MAX1415, MAX1416 16-Bit, Low-Power, 2-Channel, Sigma-Delta ADCs

Description

The MAX1415/MAX1416 low-power, 2-channel, serial-output analog-to-digital converters (ADCs) use a sigma-delta modulator with a digital filter to achieve 16-bit resolution with no missing codes. These ADCs are pin-compatible upgrades to the MX7705/AD7705. The MAX1415/MAX1416 feature an internal oscillator (1MHz or 2.4576MHz), an on-chip input buffer, and a programmable gain amplifier (PGA). The devices offer an SPI™-/QSPI™-/MICROWIRE™-compatible serial interface.

The MAX1415 requires a single 2.7V to 3.6V supply, and the MAX1416 requires a single 4.75V to 5.25V supply. The operating supply current is 400µA (max) with a 3V supply. Power-down mode reduces the supply current to 2µA (typ). When operating with a supply of 3V, the power dissipation is less than 1.44mW, making the MAX1415 ideal for battery-powered applications.

Self-calibration and system calibration allow the MAX1415/MAX1416 to correct for gain and offset errors. Excellent DC performance (±0.0015% FSR INL) and low noise (700nV in unbuffered mode) make the MAX1415/ MAX1416 ideal for measuring low-frequency signals with a wide dynamic range. These devices accept fully differential bipolar/unipolar inputs. An internal input buffer allows for input signals with high source impedances. An on-chip digital filter, with a programmable cutoff and output data rate, processes the output of the sigma-delta modulator. The first notch frequency of the digital filter is chosen to provide 150dB rejection of common-mode 50Hz or 60Hz noise and 98dB rejection of normal-mode 50Hz or 60Hz noise. A PGA and digital filtering allow signals to be directly acquired with little or no signal-conditioning requirements.

The MAX1415/MAX1416 are available in 16-pin PDIP, SO, and TSSOP packages.

Key Features

Applications/Uses

16-Bit Sigma-Delta ADCs
Two Fully Differential Input Channels
0.0015% Integral Nonlinearity with No Missing Codes
Internal Analog Input Buffers
Programmable Gain Amplifier (PGA) from 1 to 128
Internal Oscillator (2.4576MHz or 1MHz)
Single 2.7V to 3.6V (MAX1415) or 4.75V to 5.25V (MAX1416) Supply
Low Power
- 1mW max, 3V Supply
- 2µA (typ) Power-Down Current
SPI-/QSPI-/MICROWIRE-Compatible 3-Wire Serial Interface
Pin Compatible with MX7705/AD7705
16-Pin PDIP, SO, and TSSOP Packages

	Flow and Gas Meters
	Industrial Instruments
	Loop-Powered Systems
	Medical Instrumentation
	Pressure Transducers
	RTD Measurements
	Strain-Gauge Measurements
	Thermocouple Measurements
	Weigh Scales

Key Specifications: Sigma-Delta ADCs

Part Number

Resolution (Bits)

Input Channels

Max. DNL (LSB)

Max. INL (±%FSR)

Conversion Rate (sps)

Typ. Supply Current (mA)

Ref. (V)

Special Features

Supply Voltage (V)

Data Bus Interface

Package

Operating Temp. Range (°C)

Price^**

MAX1415

0.03

500

0.32

Ext

Differential Inputs Unipolar/Bipolar
Internal Clock

Serial

PDIP/16
SOIC/16
TSSOP/16

-40 to +85

$4.33 @ 1k

MAX1416

$4.33 @ 1k

See All Sigma-Delta ADCs (13)

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: 1-32 of 32

MAX1415

Free
Sample

Buy

Package:	TYPE PINS FOOTPRINT
	DRAWING CODE/VAR *

Temp

RoHS/Lead-Free?
Materials Analysis

MAX1415AENE

See data sheet

MAX1415AEUE

See data sheet

MAX1415EPE+

PDIP;16 pin;
Dwg: 21-0043 (PDF)
Use pkgcode/variation: P16+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1415EPE

PDIP;16 pin;
Dwg: 21-0043 (PDF)
Use pkgcode/variation: P16-1*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX1415AEWE+T

-40°C to +85°C

See data sheet

MAX1415AEWE-T

-40°C to +85°C

See data sheet

MAX1415AEWE+

SOIC;16 pin;
Dwg: 21-0042 (PDF)
Use pkgcode/variation: W16+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1415AEWE

SOIC;16 pin;
Dwg: 21-0042 (PDF)
Use pkgcode/variation: W16-1*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX1415EWE+

SOIC;16 pin;
Dwg: 21-0042 (PDF)
Use pkgcode/variation: W16+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1415EWE+T

-40°C to +85°C

See data sheet

MAX1415EWE-T

-40°C to +85°C

See data sheet

MAX1415EWE

SOIC;16 pin;
Dwg: 21-0042 (PDF)
Use pkgcode/variation: W16-1*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX1415EUE-T

TSSOP;16 pin;
Dwg: 21-0066 (PDF)
Use pkgcode/variation: U16-2*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX1415EUE

TSSOP;16 pin;
Dwg: 21-0066 (PDF)
Use pkgcode/variation: U16-2*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX1415EUE+

TSSOP;16 pin;
Dwg: 21-0066 (PDF)
Use pkgcode/variation: U16+2*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1415EUE+T

TSSOP;16 pin;
Dwg: 21-0066 (PDF)
Use pkgcode/variation: U16+2*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1416

Free
Sample

Buy

Package:	TYPE PINS FOOTPRINT
	DRAWING CODE/VAR *

Temp

RoHS/Lead-Free?
Materials Analysis

MAX1416AEUE

See data sheet

MAX1416AENE

See data sheet

MAX1416EPE

PDIP;16 pin;
Dwg: 21-0043 (PDF)
Use pkgcode/variation: P16-1*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX1416EPE+

PDIP;16 pin;
Dwg: 21-0043 (PDF)
Use pkgcode/variation: P16+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1416AEWE-T

-40°C to +85°C

See data sheet

MAX1416AEWE+T

-40°C to +85°C

See data sheet

MAX1416AEWE+

SOIC;16 pin;
Dwg: 21-0042 (PDF)
Use pkgcode/variation: W16+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1416AEWE

SOIC;16 pin;
Dwg: 21-0042 (PDF)
Use pkgcode/variation: W16-1*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX1416EWE

SOIC;16 pin;
Dwg: 21-0042 (PDF)
Use pkgcode/variation: W16-1*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX1416EWE+T

-40°C to +85°C

See data sheet

MAX1416EWE+

SOIC;16 pin;
Dwg: 21-0042 (PDF)
Use pkgcode/variation: W16+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1416EWE-T

-40°C to +85°C

See data sheet

MAX1416EUE+T

-40°C to +85°C

See data sheet

MAX1416EUE+

TSSOP;16 pin;
Dwg: 21-0066 (PDF)
Use pkgcode/variation: U16+2*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1416EUE

TSSOP;16 pin;
Dwg: 21-0066 (PDF)
Use pkgcode/variation: U16-2*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX1416EUE-T

-40°C to +85°C

See data sheet