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MCP4922T-EP Datasheet(PDF) 2 Page - Microchip Technology

Part No. MCP4922T-EP
Description  12-Bit DAC with SPI™ Interface
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Maker  MICROCHIP [Microchip Technology]
Homepage  http://www.microchip.com
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 2 page
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MCP4921/4922
DS21897A-page 2
 2004 Microchip Technology Inc.
1.0
ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings †
VDD............................................................................................................. 6.5V
All inputs and outputs w.r.t ............. AVSS –0.3V to VDD+0.3V
Current at Input Pins ....................................................±2 mA
Current at Supply Pins ...............................................±50 mA
Current at Output Pins ...............................................±25 mA
Storage temperature .....................................-65°C to +150°C
Ambient temp. with power applied ................-55°C to +125°C
ESD protection on all pins
........... ≥ 4 kV (HBM), ≥ 400V (MM)
Maximum Junction Temperature (TJ) . .........................+150°C
† Notice: Stresses above those listed under “Maximum Rat-
ings” may cause permanent damage to the device. This is a
stress rating only and functional operation of the device at
those or any other conditions above those indicated in the
operational listings of this specification is not implied. Expo-
sure to maximum rating conditions for extended periods may
affect device reliability.
5V AC/DC CHARACTERISTICS
Electrical Specifications: Unless otherwise indicated, VDD = 5V, AVSS = 0V, VREF = 2.048V, output buffer gain (G) = 2x, RL = 5 kΩ
to GND, CL = 100 pF TA = -40 to +85°C. Typical values at +25°C.
Parameters
Sym
Min
Typ
Max
Units
Conditions
Power Requirements
Input Voltage
VDD
2.7
5.5
Input Current - MCP4921
Input Current - MCP4922
IDD
175
350
350
700
µA
Input unbuffered, digital inputs
grounded, output unloaded,
code at 0x000
Hardware Shutdown Current
ISHDN
—0.3
2
µA
Software Shutdown Current
ISHDN_SW
—3.3
6
µA
Power-on-Reset Threshold
VPOR
—2.0
V
DC Accuracy
Resolution
n
12
Bits
INL Error
INL
-12
2
12
LSB
DNL
DNL
-0.75
±0.2
+0.75
LSB
Device is Monotonic
Offset Error
VOS
±0.02
1
% of FSR
Code 0x000h
Offset Error Temperature
Coefficient
VOS/°C
0.16
ppm/°C
-45°C to 25°C
-0.44
ppm/°C
+25°C to 85°C
Gain Error
gE
-0.10
1
% of FSR
Code 0xFFFh, not including offset
error.
Gain Error Temperature
Coefficient
G/°C
-3
ppm/°C
Input Amplifier (VREF Input)
Input Range - Buffered Mode
VREF
0.040
VDD – 0.040
V
Note 1
Code = 2048
VREF = 0.2v p-p, f = 100 Hz and 1 kHz
Input Range - Unbuffered
Mode
VREF
0—
VDD
V
Input Impedance
RVREF
165
k
Unbuffered Mode
Input Capacitance -
Unbuffered Mode
CVREF
—7
pF
Multiplier Mode
-3 dB Bandwidth
fVREF
450
kHz
VREF = 2.5V ±0.2Vp-p, Unbuffered,
G = 1
fVREF
400
kHz
VREF = 2.5V ±0.2 Vp-p, Unbuffered,
G = 2
Multiplier Mode -
Total Harmonic Distortion
THDVREF
—-73
dB
VREF = 2.5V ±0.2Vp-p,
Frequency = 1 kHz
Note
1:
By design, not production tested.
2:
Too small to quantify.




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