)
Use pkgcode/variation: A20-2*

0°C to +70°C

RoHS/Lead-Free: No
Materials Analysis

MAX1142ACAP+

SSOP;20 pin;
Dwg: 21-0056C (PDF)
Use pkgcode/variation: A20+2*

0°C to +70°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1142BCAP+

SSOP;20 pin;
Dwg: 21-0056C (PDF)
Use pkgcode/variation: A20+2*

0°C to +70°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1142BCAP+T

0°C to +70°C

See data sheet

MAX1142ACAP+T

0°C to +70°C

See data sheet

MAX1142BCAP-T

0°C to +70°C

See data sheet

MAX1142ACAP-T

0°C to +70°C

See data sheet

MAX1142BCAP

SSOP;20 pin;
Dwg: 21-0056C (PDF)
Use pkgcode/variation: A20-2*

0°C to +70°C

RoHS/Lead-Free: No
Materials Analysis

MAX1142BEAP

SSOP;20 pin;
Dwg: 21-0056C (PDF)
Use pkgcode/variation: A20-2*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX1142AEAP+

SSOP;20 pin;
Dwg: 21-0056C (PDF)
Use pkgcode/variation: A20+2*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1142AEAP+T

-40°C to +85°C

See data sheet

MAX1142AEAP

SSOP;20 pin;
Dwg: 21-0056C (PDF)
Use pkgcode/variation: A20-2*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX1142AEAP-T

-40°C to +85°C

See data sheet

MAX1142BEAP+

SSOP;20 pin;
Dwg: 21-0056C (PDF)
Use pkgcode/variation: A20+2*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1142BEAP-T

-40°C to +85°C

See data sheet

MAX1142BEAP+T

-40°C to +85°C

See data sheet

MAX1143

Free
Sample

Buy

Package:	TYPE PINS FOOTPRINT
	DRAWING CODE/VAR *

Temp

RoHS/Lead-Free?
Materials Analysis

MAX1143BEAP

-40°C to +85°C

See data sheet

MAX1143AEAP

-40°C to +85°C

See data sheet

MAX1143BCAP+

SSOP;20 pin;
Dwg: 21-0056C (PDF)
Use pkgcode/variation: A20+2*

0°C to +70°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1143ACAP+T

0°C to +70°C

See data sheet

MAX1143ACAP+

SSOP;20 pin;
Dwg: 21-0056C (PDF)
Use pkgcode/variation: A20+2*

0°C to +70°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1143ACAP

SSOP;20 pin;
Dwg: 21-0056C (PDF)
Use pkgcode/variation: A20-2*

0°C to +70°C

RoHS/Lead-Free: No
Materials Analysis

MAX1143ACAP-T

0°C to +70°C

See data sheet

MAX1143BCAP

SSOP;20 pin;
Dwg: 21-0056C (PDF)
Use pkgcode/variation: A20-2*

0°C to +70°C

RoHS/Lead-Free: No
Materials Analysis

MAX1143BCAP-T

SSOP;20 pin;
Dwg: 21-0056C (PDF)
Use pkgcode/variation: A20-2*

0°C to +70°C

RoHS/Lead-Free: No
Materials Analysis

MAX1143BCAP+T

SSOP;20 pin;
Dwg: 21-0056C (PDF)
Use pkgcode/variation: A20+2*

0°C to +70°C

RoHS/Lead-Free: Lead Free
Materials Analysis

Related Products

MAX1132, MAX1133 16-Bit ADC, 200ksps, 5V Single-Supply with Reference
MAX1134, MAX1135 16-Bit ADCs, 150ksps, 3.3V Single Supply
MAX1144, MAX1145 14-Bit ADCs, 150ksps, 3.3V Single Supply