MAX1195 datasheet(4/22 Pages) MAXIM | Dual, 8-Bit, 40Msps, 3V, Low-Power ADC with Internal Reference and Parallel Outputs

Part No.	MAX1195

Description	Dual, 8-Bit, 40Msps, 3V, Low-Power ADC with Internal Reference and Parallel Outputs

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Manufacturer	MAXIM [Maxim Integrated Products]

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Dual, 8-Bit, 40Msps, 3V, Low-Power ADC with

Internal Reference and Parallel Outputs

4

_______________________________________________________________________________________

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Common-Mode Level

VCOM

(Note 5)

VDD / 2

±0.1

V

Differential Reference Output

Voltage Range

∆VREF

∆VREF = VREFP - VREFN

1.024

±3%

V

Reference Temperature

Coefficient

TCREF

±100

ppm/°C

BUFFERED EXTERNAL REFERENCE (VREFIN = 2.048V)

Positive Reference Output

Voltage

VREFP

(Note 5)

2.012

V

Negative Reference Output

Voltage

VREFN

(Note 5)

0.988

V

Common-Mode Level

VCOM

(Note 5)

VDD / 2

±0.1

V

Differential Reference Output

Voltage Range

∆VREF

∆VREF = VREFP - VREFN

1.024

±2%

V

REFIN Resistance

RREFIN

>50

M

Ω

Maximum REFP, COM Source

Current

ISOURCE

5mA

Maximum REFP, COM Sink

Current

ISINK

-250

µA

Maximum REFN Source Current

ISOURCE

250

µA

Maximum REFN Sink Current

ISINK

-5mA

UNBUFFERED EXTERNAL REFERENCE (VREFIN = AGND, reference voltage applied to REFP, REFN, and COM)

REFP, REFN Input Resistance

RREFP,

RREFN

Measured between REFP, COM, REFN,

and COM

4k

Ω

REFP, REFN, COM Input

Capacitance

CIN

15

pF

Differential Reference Input

Voltage Range

∆VREF

∆VREF = VREFP - VREFN

1.024

±10%

V

COM Input Voltage Range

VCOM

VDD / 2

±5%

V

REFP Input Voltage

VREFP

VCOM +

∆VREF / 2

V

REFN Input Voltage

VREFN

VCOM –

∆VREF / 2

V

ELECTRICAL CHARACTERISTICS (continued)

(VDD = OVDD = 3V, 0.1µF and 2.2µF capacitors from REFP, REFN, and COM to GND; REFOUT connected to REFIN through a 10k

Ω

resistor, VIN = 2VP-P (differential with respect to COM), CL = 10pF at digital outputs, fCLK = 40MHz, TA = TMIN to TMAX, unless

otherwise noted.

≥+25°C guaranteed by production test, <+25°C guaranteed by design and characerization. Typical values are at

TA = +25°C.)

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