MX7837AR datasheet(3/12 Pages) MAXIM

Part #	MX7837AR

Description	Complete, Dual, 12-Bit Multiplying DACs

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Manufacturer	MAXIM [Maxim Integrated Products]

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Complete, Dual, 12-Bit

Multiplying DACs

_______________________________________________________________________________________

3

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

CONDITIONS

±0.01

Power-Supply Rejection

±0.01

% per %

Voltage-Output Settling

Time

tS

Settling time to within ±1/2LSB of final DAC value;

DAC latch alternately loaded will all 0s and all 1s

4

µs

Slew Rate

7

V/µs

Digital-to Analog Glitch

Impulse

Q

DAC latch alternately loaded with 01…11 and

10…00

60

nV-s

Channel-to-Channel Isolation

(VREFA to VOUTB,

VREFB to VOUTA)

VREF = 20p-p, 10kHz sine wave, Alternate DAC

Latch Loaded with all 0s

-95

dB

Multiplying Feedthrough

Error

-90

dB

Unity-Gain Small-Signal

Bandwidth

THD

1

MHz

Full-Power Bandwidth

125

kHz

Total Harmonic Distortion

VREF = 6VRMS, 1kHz, DAC latch loaded with all 1s

-88

dB

Digital Crosstalk

Code transition from all 0s to all 1s; see

Typical

Operating Characteristics graphs

10

nV-s

Output Noise Voltage at

+25°C (0.1Hz to 10Hz)

Amplifier noise and Johnson noise of RFB

2

µVRMS

VDD Range

VDD

11.4

16.5

V

Positive Supply Current

IDD

510

mA

Output unloaded

Negative Supply Current

ISS

46

mA

Output unloaded

VSS Range

VSS

-11.4

-16.5

V

VREF = 20Vp-p Sine wave, DAC latch loaded with

all 1s

VREF = 100mVp-p sine wave, DAC latch loaded

with all 1s

VREF_ = 20Vp-p, 10kHz sine wave, latches loaded

with all 0s

VSS = -12V ±5%, VREF = 8.9V

VDD = 12V ±5%, VREF = -8.9V

VSS = -15V ±5%, VREF = 10V

VDD = 15V ±5%, VREF = -10V

∆Gain/∆VDD

∆Gain/∆VSS

∆Gain/∆VDD

ELECTRICAL CHARACTERISTICS (continued)

(VDD = 11.4V to 16.5V, VSS = -11.4V to -16.5V, AGNDA = AGNDB = DGND = 0V, VREFA = VREFB = +10V, RL = 2kΩ, CL = 100pF,

VOUT connected to RFB (MX7837), TA = TMIN to TMAX, unless otherwise noted.) (Note 1)

Note 2: The analog outputs can swing to within 2.5V of the supply rails. Hence, for good linearity towards full-scale, |VREFA| and |VREFB| must

be at least 2.5V lower than VDD and |VSS|. Tests done with supply voltages below ±12.5V are done with VREFA = VREFB = ±8.9V.

Note 3: Static performance tested at VDD = +15V, VSS = -15V. Performance over supplies guaranteed by PSRR test.

Note 4: Guaranteed by design.

POWER REQUIREMENTS

AC CHARACTERISTICS

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