Datasheet

 2010 Microchip Technology Inc. DS22249A-page 5
MCP4802/4812/4822
ELECTRICAL CHARACTERISTIC WITH EXTENDED TEMPERATURE
Electrical Specifications: Unless otherwise indicated, V
DD
= 5V, V
SS
= 0V, V
REF
= 2.048V, Output Buffer Gain (G) = 2x,
R
L
= 5 k to GND, C
L
= 100 pF. Typical values are at +125°C by characterization or simulation.
Parameters Sym Min Typ Max Units Conditions
Power Requirements
Input Voltage V
DD
2.7 — 5.5 V
Input Current
Input Curren
I
DD
— 440 — µA All digital inputs are grounded,
all analog outputs (V
OUT
) are
unloaded. Code = 0x000h.
Software Shutdown Current I
SHDN_SW
—5—µA
Power-On Reset threshold V
POR
—1.85— V
DC Accuracy
MCP4802
Resolution n 8 — — Bits
INL Error INL — ±0.25 — LSb
DNL DNL — ±0.2 — LSb Note 1
MCP4812
Resolution n 10 — — Bits
INL Error INL — ±1 — LSb
DNL DNL — ±0.2 — LSb Note 1
MCP4822
Resolution n 12 — — Bits
INL Error INL — ±4 — LSb
DNL DNL — ±0.25 — LSb Note 1
Offset Error V
OS
— ±0.02 — % of FSR Code = 0x000h
Offset Error Temperature
Coefficient
V
OS
/°C — -5 — ppm/°C +25°C to +125°C
Gain Error g
E
— -0.10 — % of FSR Code = 0xFFFh,
not including offset error
Gain Error Temperature
Coefficient
G/°C — -3 — ppm/°C
Internal Voltage Reference (V
REF
)
Internal Reference Voltage V
REF
— 2.048 — V V
OUTA
when G = 1x and
Code = 0xFFFh
Temperature Coefficient
(Note 2)
V
REF
/°C — 125 — ppm/°C -40°C to 0°C
— 0.25 — LSb/°C -40°C to 0°C
— 45 — ppm/°C 0°C to +85°C
— 0.09 — LSb/°C 0°C to +85°C
Output Noise (V
REF
Noise) E
NREF
(0.1 – 10 Hz)
— 290 — µV
p-p
Code = 0xFFFh, G = 1x
Output Noise Density e
NREF
(1 kHz)
—1.2—µV/

Hz Code = 0xFFFh, G = 1x
e
NREF
(10 kHz)
—1.0—µV/

Hz Code = 0xFFFh, G = 1x
1/f Corner Frequency f
CORNER
— 400 — Hz
Note 1: Guaranteed monotonic by design over all codes.
2: This parameter is ensured by design, and not 100% tested.