SPECIFICATIO N S

(Typical @ +25ºC and rated power supply unless otherwise noted)

SERIES

HSA DC85

TY PE

Successive A pproximation

RESOLUTION

12-Bits

A NA LOG INPUTS

Bipolar Ranges

±2.5V . ±5V . ±10V

Unipolar Ranges

0 to +5V , 0 to +10V

Impedance (Direct Input)

300 / V olt

Buffer A mplifier

Impedance

100M (min)

Bias Current

50 nA

2 µS

Start

Positive Pulse 50nS W ide (min). Trailing Edge

Logic Loading

1 TTL Load

External Clock

DIGITA L OUTPUTS2

Parallel Data

Output Codes

Unipolar

Comp. Straight Bin.

Bipolar

Comp. Offset Bin., Comp, Two's Comp.

Output Drive

2 TTL Loads (min)

Serial (Non Return to Zero) Data

Output Codes

Comp. Straight Bin., Comp. Offset Bin.

Output Drive

2 TTL Loads (min)

Status

Logic “ 1” During Conversion

Status Output Drive

2 TTL Loads (min)

Clock Out4

Output Drive

2 TTL Loads (min)

Frequency

1.4 M Hz

REFERENCE

Internal +6.2V ±5%

Ref Out

200 µA M aximum with no Degradation of Specs

Drift

±10ppm/ºC (max)

CONV ERSION TIM E/THROUGHPUT RA TE

8.8 µS, Typ; 10 µS, max/100 kHz

A CCURA CY @ 25ºC

Quantization

±1/2LSB

Linearity

±0.012% of F.S.R. (max)

Unipolar

±0.05% of F.S.R.

Bipolar

±0.1% of F.S.R.(max)

±0.1% of F.S.R.

M onotonicity

No M issing Codes

STA BILITY

Linearity

–25ºC to +85ºC

±1 ppm/ºC; ±2 ppm/ºC, (max)

–55ºC to +125ºC

±2 ppm/ºC. (max)

Scale Factor (Gain)

–25ºC to +85ºC

±8 ppm/ºC; ±15 ppm/ºC, (max)

–55ºC to +125ºC

±20 ppm/ºC, (max)

Offset (Unipolar)

–25ºC to +85ºC

±2 ppm/ºC; ±3 ppm/ºC, (max)

–55ºC to +125ºC

±3 ppm/ºC. (max)

Offset (Bipolar)

–25ºC to +85ºC

±4 ppm/ºC; ±7 ppm/ºC. (max)

–55ºC to +125ºC

±12 ppm/ºC, (max)

Total Transfer A ccuracy

–25ºC to +85ºC

±10 ppm/ºC; ±20 ppm/ºC. (max)

–55ºC to +125ºC

±30 ppm/ºC, (max)

HS ADC85 SERIES

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